Fundação Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro / O estudo objetivou avaliar a composição florística e estrutural dos componentes arbustivo-arbóreo da Floresta Ombrófila Densa submontana em diferentes estágios de regeneração natural, na vertente sudeste do Parque Estadual da Ilha Grande/RJ. Para o inventário florístico foram realizadas coletas assistemáticas em diferentes trechos nessa vertente. A complementação da lista de espécies foi feita a partir, da consulta às exsicatas dos herbários do Rio de Janeiro (FCAB, GUA, HB, HRJ, R, RB, RBR, RFA, RFFP e RUSU) e do inventário fitossociológico. Foi verificado o status de conservação das espécies inventariadas para a Flora Brasileira. Para o inventário fitossociológico foram estabelecidas 34 parcelas amostrais, totalizando 1,02 ha de área amostrada. Todos os indivíduos arbustivo-arbóreos com DAP ≥ 5 cm foram registrados e, após identificação, foram depositados no Herbário da Universidade do Estado do Rio de Janeiro (HRJ). O pacote estatístico FITOPAC 2.1. foi utilizado para a análise dos dados. A similaridade entre o remanescente investigado neste estudo e as outras quatorze áreas distintas do Rio de Janeiro, da própria Ilha Grande ou não, foi avaliada, utilizando-se o coeficiente de Similaridade de Sorensen; pelo critério de agrupamento por ligação média não ponderada (UPGMA) e pelo método de autorreamostragem para a estrutura de grupos; utilizados os programas PAST v1.34 e Multiv 2.4. A partir do levantamento em herbários e dos inventários florístico e fitossociológico realizados neste trabalho, foram analisados 3.470 registros, sendo 1.778 do levantamento de herbários, 1.536 do levantamento fitossociológico e 156 do inventário florístico. Esses registros corresponderam a 606 espécies ou morfo-espécies de Angiospermas e uma de Pteridófita. Os resultados obtidos revelaram a existência de 22 espécies ameaçadas de extinção para a Flora do Brasil. Dentre, as quais, sete são exclusivas da amostragem fitossociológica: Abarema cochliacarpos (Gomes) Barneby & J.W. Grimes, Chrysophyllum flexuosum Mart., Ficus pulchella Schott ex Spreng., Macrotorus utriculatus Perkins, Myrceugenia myrcioides (Cambess.) O.Berg, Rudgea interrupta Benth e Urbanodendron bahiense (Meisn.) Rohwer. No estudo fitossociológico, inventariou-se 1.536 indivíduos de 217 espécies, subordinadas a 53 famílias. O índice de diversidade de Shannon (H) calculado foi de 4,702 nats/ind e equabilidade (J) de 0,874. As 10 famílias com maior riqueza foram: Myrtaceae (31 spp.), Rubiaceae (21), Fabaceae (17), Lauraceae (12), Euphorbiaceae (11), Monimiaceae (8), Melastomataceae (7), Sapindaceae (7), Sapotaceae (6) e Annonaceae (6). Os 10 maiores Valores de Importância das espécies foram para Chrysophyllum flexuosum (3,43%), Lamanonia ternata Vell. (3,40%), Hyeronima alchorneoides Allemão (2,83%), Actinostemon verticillatus (Klotzsch) Baill. (2,55%), Psychotria brasiliensis Vell. (2,55%), Eriotheca pentaphylla (Vell.) A. Robyns (2,28%), Guatteria australis A. St.-Hil. (2,12%), Mabea brasiliensis Müll. Arg. (2,04%), Miconia prasina (Sw.) DC. (1,89%) e Rustia formosa (Cham. & Schltdl. ex DC.) Klotzsch (1,82%). Amostraram-se 27% de espécies representadas por apenas um indivíduo. As análises florísticas avaliadas a partir do Índice de Similaridade de Sorensen indicaram como principais variáveis para a formação dos blocos, os diferentes valores de diversidade para as áreas e a distribuição fitogeográfica das espécies. Os resultados obtidos junto aos dados dos grupos ecológicos, para os indivíduos da fitossociologia, indicaram maior percentual de indivíduos secundários tardios amostrados. Conclui-se que a área de estudo é uma floresta secundária em estágio intermediário de regeneração, com grande riqueza de espécies, muitas das quais de relevante importância ecológica. / The study has as purpose to evaluate the floristic and structural composition of shrub-arboreal component in the submontane forest patch within the Atlantic Rain Forest domain with different stages of natural regeneration, in the southeast slope at the State Park of Ilha Grande, RJ. For the floristic studies were realized unsystematic samples in different parts in this slope. The species list was complemented with the conference at herbarium collections of the Rio de Janeiro (FCAB, GUA, HB, HRJ, R, RB, RBR, RFA, RFFP e RUSU) and with the results obtained of phytosociological studies. The conservation status of recorded species was verified for the Brazilian Flora. 34 plots of samples were set out for the phytosociological studies, totaling 1.02 ha of sampled area. All shrubby-arboreous individuals with DAP ≥ 5 cm were registered and, after identification, were deposited in the Herbarium of the Universidade do Estado do Rio de Janeiro (HRJ). The statistical package FITOPAC 2.1. was used for data analysis. The similarity between the remaining investigated in this study and fourteen others from different areas of Rio de Janeiro, of llha Grande's itself or not, was evaluated using the similarity coefficient of Sorensen; by Unweighted Pair Group Method with Arithmetic Mean (UPGMA) criterion and by the auto-resampling method for the structure of groups; by using the programs PAST v1.34 and Multiv 2.4. From the survey in herbariums and from floristic and phytosociological inventories carried in this paper, were examined 3,470 registers: 1,778 of the survey in herbariums, 1,536 of phytosociological and 156 of floristic studies. These registers corresponded to 606 species or morpho-species of Angiosperms and one of Pteridophyte. The results revealed the existence of 22 species threatened by extinction for Brazilian Flora. From among which, seven are exclusive of phytosociological sampling: Abarema cochliacarpos (Gomes) Barneby & J.W. Grimes, Chrysophyllum flexuosum Mart., Ficus pulchella Schott ex Spreng., Macrotorus utriculatus Perkins, Myrceugenia myrcioides (Cambess.) O.Berg, Rudgea interrupta Benth and Urbanodendron bahiense (Meisn.) Rohwer. In phytosociological study, were inventoried 1,536 individuals of 217 species, subordinate to 53 families. The Shannon diversity indices (H ') calculated was 4,702 nats/ind and equability (J) of 0.874. The ten families with highest richness were: Myrtaceae (31 spp.), Rubiaceae (21), Fabaceae (17), Lauraceae (12), Euphorbiaceae (11), Monimiaceae (8), Melastomataceae (7), Sapindaceae (7), Sapotaceae (6) and Annonaceae (6). The 10 highest values for species importance were for Chrysophyllum flexuosum (3,43%), Lamanonia ternata Vell. (3,40%), Hyeronima alchorneoides Allemão (2,83%), Actinostemon verticillatus (Klotzsch) Baill. (2,55%), Psychotria brasiliensis Vell. (2,55%), Eriotheca pentaphylla (Vell.) A. Robyns (2,28%), Guatteria australis A. St.-Hil. (2,12%), Mabea brasiliensis Müll. Arg. (2,04%), Miconia prasina (Sw.) DC. (1,89%) and Rustia formosa (Cham. & Schltdl. ex DC.) Klotzsch (1,82%). Were sampled 27% species represented by only one individual. The Floristic analyzes evaluated from the Sorensen Similarity Index indicated as the main variables for the formation of blocks, the different values of diversity for the areas and the phytogeographical distribution of species. The results obtained along with data from ecological groups, for individuals of the phytosociology, indicated a higher percentage of secondaries tardy individuals sampled. It Concludes that the study area is a secondary forest in regeneration intermediate stage, with great richness of species, many of which with relevant ecological importance

Made available in DSpace on 2017-07-10T17:40:46Z (GMT). No. of bitstreams: 1 2014_Tese_Homero_Scalon_Filho.pdf: 7423772 bytes, checksum: da7fe41b8adc20ffaebc71dac1a85c5a (MD5) Previous issue date: 2014-04-04 / Limited information is available on the floristic composition of ecosystem and population surveys are time consuming and expensive, and sampling a considerable alternative. The objective of this work was the completion of the census of five native tree species in the forest area of savanah, and subsequent implementation and evaluation of sampling methods employed in phytosociological surveys. The characteristics of frequency, density and dominance absolutes were estimated and observed the dispersion of juveniles relative to the nearest matrix. An area of 75,000 m2 was previously selected in the Santa Madalena farm, district of Itahum, city of Dourados, MS, Brazil, located at coordinates 22o09'07.57" S and 54o59'55.43" O to 483 m high, and divided into 30 smaller areas of 50 x 50 meters to facilitate the identification, marking, counting, measuring and checking of tree evaluated. Species considered due to the high extraction for presenting therapeutic capabilities, were Anadenanthera falcata (Bth) Speg (angico-preto-do-cerrado), Bauhinia holophyla (Bong.) Stend (falsa-pata-de-vaca), Dimorfanda mollis Benth (faveiro-do-cerrado), Duguetia furfuraceae (St. Hil.) B. et H. (araticum-do-cerrado) and Tabebuia aurea (Manso) B. et H. (para-tudo). Were collected Circumference at Breast Height - CBH, canopy diameter and georeferenced position. The diameter of the canopy was estimated from the average of the largest diameter and the other transverse to it, allowing the estimation of the mean radius, which was then transformed into area pantries to estimate the coverage area CA of each species. The CBH was used for calculation of dominance parameter affect the basal area. The frequency was calculated as the number of individuals observed and the number of areas in which the species occurred, and the density was expressed as number of individuals per unit area (acres). Values of frequency, density and dominances relatives were used to calculate the Importance Value Index - IVI. The data georeferencing were launched in Software AutoCad generated six maps in scale 1:400, being a general map and five, one for each species evaluated. The maps were divided into quadrants for analysis of dispersion and sampling strategies from them were established with variation of the area sampled to evaluate the effectiveness of different sampling systems used in phytosociological surveys in forest savannah. 549 individuals were found with CBH above 0.02 m being the species with the highest number araticum (155 individuals), and falsa-pata-de-vaca the lowest occurrence (9 individuals). The CA was generated by five species of 922.959 m2 ha-1, this being 476.832 m2 ha-1 refers to angico and only 3.289 m2 ha-1 for the falsa-pata-de-vaca. The angico still showed higher dominance (1.212) and IVI (103.560), and falsa-pata-de-vaca only 0.003 of dominance and IVI of 5.22. CBH values were transformed in diameter at breast height - DBH and distributed into five classes in order to investigate their distribution according to age groups, and it was found that the class of younger subjects, there was suppression of the species, indicating strong impacting action and electing distribution in age classes as an important tool for understanding the phenological state of the forest. Treatments faced with the census sampling methods were composed of varying areas. Most methods differ significantly in phytosociological parameters of the sense performed. For the evaluation of the number of individuals para-tudo the method of sample plots was efficient. For estimates the phytosociological parameters any of sampling methods can be recommended for forest savannah, in the conditions that this study was conducted / Existe pouca informação sobre a composição florística dos ecossistemas e levantamentos populacionais são demorados e caros, sendo a amostragem uma alternativa considerável. O objetivo deste trabalho foi a realização do censo populacional de cinco espécies arbóreas em área nativa de mata de cerrado, e posterior aplicação e avaliação de métodos de amostragem empregados em levantamentos fitossociológicos. Foram estimadas as características frequência, densidade e dominância absolutas e observada a dispersão dos indivíduos jovens em relação à matriz mais próxima. Uma área útil de 75.000 m2 foi previamente selecionada na fazenda Santa Madalena, distrito de Itahum, município de Dourados, MS, situada nas coordenadas 22o09 07.57 S e 54o59 55.43 O a 483 metros de altitude, e dividida em 30 áreas menores de 50 x 50 metros para facilitar a identificação, marcação, contagem, medição e conferência dos indivíduos avaliados. As espécies consideradas em função do alto extrativismo, por apresentarem capacidades terapêuticas segundo mateiros locais, foram a Anadenanthera falcata (Bth) Speg (angico-preto-docerrado), Bauhinia holophyla (Bong.) Stend (falsa-pata-de-vaca), Dimorfanda mollis Benth (faveiro-do-cerrado), Duguetia furfuraceae (St. Hil.) B. et H. (araticum-do-cerrado) e Tabebuia aurea (Manso) B. et H. (para-tudo). Os dados coletados foram circunferência à altura do peito CAP, diâmetro de copas e posição georreferenciada. O diâmetro das copas foi estimado a partir da média entre o maior diâmetro e outro transversal a este, permitindo a estimativa do raio médio que em seguida foi transformado em área de copas para estimativa da área de cobertura AC de cada espécie. A CAP foi utilizada para os cálculos de dominância, parâmetro afeto à área basal. A frequência foi calculada em função do número de indivíduos observados e o número de áreas em que ocorreu a espécie, e a densidade foi expressa em número de indivíduos por unidade de área (hectares). Dos valores de frequências, densidades e dominâncias relativas foi calculado o Índice de Valor de Importância IVI. Os dados de georreferenciamento foram lançados no Software AutoCad que gerou seis mapas em escala de 1:400, sendo um mapa geral e outros cinco, um para cada espécie avaliada, que foram divididos em quadrantes para análises de dispersão e a partir deles foram estabelecidas estratégias amostrais, com variação da área amostrada visando avaliar a eficácia dos diferentes sistemas amostrais utilizados em levantamentos fitossociológicos em mata de cerrado. Foram encontrados 549 indivíduos com CAP acima de 0,02 m sendo a espécie com maior número o araticum (155 indivíduos), e a falsa-pata-de-vaca a de menor ocorrência (9 indivíduos). A AC gerada pelas cinco espécies foi de 922,959 m2 ha-1, sendo desta 476,832 m2 ha-1 referente ao angico e apenas 3,289 m2 ha-1 pela falsa-pata-de-vaca. O angico ainda apresentou maior dominância (1,212) e IVI (103,560), e a falsa-pata-de-vaca apenas 0,003 de dominância e IVI de 5,22. Os valores de CAP foram transformados em Diâmetro à Altura do Peito - DAP e distribuídos em cinco classes para averiguação de sua distribuição conforme grupos de idade, e foi verificado que na classe dos indivíduos mais jovens houve supressão das espécies, evidenciando forte ação impactante e elegendo a distribuição em classes de idades como ferramenta importante para o entendimento do estado fenológico da mata. Os tratamentos confrontados com o censo foram compostos por métodos amostrais com variação nas áreas. Para a avaliação do número de indivíduos do para-tudo os métodos foram eficientes exceção feita à parcela de 5 x 10 m e o transecto em duas direções. Os métodos diferiram significativamente, em todos os parâmetros fitossociológicos, do senso realizado. Para estimativas dos parâmetros fitossociológicos nenhum dos métodos amostrais avaliados pode ser recomendado para mata de cerrado, nas condições em que este estudo foi conduzido

L’étude de la flore et de la végétation des clairières sur sol hydromorphe a été menée dans le Parc National de l’Ivindo au Nord-est du Gabon. La méthode phytosociologique de Braun-Blanquet (1932) a été retenue pour la réalisation des relevés au sein des deux principales formations végétales qui composent ce biotope: la prairie et la lisière qui la ceinture. Cent trente trois relevés ont permis de recenser 229 espèces réparties en 175 genres et 72 familles. Les matrices formées à partir de ces relevés et de ces espèces ont été analysées par la méthode Indicator Value (IndVal) ; des analyses canoniques redressées (DCA) et des analyses canoniques des correspondances (CCA) ont servi pour les ordinations. Des analyses de variance (ANOVA) suivies des tests post hoc de Bonferonni ont permis de voir si les valeurs des paramètres environnementaux et structuraux mesurés au sein des différents groupes sont différentes. La flore globale des clairières est dominée par les Cyperaceae, les Rubiaceae et les Leguminosae-Caesalpinoideae. Cinq espèces (Fuirena stricta subsp. stricta, Pycreus subtrigonus, Pycreus mundtii, Rhynchospora perrieri et Leptochloa coerulecens) sont signalées pour la première fois au Gabon. Huit groupements sont décrits: 5 pour les prairies et 3 au niveau des lisières. Quatre des groupements des prairies (le groupement pélophyte semi-aquatique à Costus afer et Centotheca lappacea ; le groupement hélophyte semi-aquatique à Pycreus mundtii et Pycreus subtrigonus ; le groupement pélophyte semi-aquatique à Virectaria multiflora et Kyllinga pumila ainsi que le groupement nitrophyte à Tristemma leiocalyx et Bacopa crenata) appartiennent à la classe des Phragmitetea tandis que le dernier (le groupement aquatique à Schoenoplectus mucronatus et Nymphaea heudelotii) se rattache à la classe des Potametea. Deux des groupements de lisières (le groupement pélophyte pré-forestier à Ludwigia africana et Nephrolepis bisserata; le groupement hygrophyte des forêts marécageuses à Anthocleista schweinfurthii et Uapaca guineensis) appartiennent à la classe des Mitragynetea et le dernier (le groupement nitrophyte pré-forestier marécageux à Leptochloa coerulescens et Echinochloa indica) à celle des Phragmitetea. L’hydromorphie et la profondeur de la vase ainsi que la fréquentation animale constituent les variables environnementales qui influencent significativement le déterminisme de ces groupements au sein des prairies, alors que ces variables n’ont aucun effet sur les groupements de lisière. La richesse spécifique varie de 62 à 164 pour les groupements de lisière tandis qu’au sein des prairies, elle varie de 35 à 63. Les indices de diversité moyens pour l’ensemble des groupements des clairières sont 4,4 ± 0,5 (Shannon), 0,07 ± 0,03 (Simpson) et l’équitabilité de Piélou est de 0,78 ± 0,05. La flore étudié n’est inféodée aux clairières du Gabon, les espèces endémiques guinéo-congolaises sont dominantes au niveau des lisières alors que ce sont les espèces à large distribution qui prédominent dans les prairies. Les géophytes et des thérophytes dominent dans les prairies tandis que les phanérophytes sont dominants dans les lisières. La zoochorie et l’anémochorie constituent les modes de dissémination les plus rencontrés au sein de la flore étudiée. Mots clés : clairière intraforestière, flore, groupements végétaux, phytosociologie, Gabon. Abstract The study of the flora and the vegetation of the swampy clearings on hydromorphic soils were realized in the National Park of Ivindo in north-eastern of Gabon. The phytosociological method of Braun-Blanquet was adopted for the realization of the relevés within the two principal vegetation type which form this biotope: the central meadow and the edge which girdles it. 133 relevés made it possible to count 229 species divided into 175 genera and 72 families. The matrices made starting from these relevés and of these species were analyzed by the method Ind Val; DCA made it possible to obtain groupings; CCA made it possible to evaluate the environmental link between parameter and the vegetation. An analysis of variance (ANOVA) follow-up of the tests post hoc of Bonferonni made it possible to see whether the values measured within the various groups are different. The flora is dominated by Cyperaceae, Rubiaceae and Leguminosae-Caesalpinoideae. Five species, Fuirena stricta subsp stricta, Pycreus subtrigonus, Pycreus mundtii, Rhynchospora perrieri and Leptochloa coerulescens are announced for the first time to Gabon. Eight associations are described: 5 for the meadows and 3 on the level of the edges. Four of the associations of the meadows (the pelophyte semi-aquatic association with Costus afer and Centotheca lappacea; the helophyte semi-aquatic association with Pycreus mundtii and Pycreus subtrigonus; the pelophyte semi-aquatic association with Virectaria multiflora and Kyllinga pumila; the nitrophyte association with Tristemma leiocalyx and Bacopa crenata) belong to the class of Phragmitetea while the last (the aquatic association with Schoenoplectus mucronatus and Nymphaea heudelotii) is belong to the class of Potametea . Two of the associations of edges (the pelophyte pre-forester association with Ludwigia africana and Nephrolepis bisserata; the hygrophyte association of the marshy forests with Anthocleista schweinfurthii and Uapaca guineensis) belong to the class of Mitragynetea and the third (the nitrophyte marshy pre-forester association with Leptochloa coerulescens and Echinochloa indica) to Phragmitetea. The hydro-morphology and the depth of the mud as well as the animal frequentation constitute the environmental variables which influence the occurrence of these associations within the meadows, whereas they do not have any effect on the association edge. The species richness varies from 62 to 164 for the association edge while within the meadows it varies from 35 to 63. The average indices of diversity for the whole of the associations of the clearings are 4.4 ± 0.5 (Shannon), 0.07 ± 0.03 (Simpson) while Piélou’s evenness is 0.78 ± 0.05. The flora is not uniquely linked with the clearings of Gabon, although, on the phytogeographical level, the guineo-congolian endemics are dominant on the level of the edges whereas in fact the species with broad distributions prevail in the meadows. The analysis of the biological types shows the preponderance of the geophytes and the therophytes for the meadows while the edges are largely dominated by phanérophytes. The zoochory and the anemochory constitute the modes of dissemination most met within the studied flora. Key words: Swampy clearings on hydromorphic soils, flora, association, phytosociology, forest clearings, Gabon.

Conservation and management of the ecology of natural areas has become a prerequisite for mining companies in South Africa. Systematic conservation planning provides a useful tool for land–use planning and impact assessment, particularly in the mining industry. A study was therefore undertaken to provide sufficient, spatially explicit biodiversity and veld condition information to aid in the development and establishment of an official conservation plan for the leased mining area of Impala Platinum. By identifying areas with high plant diversity or endemism and by assessing veld conditions as well as grazing and browsing capacities, recommendations could be made towards management strategies and potential future land–use practices. The licensed mining area, north of Rustenburg, covers 29334 ha and includes 14 operational shafts. The area was stratified into three main categories based on landscape types namely: norite koppies; thornveld and rehabilitated areas. The Braun Blanquet approach was followed to sample 139 stratified random relevés. Additional computer software packages were used for capturing, processing and presentation of the phytosociological data (TURBOVEG) as well as a visual editor for phytosociological tables (MEGATAB). Ordinations were subsequently performed to confirm the plant communities and illustrate possible environmental gradients, using multivariate statistic analyses (CANOCO). Four plant communities with two subcommunities were identified and described in both the norite koppies and thornveld respectively while three plant communities with three sub–communities were identified in the rehabilitated areas. Specific environmental factors that influence plant community structure and composition in the norite koppies were the aspect and percentage of soil surface rockiness while soil types proved to be the distinguishing factor in the thornveld. The distribution of plant communities in the rehabilitated areas is mainly due to anthropogenic influences rather than any environmental factors. The Fixed Point Monitoring of Vegetation Methodology– FIXMOVE was then used to sample 32 stratified random survey plots in four selected plant communities in order to quantify and compare veld conditions as well as grazing and browsing capacities. The determination of landscape functionality served to support these quantitative results. The Landscape Function Analysis (LFA) method was used for this purpose. Multivariate statistic analyses (CANOCO) were used to indicate possible degradation gradients between the plant communities. Conclusions regarding conservation and management units were reached by interpreting the quantitative data in accordance with the phytosociological results and recommendations could then be made. All the norite koppies plant communities were recommended as areas for The Fixed Point Monitoring of Vegetation Methodology– FIXMOVE was then used to sample 32 stratified random survey plots in four selected plant communities in order to quantify and compare veld conditions as well as grazing and browsing capacities. The determination of landscape functionality served to support these quantitative results. The Landscape Function Analysis (LFA) method was used for this purpose. Multivariate statistic analyses (CANOCO) were used to indicate possible degradation gradients between the plant communities. Conclusions regarding conservation and management units were reached by interpreting the quantitative data in accordance with the phytosociological results and recommendations could then be made. All the norite koppies plant communities were recommended as areas for ii conservation because of unique and high biodiversity and anthropogenic threats. The Eragrostis rigidior–Ziziphus mucronata and Acacia caffra–Bothriochloa insculpta Communities in the thornveld showed the best potential for browsing and grazing practices but were also recommended for conservation because of their high species diversity and anthropogenic threats. The high landscape functionality, veld condition and grazing capacity of the Aristida bipartita–Bothriochloa insculpta Community indicated that the rehabilitation of the opencast mining areas had been relatively successful at the time of the surveys. Selected parts of the Indigofera heterotricha–Aristida bipartita Community were also recommended for conservation and management in the form of controlled and more effective grazing strategies were recommended for the rest of the thornveld. / Thesis (M. Environmental Science)--North-West University, Potchefstroom Campus, 2011.

Conservation and management of the ecology of natural areas has become a prerequisite for mining companies in South Africa. Systematic conservation planning provides a useful tool for land–use planning and impact assessment, particularly in the mining industry. A study was therefore undertaken to provide sufficient, spatially explicit biodiversity and veld condition information to aid in the development and establishment of an official conservation plan for the leased mining area of Impala Platinum. By identifying areas with high plant diversity or endemism and by assessing veld conditions as well as grazing and browsing capacities, recommendations could be made towards management strategies and potential future land–use practices. The licensed mining area, north of Rustenburg, covers 29334 ha and includes 14 operational shafts. The area was stratified into three main categories based on landscape types namely: norite koppies; thornveld and rehabilitated areas. The Braun Blanquet approach was followed to sample 139 stratified random relevés. Additional computer software packages were used for capturing, processing and presentation of the phytosociological data (TURBOVEG) as well as a visual editor for phytosociological tables (MEGATAB). Ordinations were subsequently performed to confirm the plant communities and illustrate possible environmental gradients, using multivariate statistic analyses (CANOCO). Four plant communities with two subcommunities were identified and described in both the norite koppies and thornveld respectively while three plant communities with three sub–communities were identified in the rehabilitated areas. Specific environmental factors that influence plant community structure and composition in the norite koppies were the aspect and percentage of soil surface rockiness while soil types proved to be the distinguishing factor in the thornveld. The distribution of plant communities in the rehabilitated areas is mainly due to anthropogenic influences rather than any environmental factors. The Fixed Point Monitoring of Vegetation Methodology– FIXMOVE was then used to sample 32 stratified random survey plots in four selected plant communities in order to quantify and compare veld conditions as well as grazing and browsing capacities. The determination of landscape functionality served to support these quantitative results. The Landscape Function Analysis (LFA) method was used for this purpose. Multivariate statistic analyses (CANOCO) were used to indicate possible degradation gradients between the plant communities. Conclusions regarding conservation and management units were reached by interpreting the quantitative data in accordance with the phytosociological results and recommendations could then be made. All the norite koppies plant communities were recommended as areas for The Fixed Point Monitoring of Vegetation Methodology– FIXMOVE was then used to sample 32 stratified random survey plots in four selected plant communities in order to quantify and compare veld conditions as well as grazing and browsing capacities. The determination of landscape functionality served to support these quantitative results. The Landscape Function Analysis (LFA) method was used for this purpose. Multivariate statistic analyses (CANOCO) were used to indicate possible degradation gradients between the plant communities. Conclusions regarding conservation and management units were reached by interpreting the quantitative data in accordance with the phytosociological results and recommendations could then be made. All the norite koppies plant communities were recommended as areas for ii conservation because of unique and high biodiversity and anthropogenic threats. The Eragrostis rigidior–Ziziphus mucronata and Acacia caffra–Bothriochloa insculpta Communities in the thornveld showed the best potential for browsing and grazing practices but were also recommended for conservation because of their high species diversity and anthropogenic threats. The high landscape functionality, veld condition and grazing capacity of the Aristida bipartita–Bothriochloa insculpta Community indicated that the rehabilitation of the opencast mining areas had been relatively successful at the time of the surveys. Selected parts of the Indigofera heterotricha–Aristida bipartita Community were also recommended for conservation and management in the form of controlled and more effective grazing strategies were recommended for the rest of the thornveld. / Thesis (M. Environmental Science)--North-West University, Potchefstroom Campus, 2011.

Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-06-08T10:50:51Z No. of bitstreams: 1 LÁZARO AVELINO DE SOUSA - DISSERTAÇÃO (PPGRN) 2016.pdf: 3247066 bytes, checksum: e582088b0cdecdad1bb01707be66b12b (MD5) / Made available in DSpace on 2018-06-08T10:50:51Z (GMT). No. of bitstreams: 1 LÁZARO AVELINO DE SOUSA - DISSERTAÇÃO (PPGRN) 2016.pdf: 3247066 bytes, checksum: e582088b0cdecdad1bb01707be66b12b (MD5) Previous issue date: 2016-08-30 / Capes / O presente estudo teve como objetivo principal analisar a evolução do processo regenerativo de uma área degradada de caatinga em estágio de recuperação (no período de 2008 a 2015) na Fazenda Barra, município de Santa Luzia-PB, na microrregião do Seridó Ocidental. A referida área mede 1,88 ha e encontra-se em estado de pousio há aproximadamente oito anos, quando teve início a implantação do projeto original de recuperação, através do qual foi implantado no interior da área um experimento pioneiro com plantio de mudas de espécies nativas em solo preparado com nanobacias hidrográficas. Para analisar a regeneração foi feito um levantamento florístico e fitossociológico para verificar a composição, a estrutura e a distribuição diamétrica das espécies vegetais existentes na referida área, com fins de comparar esses parâmetros com os do primeiro estudo realizado no local. Os parâmetros fitossociológicos analisados foram: Densidade e Dominância Absoluta e Relativa, Área Basal, Valor de Cobertura e os índices de Diversidade e Riqueza das espécies. Também foi feita a análise de amostras do solo para a devida classificação e verificação dos índices de fertilidade, e analisou-se a sobrevivência e o crescimento de espécies nativas que foram transplantadas no experimento supracitado. Na composição florística foram encontradas 28 espécies incluídas em 27 gêneros e 15 famílias dentre os 12.258 indivíduos registrados na área geral. No ambiente experimental, o percentual de sobrevivência das espécies caiu entre os anos de 2012 e 2015 para todas as espécies transplantadas, tanto no solo preparado com nanobacias, quanto no ambiente de plantio direto. Os índices de fertilidade do solo na área experimental também caíram em relação a 2012, sendo que os números do ambiente preparado com nanobacias permaneceram mais altos que os do plantio direto. Na área geral estudada, concluiu-se que houve significativa recuperação, tanto da vegetação, quanto do solo no período considerado. O isolamento da área se mostrou mais eficaz no processo de regeneração natural do que as demais técnicas de recuperação empregadas no local. Apesar da técnica de preparo do solo com nanobacias ter garantido maiores índices de fertilidade do solo e de sobrevivência e crescimento das mudas transplantadas, foi o isolamento da área combinado com os níveis de chuvas acumuladas no período considerado que garantiram a recuperação verificada na área geral. / The main aim proposed by this study has been analyze the evolution of the regenerative process of degraded caatinga’s area in a leg of recovery (from 2008 to 2015) in the Fazenda Barra, Santa Luzia – PB’s countryside, in the microregion of Ocidental Serido. The area measures 1,88 ha, and it has been isolated for eight years, when it has begun the original project’s recuperation of this area. Its recuperation has been implemented in the interior of the area a pioneer experiment through the direct planting of native species in prepared soil, with hydrographic Nanobacias. To analyze the soil’s regeneration it has been done a floristic and phytosociological survey to check the composition, structure and diameter distribution of plant species in that area, for purposes of comparing these parameters with the first study conducted on the place. The analyzed phytosociological parameters were: Density and Dominance Absolute and Relative, Basal Area, covering value and contents diversity and richness of species. It also has been done soil samples analysis to proper classification and verification of fertility rates was taken. And, It has been analyzed the survival and growth of native species were transplanted in the mentioned experiment. In the floristic composition has been found 28 species included in 27 gender and 15 families among the 12,258 individuals registered in the general area. In the experimental environment, the percentage of the species’ survival fell down between the years 2012 and 2015 for all transplanted species, both in the prepared soil with nanobacias, as in the environment of direct planting. Soil fertility rates in the experimental area also has been fell compared to 2012, and the numbers of the prepared environment with nanobacias remained higher than the direct planting. In the overall study area, it has been concluded that there was a significant recovery as in the vegetation as in the soil in the considered period. The isolation of the area was more efficient in the natural regeneration process than other recovery techniques employed in the place. Despite the technique of soil’s preparation with nanobacias have secured higher rates of soil’s fertility, survival and growth of transplanted seedlings, it was the isolation of the area combined to the levels of accumulated rainfall during the period considered that has been ensured the recovery, which has been seen in the general area.

Resumo: O Pólo Regional de Desenvolvimento Tecnológico do Agronegócio da Região Centro Norte em Pindorama, SP, com 532,8 ha possui quatro fragmentos florestais distribuídos em 120 ha classificados como floresta tropical estacional semidecidual do bioma Mata Atlântica. Transformados em Reserva Biológica (Lei Estadual nº 4960/86) detêm grande diversidade das espécies de ocorrência regional. O presente trabalho teve por objetivo caracterizar a vegetação arbórea de dois fragmentos pertencentes à Reserva Biológica de Pindorama - SP e sua possível variação florística e estrutural decorrente dos atributos de solos, de relevo, distância da borda e infestação da área. Foram demarcados dois transectos com parcelas sequenciais de 20 m x 20 m em fragmentos e solos distintos. Foi realizado um levantamento planialtimétrico usando as variáveis: declividade, altitude e disposição das parcelas ao longo do transecto. Foi sorteado um quadrante de 10 m x 10 m por parcela, para realizar as avaliações de granulometria e fertilidade do solo, bem como de identificação e classificação dos indivíduos arbóreos com diâmetro a altura do peito (DAP) ≥ 5,0 cm e dos seguintes descritores fitossociológicos: frequência, dominância e densidades relativas e absolutas, valor de importância (VI), Índice de Diversidade de Shannon (H'), Coeficiente de Equabilidade de Pielou (J) e o Índice de Similaridade de Jaccard (ISJ) entre as duas áreas. Em cada parcela de 20 m x 20 m foi avaliado o grau de infestação por plantas invasoras, a altura, o DAP, a área basal, e o distanciamento da borda das quatro maiores árvores. A caracterização da vegetação arbórea foi feita com o uso de análises estatísticas multivariadas dos dados obtidos. O Índice de Diversidade de Shannon (H') calculado foi 3,38 para as duas áreas e se encontra dentro da média para fragmentos de ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The Pólo Regional Centro Norte in Pindorama, SP, has a 120 hectares area constituted of forest remainders transformed into Biological Reserve by the law nº 4960/86 since a great diversity of regional occurrence species was withhold. These forest remainders are classified as seasonal semi-deciduous tropical forest of the Atlantic Forest biome. This work aimed carry out a phytosociological survey of two toposequences in different remainders and its possible soil attributes due variation and relief. To such work two transects were demarcated with sequential parcels of 20 m x 20 m. A topographic survey was carried out using the following variables: slope, height and localization of the plots throughout the profile. A quadrant of 10 m x 10 m was chosen randomly in each parcel and in its area an evaluation of the physical and chemical soil attributes using samples in the 0-20 cm depth composed of 20 sub-samples. In this quadrant the individuals with breast height diameter (DBH) ≥ 5,0 cm were identified, marked, classified and their phytosociology describers calculated: relative and absolute frequency and densities, value of importance (VI), Shannon Diversity Index (H '), Equability (J) and the Jaccard Similarity Index (ISJ) between the two areas. For each parcel the degree of weeds was evaluated adopting ten classes according the infestation percentage varying from null to very high. The hierarchic grouping test based on the soil physical and chemical attributes allowed a division in five groups of parcels. For each group the average values of each characteristic were determined, as well as recalculated the diversity species index, equability and the similarity between the groups index. It could be concluded that the hierarchic method grouping analysis showed efficient to separate groups of phytosociology sampling parcels in seasonal semi-deciduous tropical forest when it was ... (Complete abstract click electronic access below) / Orientador: Sergio Valiengo Valeri / Coorientador: Antônio Sérgio Ferraudo / Banca: Rinaldo César de Paula / Banca: Teresa Cristina Tarlé Pissarra / Banca: Sidney Rosa Vieira / Banca: Luiz Fernando Duarte de Moraes / Doutor

Made available in DSpace on 2016-12-23T13:51:45Z (GMT). No. of bitstreams: 1 Joao Paulo Fernandes Zorzanelli.pdf: 1847176 bytes, checksum: 78cb79a7776f3d01fe02a7b8991b5b16 (MD5) Previous issue date: 2012-08-30 / Os objetivos deste estudo foram listar as espécies de um trecho de Floresta Ombrófila Montana Serra do Valentim, verificar a distribuição geográfica das mesmas e analisar a estrutura e similaridade florística. Foram coletados materiais botânicos férteis de árvores, arbustos, ervas, epífitas, trepadeiras e lianas ao longo de trilhas e picadas em 25 idas a campo entre os anos de 2011 e 2012. Foi registrado um total de 391 espécies, 220 gêneros e 99 famílias. Dentre estas, 27 foram consideradas ameaçadas de extinção, três endêmicas para o estado do Espírito Santo e três possíveis novas para a ciência. O padrão geográfico mais encontrado foi o neotropical, embora muitas espécies (cerca de 10%) estivessem restritas à vegetação de Mata Atlântica do sudeste do Brasil. A estrutura da vegetação foi analisada num total de 10 transectos de dimensões 50 x 2 metros, sendo registrados todos os indivíduos (vivos e mortos), entre árvores, arbustos e lianas, com DAP≥2,5 cm. Foi mensurado o diâmetro para todos os indivíduos e a altura total foi estimada apenas para os indivíduos vivos. A similaridade florística foi estimada através do índice de Bray-Curtis e o algoritmo WPGMA foi utilizado para agrupar as vegetações referentes a 12 listagens florísticas. Foram encontradas 146 espécies, 95 gêneros e 53 famílias, sendo a espécie com maior valor de importância Euterpe edulis Mart. O índice de Shanon (H =3,60 nats/ind.) foi próximo ao encontrado para florestas bem preservadas da Mata Atlântica e o índice de Pielou (J=0,72) foi considerado elevado. Os valores de similaridade foram baixos revelando pouca consistência na análise de agrupamento. Os resultados demonstraram a grande lacuna existente em termos de conhecimento florístico para as vegetações do estado do Espírito Santo, bem como para a região do entorno do Caparaó, sugerindo um processo de intensificação de coletas e estudos estruturais e florísticos, em face da grande riqueza encontrada. A distinção da vegetação da Serra do Valentim em relação às demais analisadas representa a heterogeneidade existente ao longo da Mata Atlântica em resposta a diversos fatores, entre fisiográficos, edáficos, climáticos e altimétricos. Estes fatores contribuem para a formação de centros de diversidade pontuais restritos a pequenas regiões. Diante da riqueza encontrada, da flora ameaçada, do nível de endemismo e das possíveis novas espécies, a Serra do Valentim é merecedora de políticas de conservação / The objectives of this study were to list the species a stretch montane rain forest Serra do Valentim, verify the geographical distribution of the same and analyze the structure and floristic similarity. F ertile botanical materials were collected from trees, shrubs, herbs, epiphytes, vines and lianas along tracks and trails on 25 field trips between the years 2011 and 2012. A total of 391 species, 220 genera and 99 families were registered. Among these, 27 were considered endangered, three endemic to the state of Espírito Santo, and three possible new to science. The most geographical pattern found was neotropical, although many species (about 10%) were restricted to Atlantic Forest vegetation in southeastern Brazil. The vegetation structure was analyzed in a total of 10 transects of dimensions 50 x 2 meters, and recorded all individuals (living and dead), among trees, shrubs and lianas with DBH ≥ 2.5 cm. Diameter was measured for all individuals and the overall height was estimated only for individuals alive. The floristic similarity was estimated using the Bray-Curtis index and WPGMA algorithm was used to group the vegetation related to 12 floristic listings. Were found 146 species, 95 genera and 53 families, and the species with the highest importance value was Euterpe edulis Mart. The Shanon index (H = 3.60 nats / ind.) was close to that found for the unspoilt forests of the Atlantic Forest and the Pielou index (J = 0.72) was considered high. The similarity values were low revealing lacking consistency in cluster analysis. The results showed the large gap in terms of floristic knowledge to the vegetation of the state of Espírito Santo, as well as the area surrounding the Caparaó, suggesting a process of intensification of collections and floristic and structural studies, due to the great wealth found. The distinction of the vegetation from Serra do Valentim in relation the others analyzed represents the heterogeneity along the Atlantic in response to several factors, among physiographic, edaphic, climatic and altimetric. These factors contribute to the formation of punctual centers of diversity restricted to small regions. Given the wealth found, threatened flora, level of endemism and possible new species, Serra do Valentim is worthy of conservation policies

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Este estudo tem por objetivo ampliar o conhecimento sobre a flora da Ilha Grande, Angra dos Reis, RJ, através da avaliação florística e fitossociológica da comunidade arbustivoarbórea, com Circunferência à Altura do Peito ≥ 15,7 cm (CAP ≥ 5,0 cm) em trechos de Floresta Atlântica montana. Foram alocadas 34 parcelas retangulares e permanentes de 10x30 m, totalizando uma área amostral de 1,02 ha. Foram amostrados todos os indivíduos arbustivoarbóreos vivos, que tiveram aferidas a circunferência do caule, estimada a altura total, altura do fuste e realizada a coleta de material botânico. A identificação dos espécimes foi realizada através da análise das estruturas vegetativas e reprodutivas, comparação em herbários, consultas a literatura especializada e, quando possível, com auxílio de especialistas. O material botânico coletado está sendo incorporado à coleção do Herbário da Universidade do Estado do Rio de Janeiro (HRJ). Procedeu-se a avaliação do status de conservação das espécies determinadas para identificar o grau de ameaça. A estrutura da comunidade inventaria foi analisada através do pacote estatístico FITOPAC 2.1. Inventariou-se 1.847 indivíduos arbustivo-arbóreos vivos, subordinados a 225 espécies ou morfo-espécies de 27 gêneros e 53 famílias botânicas. Este estudo constatou que a Ilha Grande é uma nova área de ocorrência para 53 espécies fanerogâmicas. As famílias mais abundantes foram: Myrtaceae (391 indivíduos), Rubiaceae (337), Euphorbiaceae (100), Fabaceae (84) e Sapotaceae (72). Myrtaceae (69 spp.), Rubiaceae (14), Fabaceae (13), Lauraceae e Sapotaceae (11) foram as famílias que apresentaram as maiores riquezas. O índice de diversidade de Shannon & Weaver (H) obtido foi de 4,609 nats/indvs. e o de equabilidade (J) de 0,851. Os parâmetros fitossociológicos calculados indicaram que Amaioua intermedia Mart. (5,17%), Eriotheca pentaphylla (Vell.) A. Robyns (4,84%), Qualea glaziovii Warm. (2,74%), Vochysia bifalcata Warm. (2,69%), Xylopia brasiliensis Spreng. (2,48%), Heisteria silvianii Schwacke (2,43%), Coussarea nodosa (Benth.) Müll. Arg. (2,38%), Guapira opposita (Vell.) Reitz (2,37%), Manilkara subsericea (Mart.) Dubard (2,02%) e Inga lanceifolia Benth. (1,86%) são as espécies com maiores Valores de Importância (VI). Entre as táxons inventariados foi possível identificar 69 espécies raras, representadas na comunidade por um único indivíduo, e nove espécies com problemas de conservação, dais quais Chrysophyllum flexuosum Mart., Micropholis crassipedicellata (Mart. & Eichler ex Miq.) Pierre e Manilkara subsericea (Mart.) Dubard estão categorizadas como dependentes de conservação; Eugenia prasina O. Berg como vulnerável; Myrceugenia myrcioides (Cambess.) O.Berg como futuramente ameaçada de extinção; Ocotea odorifera Rohwer como ameaçada de extinção e/ou vulnerável a extinção; Pradosia kuhlmannii Toledo como ameaçada de extinção; Solanum carautae Carvalho como espécie rara e Urbanodendron bahiense (Meisn.) Rohwer em perigo de extinção. A distribuição dos indivíduos em classes diamétricas apresentou uma tendência exponencial negativa, sugerindo que a comunidade possui capacidade de autoregeneração. Os resultados da composição florística e da estrutura da vegetação montana do PEIG evidenciaram expressiva riqueza e diversidade de espécies arbóreas, cuja preservação é fundamental para o funcionamento e o equilíbrio desta formação. Palavras-chave: Mata Atlântica. Floresta montana. Fitossociologia. Parque Estadual da Ilha Grande. / The aim of this study is to broaden the knowledge of the flora of the Ilha Grande in Angra dos Reis, RJ, through the floristic and phytosociological assessment of the shrub-tree community, with circumferences at breast-height ≥ 15,7 cm (CAP ≥ 15,7cm) in mountain areas of the Atlantic Forest. 34 rectangular plots of land were assigned and permanent ones of 10X30 m, totaling a surveyed area of 1.02 hectares. All the live shrub-tree were sampled which had the trunk circumference gauged, as well as estimated total height and the collection of botanical material was done. The identification of specimen was done through the analysis of vegetative and reproductive structures, the herbarious comparisons and the consultations of specialized literature, and whenever possible with the help of specialists. The collected material is being incorporated into the Rio de Janeiro University Herbarium (HRJ). The assessment proceeded on the status of the determined species conservation in order to identify the degree of threat. The structured of the sampled community was analyzed through the statistic packet FITOPAC 2.1. 847 individual live shrub-trees were sampled, subordinate to 225 species or morph-species of 27 genus and 53 botanical families. This study found that the Big Island is a new area of occurrence for 53 species phanerogams. The most abundant families were: Myrtaceae, (391individuals), Rubiaceae (337), Euphorbiaceae (100), Fabaceae (84) e Sapotaceae (72). Myrtaceae (69 species), Rubiaceae (14), Fabaceae (13), Lauraceae and Sapotaceae (11) were the families which present more wealth. The diversity index of Shannon & Weaver (H) obtained was that of 4,609 nat/indvs and that of equability (J) of 0,851. The calculated phytosociological parameters indicated that the Amaioa intermedia Mart, (5,17%), Eriotheca pentaphylla (Vell.) A. Robyns (4,84%), Qualea glaziovii Warm. (2,74%), Vochysia bifalcata Warm. (2,69%), Xylopia brasiliensis Spreng. (2,48%), Heisteria silvianii Schwacke (2,43%), Coussarea nodosa (Benth.) Müll. Arg. (2,38%), Guapira opposita (Vell.) Reitz (2,37%), Manilkara subsericea (Mart.) Dubard (2,02%) e Inga lanceifolia Benth. (1,86%) are the species with the greatest Importance Value (VI). Amongst the sampled species it was possible to register 69 rare species represented in the community by one single individual, and nine species have conservation problems, which Chrysophyllum flexuosum Mart., Micropholis crassipedicellata (Mart. & Eichler ex Miq.) Pierre e Manilkara subsericea (Mart.) Dubard are categorized as dependent on conservation, Eugenia prasina O. Berg as vulnerable to extinction, Myrceugenia myrcioides (Cambess.) O.Berg as threatened by future extinction, Ocotea odorifera Rohwer as endangered and/or vulnerable to extinction, Pradosia kuhlmannii Toledo as endangered, Solanum carautae Carvalho as rare specie e Urbanodendron bahiense (Meisn.) Rohwer as danger of extinction. Diameter distribution was observed with negative exponential trend, suggesting that the community has the capacity for self-regeneration. The results of the floristic composition and structure of vegetation montana PEIG showed expressive richness and diversity of tree species whose preservation is essential to the functioning and balance this forest formation.

Made available in DSpace on 2014-06-11T19:33:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-12-18Bitstream added on 2014-06-13T20:25:31Z : No. of bitstreams: 1 abdo_mtvn_dr_jabo.pdf: 2025109 bytes, checksum: 89f5bff247436d6f48c4411240545115 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O Pólo Regional de Desenvolvimento Tecnológico do Agronegócio da Região Centro Norte em Pindorama, SP, com 532,8 ha possui quatro fragmentos florestais distribuídos em 120 ha classificados como floresta tropical estacional semidecidual do bioma Mata Atlântica. Transformados em Reserva Biológica (Lei Estadual nº 4960/86) detêm grande diversidade das espécies de ocorrência regional. O presente trabalho teve por objetivo caracterizar a vegetação arbórea de dois fragmentos pertencentes à Reserva Biológica de Pindorama - SP e sua possível variação florística e estrutural decorrente dos atributos de solos, de relevo, distância da borda e infestação da área. Foram demarcados dois transectos com parcelas sequenciais de 20 m x 20 m em fragmentos e solos distintos. Foi realizado um levantamento planialtimétrico usando as variáveis: declividade, altitude e disposição das parcelas ao longo do transecto. Foi sorteado um quadrante de 10 m x 10 m por parcela, para realizar as avaliações de granulometria e fertilidade do solo, bem como de identificação e classificação dos indivíduos arbóreos com diâmetro a altura do peito (DAP) ≥ 5,0 cm e dos seguintes descritores fitossociológicos: frequência, dominância e densidades relativas e absolutas, valor de importância (VI), Índice de Diversidade de Shannon (H`), Coeficiente de Equabilidade de Pielou (J) e o Índice de Similaridade de Jaccard (ISJ) entre as duas áreas. Em cada parcela de 20 m x 20 m foi avaliado o grau de infestação por plantas invasoras, a altura, o DAP, a área basal, e o distanciamento da borda das quatro maiores árvores. A caracterização da vegetação arbórea foi feita com o uso de análises estatísticas multivariadas dos dados obtidos. O Índice de Diversidade de Shannon (H’) calculado foi 3,38 para as duas áreas e se encontra dentro da média para fragmentos de... / The Pólo Regional Centro Norte in Pindorama, SP, has a 120 hectares area constituted of forest remainders transformed into Biological Reserve by the law nº 4960/86 since a great diversity of regional occurrence species was withhold. These forest remainders are classified as seasonal semi-deciduous tropical forest of the Atlantic Forest biome. This work aimed carry out a phytosociological survey of two toposequences in different remainders and its possible soil attributes due variation and relief. To such work two transects were demarcated with sequential parcels of 20 m x 20 m. A topographic survey was carried out using the following variables: slope, height and localization of the plots throughout the profile. A quadrant of 10 m x 10 m was chosen randomly in each parcel and in its area an evaluation of the physical and chemical soil attributes using samples in the 0-20 cm depth composed of 20 sub-samples. In this quadrant the individuals with breast height diameter (DBH) ≥ 5,0 cm were identified, marked, classified and their phytosociology describers calculated: relative and absolute frequency and densities, value of importance (VI), Shannon Diversity Index (H `), Equability (J) and the Jaccard Similarity Index (ISJ) between the two areas. For each parcel the degree of weeds was evaluated adopting ten classes according the infestation percentage varying from null to very high. The hierarchic grouping test based on the soil physical and chemical attributes allowed a division in five groups of parcels. For each group the average values of each characteristic were determined, as well as recalculated the diversity species index, equability and the similarity between the groups index. It could be concluded that the hierarchic method grouping analysis showed efficient to separate groups of phytosociology sampling parcels in seasonal semi-deciduous tropical forest when it was ... (Complete abstract click electronic access below)