Wetlands serve important ecosystem functions such as carbon sequestration but are often affected by disturbances like urban development, agriculture, and road building. For wetlands created to mitigate losses, it is important that the ecosystem functions successfully replicate those of natural wetlands. Created wetlands have frequently not provided these functions due to issues including low organic carbon (OC), high soil bulk density (BD), lost topsoil, incorrect hydrology, and failure of targeted vegetation establishment. Organic matter (OM) amendments help created wetlands attain these functions quicker, but, their long-term effects are seldom reported. This research's purpose was to measure the long-term effects of treatments at a sandy tidal freshwater wetland created in 2003 (WWE) and a fine-textured, non-tidal wetland created in 2002 (CCW). We tested OM treatments, topsoil amendment, and microtopography effects on soil and vegetation properties at WWE and OM treatments at CCW. Pedogenic changes in soil morphology, physical and chemical properties were detected by comparing data to previous studies at these sites. At both sites, litter and biomass parameters were measured to estimate total mass C. Herbaceous biomass was measured at WWE. At WWE, no long-term OM treatment effects from 78 or 156 Mg ha-1 were observed. Soils in pits had higher OC, lower BD, and lower chroma than soils on mounds. Sandy and loamy HSFI's developed at WWE within four years, but there were fewer sandy indicators after 12 years. Loamy HSFI's were lost at CCW from 2003 to 2016. Plots at WWE that were amended with topsoil had higher soil mass C than the sandy soil due to a finer texture, but total mass C did not vary. At CCW, long-term OM treatment effects were observed, including lower BD, higher soil mass C, and higher tree mass C with increasing compost rates up to 224 Mg ha-1. Overall, the ideal compost loading rate for constructed wetlands varied with wetland type and mitigation goals. Compost rates of 112 Mg ha-1 are sufficient for short term establishment of wetland vegetation and hydric soil properties, but higher rates near 224 Mg ha-1 may be required for effects that last over 10 years. / Ph. D. / Wetlands are unique habitats that provide environmental benefits such as carbon storage but are often negatively affected by human disturbances such as urban development and road construction. When wetlands are constructed to mitigate natural wetland losses, it is important that they successfully provide the benefits of the wetlands they replace. Created wetlands have frequently not functioned like natural wetlands due to soil issues including low organic carbon (OC) and high soil density (BD). Organic matter (OM) amendments such as composted yard waste help created wetlands attain these functions quickly after construction compared to unamnded wetlands. The purpose of this study was to measure long-term (greater than 10 years) effects of OM treatments on soil and vegetation properties at two different created wetlands. The two wetlands were a sandy tidal freshwater wetland created in 2003 (WWE) and a fine-textured, compacted, non-tidal wetland created in 2002 (CCW). Previous soil data were compared to recent soil samples to detect changes in physical and chemical soil properties over time. At WWE, soils in pits accumulated more OM, were higher in carbon, lower in BD, and had greyer color than soils in mounds. Hydric soil field indicators developed from upland soil within four years after construction at WWE. There were no long term compost effects on soil properties compared to a fertilized control, but the compost rates used were low compared to other recommendations, and the wetland was constructed carefully to avoid compaction. There were much higher rates of compost applied at CCW, which produced lower BD, higher soil mass C, and higher tree biomass. We recommend applying OM and avoiding compaction during wetland construction. Ideal OM loading rate depends on wetland type (soil texture, hydrology) and mitigation goals. In the fine-textured, compacted wetland studied here, compost rates of 112 Mg ha⁻¹ are ideal for short term establishment of wetland vegetation and soil properties, but higher rates near 224 Mg ha⁻¹ may be required for long term effects.

L’étude géographique des risques sanitaires hydriques à Antananarivo, capitale métropolitaine de Madagascar, pays tropical et au niveau de développement faible, s’articule à travers les conditions d’accès à la ressource, l’évaluation de la qualité de l’eau distribuée mais également à travers les pratiques domestiques accomplies jusqu’à sa consommation. Cette thèse cherche à illustrer via le déterminant hydrique combien les questions au croisement de la santé et de l’environnement sont, dans un milieu urbain en développement, des questions complexes. Cette complexité est engendrée par les différentes composantes du système pathogène à intégrer et les relations entre elles. À Antananarivo, nos analyses montrent que les disparités de santé en matière de risques hydriques sont le reflet d’une configuration sociale dichotomique héritée entre ville basse et ville haute et donc fortement imprégnée par les représentations. Comprendre les mécanismes à l’origine de ces disparités de santé, conduit à interroger les milieux de vie comme facteur risque, ici les quartiers précaires d’Antananarivo. Ces lieux sont soumis à des effets qui sont identifiés dans la littérature comme des effets de contexte (relatifs aux caractéristiques du territoire) et des effets de composition (relatifs aux caractéristiques des individus). À Antananarivo, l’approche quantitative confirme la prédominance des effets de contexte sur les effets de compositions. Pourtant, notre travail de terrain à travers la démonstration des pratiques et des compétences citadines mises en œuvre par les populations pour pallier, notamment les défaillances des services urbains de santé, de l’eau et de l’assainissement, nuance cette vision statique et déterministe des territoires enquêtés. En accord avec de récentes publications, cette recherche avec les difficultés que peuvent représenter les études un milieu urbain en développement, soutient qu’il existe une relation plus complexe et rétroactive entre les pratiques des populations et les territoires et que cette relation est en perpétuelle évolution. Les individus par leurs pratiques s’approprient et modifient la configuration des territoires et inversement. / The geographical study of the health risks related to water in Antananarivo, metropolitan capital of Madagascar, a tropical country with a low level development, is articulated through the access conditions to the water resources, the evaluation of supplied water quality and the domestic practices performed until its consumption. This thesis seeks to illustrate via the hydric determinant how complex are the issues at the intersection of health and environment in an urban developing area. This complexity is due to the integration of the various components of the pathogenic system and the connections between them. In Antananarivo, our analyses show that the disparities of health as regards hydric risks are the reflection of a dichotomic social configuration inherited between the lower and the upper city and thus strongly impregnated by the social representations. To understand the mechanisms at the origin of these disparities of health, life environment in the precarious districts of Antananarivo is studied as a risk factor. These places are subjected to effects which are identified in the literature like contextual effects (relating to the characteristics of the territory) and compositional effects (relating to the characteristics of the individuals). In Antananarivo, the quantitative approach confirms the predominance of the contextual effects over the compositional effects. However, our fieldwork moderates this static and deterministic vision of the surveyed territories through the observation of the coping strategies developed by the populations to mitigate the failures of the urban services of health, water and sanitation. In agreement with recent publications, this research, argues that it exists a more complex and retroactive relation between the practices of the populations and the territories. This relation is in perpetual evolution. The individuals by their practices adapt and modify the configuration of the territories and conversely.

Apresentamos dados e argumentos que indicam que: a) as crises epilépticas apresentadas por Trinomys yonenagae em campo e em cativeiro são espontâneas e idiopáticas; e b) elas podem ser decorrentes de processos evolutivos. A epilepsia nesta espécie foi caracterizada em cativeiro a partir de um cadastro iniciado há 16 anos, formado por progenitores e descendentes de seis colônias de T. yonenagae, coletados na Caatinga de Ibiraba (BA), e adultos (129,90 ± 5,92g) e filhotes nascidos em cativeiro num total de 295 indivíduos. A prevalência e a incidência em indivíduos epilépticos (EE) foram estimadas e as crises epilépticas foram analisadas por meio das manifestações comportamentais, baseando-se na escala de Racine. Aspectos da procriação (n=11), a locomoção, a ansiedade (testes de arena, n= 35) e índices fisiológicos (balanço hídrico-alimentar, n=6), importantes ao fitness, foram mensurados. Somente duas colônias apresentaram EE representando 9% e 28% dos nascimentos. Do total de indivíduos (165 e 130) 9,8% são EE (n=29; 14 e 15), sendo que as representam 52% e os 48%. A prevalência é de 20 a 30% e a incidência variou de 2 a 10 casos/ano, nos últimos cinco anos. As crises são observadas somente em adultos (n=24) a menor latência é de 13m e a frequência é variável (1 a 24 em seis anos). A maioria iniciou-se por congelamento e 50% atingiram o estágio 5 da escala de Racine. Em todos os casais, de 5 a 50% dos filhotes são EE e ocorreu estro pós-parto, como esperado para a espécie. Os filhotes são saudáveis e tanto a média de filhotes por ninhada (1,9±0,3), como a média do número de ninhadas por casal (6,5±5,0) é igual à de casais não epilépticos (NE). O teste de arena indica que descendentes de EE (DE) e as EE são menos ansiosas que as NE. Não há diferença entre os grupos dos índices fisiológicos estimados. A diferença no número de EE nas colônias, a alta prevalência e % de filhotes EE, e a diferença de comportamento das fêmeas DE indicam a base genética desta epilepsia. Neste contexto, consideramos que em Trinomys yonenagae, a epilepsia límbica não compromete o fitness, o que abre possibilidades de ser decorrente de processos evolutivos envolvendo o escalonamento de respostas de anti-predação / We present data and discuss the possibility that: a) the seizures presented by Trinomys yonenagae in the wild and in captivity are spontaneous and idiopathic, and b) they may be due to evolutionary processes. Epilepsy was characterized in this species in captivity from a survey started 16 years ago, made up of parents and descendants from six colonies of T. yonenagae collected in the Caatinga of Ibiraba (BA), and adults (129.90 ± 5.92 g) and pups born in captivity in a total of 295 individuals. The prevalence and incidence in individuals with epilepsy (EE) were estimated and seizures were analyzed by behavioral manifestations, based on Racine´s scale. Locomotion and anxiety indexes (open-field test, n = 35), as well as aspects of breeding (n = 11) and physiological indicators (balance food and water, n = 6), important to fitness were measured. Only two colonies showed EE, representing 9% and 28% of births. Approximately 10% of total individuals (165 and 130 ) are EE (n = 29, 14 and 15 ), and the represent 52 and 48%. In the last five years prevalence is 20-30%, and incidence ranged from 2 to 10 cases/ year. Seizures are only observed in adults (n = 24), the lowest latency is 13 months and the frequency is variable (1 to 24 in six years). The first stage is freezing and 50% reached stage 5 of Racine´s scale. In all couples, 5-50% of puppies are EE and occurred postpartum estrus, as expected for the species. The puppies are healthy and both the average offspring per litter (1.9 ± 0.3), as well as the average number of litters per couple (6.5 ± 5.0) is equal to values presented by non-epileptic couples (NE). The open-field test indicates that descendants of EE (DE) and EE are less anxious than NE. There is no difference between EE and NE regarding food and water intake. The difference in the number of EE in the colonies, the high percentage of EE pups, and the difference in the behavior of DE indicate the genetic basis of this epilepsy. In this context, we consider that in Trinomys yonenagae the limbic epilepsy seems to not compromise the fitness, which opens possibilities to be the result of evolutionary processes involving the escalation of antipredator responses

Made available in DSpace on 2016-04-29T14:16:12Z (GMT). No. of bitstreams: 1 Eugenia Aparecida Cesconeto.pdf: 3560455 bytes, checksum: 3c2456133bfe65be172c715fc49bc02f (MD5) Previous issue date: 2012-05-22 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The aim of this investigation was to clarify the role performed by the Managing Committees of the Itaipu Binational Cultivating Good Water Program and the management policies of the hydric resources integrated to the sanitation of São Francisco Verdadeiro River subbasin, in which environmental management is promoting the modification of the predatory practices, which strengthen the natural resources exhaustion. One of the objectives is to understand how the members of the managing committees participate of the democratic management process to access the water in the São Francisco Verdadeiro River subbasin by the Integrated System of Hydric Resources Management (SIGRH), guaranteeing the basic sanitation strengthening the social agreement necessary among the involved in this task (state and municipal governments and the citizens). Despite the efforts of the municipalities, little was altered in the environmental practices developed, which are developed with strong centralism, carrying traces of privativism and in a repressive way. Water: the difficult journey of preservation and access in the São Francisco Verdadeiro River Subbasin in Paraná, for its thesis elaboration the methodological resource study case was used, having interviews with the Committees members managing the Itaipu Binational Cultivating Good Water Program, with semi-structured interviews, primary sources analyses and bibliographical reference. It is widely recognized that the Cultivating Good Water Program, executed by the Managing Committees, has supplied the conditions and enough water for the generation of energy for Itaipu Hydroelectric Dam, but not as a socialization strategy and equal access to the water. Despite the contribution to the improvement of some life quality aspects of the population of São Francisco Verdadeiro River subbasin, the implementation of the interface of the hydric resources with the sanitation is not occurring, in which such hypothesis showed to be true / O tema desta investigação procura elucidar o papel desempenhado pelos Comitês Gestores do Programa Cultivando Água Boa, da Itaipu Binacional na gestão da política de recursos hídricos integrada à de saneamento na sub- bacia do Rio São Francisco Verdadeiro, que no processo de gestão ambiental buscam fomentar a modificação das práticas predatórias que potencializam o risco de exaurimento dos recursos naturais. Destaca-se como objetivo entender como os membros dos comitês gestores participam do processo de gestão democrática de acesso à água na subbacia paranaense do Rio São Francisco Verdadeiro, através do Sistema Integrado de Gerenciamento dos Recursos Hídricos (SIGRH), garantindo o saneamento básico, de modo a fortalecer o pacto social necessário entre todos os envolvidos nesta tarefa (governo estadual e municipal e a sociedade civil). Uma vez que, apesar dos esforços empreendidos pelos municípios, pouco se alteraram as práticas ambientais desenvolvidas, sendo realizadas com forte centralismo, com traços de privatismo e de cunho repressivo. Para elaboração da tese Água: o difícil percurso de preservação e acesso na subbacia paranaense do Rio São Francisco Verdadeiro, utiliza-se como recurso metodológico o estudo de caso, com entrevistas aos membros dos Comitês Gestores do Programa Cultivando Água Boa, da Itaipu Binacional pautadas em roteiros semiestruturados, análise de fontes primárias e acervo bibliográfico. Parti do pressuposto que o Programa Cultivando Água Boa, da Itaipu Binacional, executado através dos Comitês Gestores, tem, com certeza, fornecido as condições e a quantidade de água suficiente para a geração de energia para a hidrelétrica de Itaipu, mas não como estratégia de socialização e acesso igualitário à água, pois, apesar de ter contribuído para a melhora de alguns aspectos da qualidade de vida da população da subbacia paranaense do Rio São Francisco Verdadeiro, não vem ocorrendo a implementação da interface da política de recursos hídricos com o saneamento, hipótese que se mostrou verdadeira

Made available in DSpace on 2014-07-29T16:24:21Z (GMT). No. of bitstreams: 1 RICARDO FERNANDES.pdf: 1993075 bytes, checksum: 9fd3eb6ccef6337fadda8d38b2a10ec3 (MD5) Previous issue date: 2009-07-15 / The objective of this work was to study the soil of wetlands situated in conserved and altered environments (in agricultural and cattle areas), by determining the chemical attributes and texture of the soil. The study was carried through in the central region of Cerrado biome, in the state of Goiás, in wetlands situated in the City of Bela Vista de Goiás. There have been selected three wetlands for soil sampling: one conserved wetland, surrounded by natural vegetation (cerrado); one altered area, with occurrence of pasture in its adjacent areas; and another wetland, also altered, with the occurrence of agriculture in its adjacent areas. The samplings were taken in the months of April and May of 2008, through the use of lines of reference, according to their positions in the relief, in upper, average and lower position, following approximately the direction of the line of draining of the wetland. It has been collected samples in three depths: 0-10 cm; 10-20 cm and 20-40 cm. The variables studied have been: texture, pH in CaCl2 0.01 M; micronutrients (Cu, Fe, Mn, Zn and B), macronutrients (P, K, Ca, Mg and S), concentration of Al and potential acidity (H+Al), and soil organic matter content (SOM). It was verified that the clay percentages in the lower region of the relief are higher in altered environments and the percentage of silt are higher in the wetland adjacent to the agricultural area. In lower position of the relief, the concentrations of SOM are lesser in wetlands adjacent to the agricultural areas and pastures. In the conserved wetland the base saturation is higher in lower position of relief and, in this same position, the acidity (pH) and the aluminum concentration is lesser than that in the average and upper positions, occurring the inverse in farming landscapes. / Este trabalho objetivou estudar os solos de áreas úmidas (veredas) situadas em ambientes conservados e antropizados (em áreas agrícolas e de pecuária), por meio da determinação de atributos químicos e textura do solo. O estudo foi realizado na região nuclear do bioma Cerrado, no estado de Goiás, em veredas situadas no município de Bela Vista de Goiás. Foram selecionadas três veredas para amostragem de solo, sendo: uma vereda conservada, circundada por vegetação natural (cerrado); uma área antropizada, com ocorrência de pastagem em seu entorno; e uma outra vereda, também antropizada, com a ocorrência de culturas anuais (agricultura) em seu entorno. As coletas foram feitas nos meses de abril e maio de 2008, ao longo de linhas de referência dispostas, segundo sua posição no relevo, nos terços superior, médio e inferior de uma das vertentes, acompanhando de modo aproximado o sentido da linha de drenagem da vereda. Foram colhidas amostras em três profundidades: 0-10 cm; 10-20 cm e 20-40 cm. As variáveis estudadas foram: textura, pH em CaCl2 0,01 M; micronutrientes (Cu, Fe, Mn, Zn e B), macronutrientes (P, K, Ca, Mg e S), teor de Al e acidez potencial (H+Al) e teor de matéria orgânica do solo (MOS). Verifica-se que os teores de argila na região inferior do relevo são maiores em ambientes antropizados e os teores de silte são maiores na vereda adjacente à área agrícola. No terço inferior do relevo, os teores de MOS são menores em veredas adjacentes a pastagens e áreas agrícolas. Na vereda conservada a saturação por bases é maior no terço inferior e, nessa mesma posição, a acidez e o teor de alumínio são menores do que nos terços médio e superior, ocorrendo o inverso em ambientes agropecuários.

Made available in DSpace on 2016-04-28T14:58:35Z (GMT). No. of bitstreams: 1 2006-Joao Batista Alves Pereira.pdf: 1832144 bytes, checksum: 36798c7d302cc3a5d500e230c9f5af03 (MD5) Previous issue date: 2006-02-21 / Evaluation of the vegetal growth, hydric necessity and water use efficiency by bell pepper crop (Capsicum annum. L.) under organic management in system of seeding with prepare soil and no till cropping system. This work was conducted in the experimental area of SIPA (Integrated system of agro ecological production), at the county of Serop?dica RJ, with the aim of valuate the growth , the water needs, and the efficiency of the use of the water by the bell pepper culture (Capsicum annuum. L ), at the conventional (PC) and the direct systems of soiling. The conventional system consisted of soil prepare with rotational hoe tied to a micro tractor, and the direct soiling, being done after the occupation of the area with a combination of Sorghum bicolor and Crotal?ria acroleura, that was grazed at the transplantation of the bell pepper s seedlings without previous soil preparation. The same fertilization and cultural practices permitted by the agro ecological handling, was used in both systems. The two systems tested, received sprinkler irrigation, and the determination of the water s blade, was made by monitoring with TDR (Time Domain Reflectometry), calibrated for the soil conditions of the experimental area. The splits were also monitorated by a tensiometer at a 50 cm. deep. Collects were made at intervals of 14 days, with the aim of foliar area evaluation, biomass accumulation by the parts of the plant, along the entire cycle, being also evaluated the crop production at the two systems of soiling. By the adjustment of the IAF (Foliar Area Indices ) and the biomass accumulated by the plant at the two systems of planting in function of accumulated day-degree (GDA), was verified that 1533 GDA was necessary to complete the productive cycle, reaching the top of accumulated biomass at 1059 and 1148 GDA, at PC and PD respectivement. There were no differences between the systems of planting, in respect of the growth rate and the productivity, however the PD system gave less competition between spontaneous vegetation and the bell pepper crop, reducing in 60% the necessity of hand labor at the firsts weddings. The PD system raise the efficiency of the use of water (EUA) by the crop reducing in 47,5 mm. the blade applied during its cycle, in relation of PC. The irrigation handling using TDR, provide an meaning EUA of 4,4 Kg.m-3, above the means of 1,5 to 3,0Kg.m-3, recommended by Doorenbos & Kassam (1994). The culture coefficients (Kc) recommended for the bell pepper crop, were evaluated together with the calculated coefficients using some methodologies proposed in this work, and was noted that the estimated Kc s values of the production cycles (ETc cycle) and by the Kc curve (graphic ETc) estimated during the culture cycle, were more appropriated for the calculation of the evapotranspiration of the crop. The estimation of reference evapotranspiration (ETo), by the pan class A method, made possible means close to those estimated by the Penman-Monteith model witch is recommended by FAO as standard. Therefore, the pan class A method, can be utilized in the estimated ETo, at same conditions of the experiment when there are no data of climate for the Penman-Monteith model use. Associated tensiometry and TDR for irrigation management, showed to be an essential practice when looking for raising the efficiency of the use of water. / Este trabalho foi realizado na ?rea experimental do SIPA (Sistema Integrado de produ??o Agroecol?gica), localizada no munic?pio de Serop?dica-RJ, com o objetivo de avaliar o crescimento, as necessidades h?dricas e a efici?ncia no uso da ?gua pela cultura do piment?o (Capsicum annuum. L), nos sistemas de plantio convencional (PC) e direto (PD). O sistema convencional consistiu de preparo de solo com enxada rotativa acoplada a micro-trator e o plantio direto, na ocupa??o da ?rea com pr?-cultivo, utilizando o cons?rcio Sorghum bicolor e Crotal?ria acroleura, os quais foram ro?ados por ocasi?o do transplante das mudas de piment?o, sem o preparo pr?vio do solo. Em ambos os tratamentos a cultura recebeu a mesma aduba??o de cova e tratos culturais permitidos pelo manejo agroecol?gico. Nos dois sistemas de plantio a cultura foi irrigada por aspers?o, e a determina??o das l?minas aplicadas, foi realizada atrav?s do monitoramento com TDR (Reflectometria no dom?nio do tempo), calibrado para as condi??es de solo da ?rea experimental. As parcelas foram monitoradas tamb?m por tensi?metro no perfil de 50cm de profundidade. Foram realizadas coletas em intervalos de 14 dias com a finalidade de avaliar a ?rea foliar e acumulo de biomassa pelas partes da planta, durante todo o seu ciclo, sendo avaliado tamb?m a produ??o pela cultura nos dois sistemas de plantio. Por meio do ajuste do IAF e da biomassa acumulada pela planta nos dois sistemas de plantio em fun??o de graus-dia acumulado (GDA), constatou-se que s?o necess?rios 1533 GDA para que a planta complete o seu ciclo produtivo, atingindo o m?ximo de biomassa acumulada aos 1059 e 1148 GDA, no PC e PD, respectivamente. Os sistemas de plantio n?o diferiram significativamente entre si com rela??o ?s taxas de crescimento e produtividade, entretanto o plantio direto proporcionou menor competi??o da vegeta??o espont?nea com a cultura, reduzindo em 60 % a necessidade de m?o-de-obra nas primeiras capinas. O PD aumentou a efici?ncia no uso da ?gua (EUA), pela cultura, reduzindo em 47,5mm a l?mina aplicada durante o seu ciclo, em rela??o ao PC. O manejo da irriga??o utilizando o TDR, proporcionou a EUA m?dia de 4,4kg.m-3, acima dos valores 1,5 a 3,0kg.m-3 propostos por Doorenbos e Kassam (1994). Os Coeficientes de cultivo (Kc) recomendados para a cultura, foram avaliados juntamente com os calculados por v?rias metodologias propostas neste trabalho, verificando-se que os valores de Kc estimados em fun??o dos ciclos de produ??o (ETc ciclo) e pela curva de Kc (ETc gr?fico) estimados durante o ciclo da cultura, se mostraram mais adequados ao c?lculo da evapotranspira??o da cultura. A estimativa da evapotranspira??o refer?ncia (ETo), pelo m?todo do tanque classe A , possibilitou valores pr?ximos aos estimados pelo modelo de Penman-Monteith recomendado pela FAO como padr?o. Portanto o m?todo do tanque classe A poder? ser utilizado na estimativa da ETo, em condi??es semelhantes a do experimento, quando n?o houver disponibilidade de dados clim?ticos para o uso do modelo de Penman- Monteith. O uso da tensiometria associado ao TDR no manejo de irriga??o revelou ser uma pr?tica indispens?vel, quando se almeja aumentar a efici?ncia no uso da ?gua.

La conception et la vérification du dimensionnement des structures en bois, pour une utilisation en Génie Civil, est régie par la norme Européenne Eurocode 5. Elle permet de dimensionner tout élément de structure en fonction du chargement qui lui est appliqué et d’hypothèses relatives à son environnement. Coordonnée particulièrement par la filière bois des pays Nordiques, cette norme est basée sur l’emploi exclusif de résineux. Or, la France détient la plus grande forêt de feuillus d’Europe. Ces essences ont leur place dans les structures bois d’aujourd’hui en apportant, par exemple, des propriétés de durabilité naturelle. Malheureusement, ces essences ne sont pas aujourd’hui considérées dans les règles de dimensionnement.Le projet EFEUR5, financé par l’agence nationale de la recherche, a pour objectif de répondre à cette problématique en effectuant des travaux similaires à ceux déjà réalisés pour les résineux. Ainsi, les travaux présentés ont pour objectifs de comprendre et de modéliser le comportement mécanique différé des essences de feuillus français que sont le chêne, le hêtre et le peuplier. A ces trois essences, est rajouté le douglas comme essence de référence des résineux.Nous commençons l’étude par l’analyse microscopique de la structure anatomique des essences étudiées. Cette analyse a pour objectif de mettre en avant les différences entre ces quatre essences. Le comportement mécanique différé du bois étant sensible à l’humidité de celui-ci, nous devons dans un premier temps déterminer l’évolution de l’humidité dans la section d’un élément de structure. Pour cela, il est présenté dans le second chapitre un protocole expérimental innovant de détermination des propriétés de diffusion d’une éprouvette située en extérieur. L’identification des propriétés de diffusion effectuée, nous proposons une étude de sensibilité des écarts de comportement hydrique sur un élément de structure.Le comportement mécanique long terme est ensuite étudié par une approche couplée entre expérimentation et modélisation. Différents comportements mécaniques dépendant du temps et de l’humidité sont pris en compte et hiérarchisés. L’implémentation, dans un logiciel aux éléments finis, de l’évolution du champ hydrique 3D au sein d’un élément de structure, ainsi que des différents phénomènes physiques mis en jeu lors du fluage sont discutés. Par la suite, la conception de deux bancs de flexion quatre points à l’échelle métrique des poutres de feuillus et de douglas est détaillée. Les mesures réalisées sur plus d’une année permettent dans un premier temps d’identifier les principaux comportements. Dans un second temps, ces données permettent de déterminer les propriétés viscoélastiques hygro activées par analyse inverse. Ainsi une comparaison des propriétés viscoélastiques entre ces quatre essences est présentée.Enfin, dans la dernière partie, les modèles développés et validés sont mis en forme pour une approche technologique. De nouveaux abaques d’équilibre d’humidité interne sont proposés essence par essence. Une méthodologie de détermination du coefficient kdef est proposée, et permet, par une relation très simple, d’affiner sa détermination en fonction de l’environnement réel, de la section, et de l’humidité initiale. / The design and verification of timber structures, for use in Civil Engineering, is governed by the European standard Eurocode 5. It allows to size any structure element according to the load applied to it and assumptions about its environment. Essentially coordinated by the Nordic timber industry, this standard is based on the exclusive use of softwoods. However, French country has the largest hardwood forest in Europe. Today, these species have their place in timber structures by considering, for example, natural durability properties. Unfortunately, these species are not today considered in design rules. The EFEUR5 project, funded by the National Research Agency, aims to respond to this problem by doing work like those already carried out for softwoods. Thus, the work objectives are for understanding and modeling the long-term mechanical behavior of French hardwood species like oak, beech and poplar. In support of these species, Douglas fir is added as the conifer reference.The study starts with the anatomical structure analysis of the of the species studied. The objective of this analysis is to highlight the differences between these four species. Because the long-term mechanical behavior depends on moisture content, we must first determine the evolution of moisture in the section of a structural element. For this, it is presented in this chapter an innovative experimental protocol for determining the diffusion properties of a test tube located outdoors. The identification of the diffusion properties carried out we propose a study of the sensitivity of the water behavior differences on a structural element.The implementation of the evolution of moisture within a structure element, regardless of its geometry and environment, we present the different physical phenomena involved when creeping a structural element and their implementation in a code with finite elements. Next, we describe the completion of two four-point bending benches at the metric scale of hardwood and Douglas-fir beams. The instrumentation allows to analyze their deferred behavior according to their environment. In a second step, these numerical data are used to determine the hydro viscoelastic properties enabled, by inverse analysis. Thus, a comparison of the viscoelastic properties between these four species is presented.We conclude this study with a proposal for a new approach for considering the delayed mechanical behavior of structural elements. The approach consists in the determination of the long-term behavior through a reference behavior. The prediction of long-term deflection is then defined from the average humidity of the study element. This approach makes it possible to report both the geometry of the beam and its initial humidity.

Eucalyptus plantations have increased significantly in recent times, but the productivity of forests are very sensitive to the availability of natural resources such as water, nutrients and light. In order to assess the water dynamics and characterize water flows in soil in a eucalyptus plantation in replacement of native grassland, there was a study in the city of São Francisco de Assis, RS, located in the “Bioma Pampa. Different densities were evaluated: 3,5x3,5m; 3,5x1,75m; 1,75x1,75m and 1,75x0,75m. The overall distribution of rainfall internal precipitation, straining the trunk interception losses of the canopy the and soil volumetric water content were evaluated during a period of one year. Three pluviometers were installed in the field area to measure and collect global precipitation. To measure the internal precipitation, 36 pluviometers were installed inside the plantation and 36 collectors were used (in selected trees) to determine the stemflow. The soil volumetric water content was monitored continuously to a depth of 2.10 m, using an automated TDR. The evapotranspiration was determined by the water balance equation, using the mass conservation method. The relationship between the biomass increase and the water amount transpired in different planting spacing, allow estimating the efficiency of water use by eucalyptus trees. The effective rainfall is higher in a narrower spacing plant, due to the increased water intake by stemflow, which results in lower treetop interception. The interception rate is lower in higher rainfall and decreases with increasing density of trees in the settement. The average evapotranspiration ranged from 4.0 to 4.5 mm day-1, with similar values among different planting spacings and is reduced in low-rainfall periods. There were no adverse effects on water resources and soil water regime due to the eucalyptus replacing natural herbaceous vegetation reforestation in Pampa Biome, evidenced by the soil water content that never was less than the value of permanent wilting point (1.5MPa). The water efficient use of Eucalyptus dunnii with 6 years old in the “Pampa biome” region varies from 3.27 to 2.40 g L-1. / As plantações de eucalipto vêm aumentando significativamente nos últimos tempos, porém a produtividade das florestas são muito sensíveis à disponibilidade de recursos naturais como água, nutrientes e luz. Com o objetivo de avaliar a dinâmica da água e caracterizar os fluxos hídricos no solo em uma povoamento de eucalipto em substituição à vegetação de campo nativo, realizou-se um estudo no município de São Francisco de Assis, Rs, localizado no Bioma Pampa. Foram avaliadas diferentes densidades populacionais: 3,5x3,5m; 3,5x1,75m 1,75x1,75m; 1,75x0,75m. Durante o período de um ano foram avaliados a distribuição da precipitação global em precipitação interna, o escoamento pelo tronco, as perdas por interceptação do dossel, bem como o conteúdo volumétrico de água no solo. Três pluviômetros foram instalados na área de campo para medir e coletar a precipitação global. Para medir a precipitação interna, 36 pluviômetros foram instalados no interior do plantio e 36 coletores foram utilizados (em árvores selecionadas) para determinar o escorrimento pelo tronco. O conteúdo volumétrico de água do solo foi monitorado continuamente até a profundidade de 2,10m, utilizando-se sondas e TDR automatizado. A evapotranspiração das árvores foi determinada pela equação do balanço hídrico, através do método da conservação de massas. A relação entre o incremento da biomassa aérea e o volume de água evapotranspirada nos diferentes espaçamentos de plantio, permitiu estimar a eficiência do uso da água pelas árvores de eucalipto. A precipitação efetiva é maior em espaçamentos mais adensados, em função da maior entrada de água pelo escoamento pelo tronco, o que resulta em menor interceptação pelas copas das árvores. A taxa de interceptação é menor em precipitações maiores e diminui com o aumento da densidade de árvores no povoamento. A evapotranspiração média variou de 4,0 a 4,5mm/dia, com valores muito próximos entre os diferentes espaçamentos sendo reduzida nas épocas de menor precipitação. Não houve nenhum efeito adverso sobre os recursos hídricos e o regime da água do solo em decorrência do reflorestamento de eucalipto em substituição da vegetação herbácea natural no Bioma Pampa, comprovado pelo conteúdo de água no solo, nunca foi inferior ao valor do ponto de murcha permanente (1,5Mpa). O uso eficiente da água para Eucalyptus dunnii de 6 anos de idade na região do Bioma Pampa varia de 3,27 a 2,40 g L-1, com os maiores valores no espaçamento mais amplo.

Submitted by Rafael Giovanelli (rafael.giovanelli@gvmail.br) on 2015-05-26T17:11:09Z No. of bitstreams: 1 GIOVANELLI, Rafael. DISCURSOS DE DESENVOLVIMENTO NO SUPREMO TRIBUNAL FEDERAL - A PARTICIPAÇÃO INDÍGENA NA AUTORIZAÇÃO PARLAMENTAR PARA O APROVEITAMENTO HIDRELÉTRICO BELO MONTE.pdf: 3672309 bytes, checksum: 7a50d26825dda5d58324e3ba9f815947 (MD5) / Rejected by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br), reason: Boa tarde Rafael, Sua dissertação não está de acordo com as normas ABNT. Modelo não na Biblioteca Digital. Primeira página em branco.... Getulio não tem acento. Aguardo! Att. Suzi on 2015-05-26T17:15:46Z (GMT) / Submitted by Rafael Giovanelli (rafael.giovanelli@gvmail.br) on 2015-05-26T23:56:35Z No. of bitstreams: 1 GIOVANELLI, Rafael. DISCURSOS DE DESENVOLVIMENTO NO SUPREMO TRIBUNAL FEDERAL - A PARTICIPAÇÃO INDÍGENA NA AUTORIZAÇÃO PARLAMENTAR PARA O APROVEITAMENTO HIDRELÉTRICO BELO MONTE.pdf: 3642188 bytes, checksum: 351d47cc9d81a265c3b2d1b5b28bc811 (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2015-05-27T11:23:07Z (GMT) No. of bitstreams: 1 GIOVANELLI, Rafael. DISCURSOS DE DESENVOLVIMENTO NO SUPREMO TRIBUNAL FEDERAL - A PARTICIPAÇÃO INDÍGENA NA AUTORIZAÇÃO PARLAMENTAR PARA O APROVEITAMENTO HIDRELÉTRICO BELO MONTE.pdf: 3642188 bytes, checksum: 351d47cc9d81a265c3b2d1b5b28bc811 (MD5) / Made available in DSpace on 2015-05-27T12:46:36Z (GMT). No. of bitstreams: 1 GIOVANELLI, Rafael. DISCURSOS DE DESENVOLVIMENTO NO SUPREMO TRIBUNAL FEDERAL - A PARTICIPAÇÃO INDÍGENA NA AUTORIZAÇÃO PARLAMENTAR PARA O APROVEITAMENTO HIDRELÉTRICO BELO MONTE.pdf: 3642188 bytes, checksum: 351d47cc9d81a265c3b2d1b5b28bc811 (MD5) Previous issue date: 2015-04-16 / At this research we have studied the judicial conflict around Belo Monte´s Dam, judged by Supremo Tribunal Federal (the Brazilian Supreme Court), to understand the relations between discourses of development and constitutional interpretation, in specific, article 231, 3rd paragraph. Our hypothesis was: interpretations that reduced indigenous people´s rights and imposed few condition to the exercise of discretion by public powers would be followed by discourses of development worried about economic growth; on the other hand, interpretation that recognized the indigenous people´s rights to political participation and imposed wide conditions to the exercise of discretion by public powers would not be followed by any discourse of development. Our conclusion partially confirmed our initial hypothesis, as follows: first, there seems to be a trend to less conditions to the exercise of discretion by public powers and reduced rights recognized to indigenous people when discourses of development appears; however, some discourses of development were followed by constitutional interpretations that recognized rights to indigenous people and that imposed wide conditions to the exercise of discretion by public powers. / Nesta pesquisa estudamos o caso Belo Monte – entendido como a disputa judicial sobre o Aproveitamento Hidrelétrico Belo Monte, travada no Supremo Tribunal Federal –, para saber se existe uma relação entre os discursos de desenvolvimento mobilizados pelas partes litigantes e pelo STF e a interpretação dada por esses atores para o parágrafo 3º do artigo 231 da Constituição Federal de 1988. Partimos da seguinte hipótese: interpretações que restringem os direitos de participação política dos povos e comunidades indígenas e que impõem poucas condições para o exercício da discricionariedade dos Poderes da União são acompanhadas por discursos preocupados com o desenvolvimento econômico; interpretações que reconhecem amplo direito de participação política para povos e comunidades indígenas e que impõem maiores condições para o exercício da discricionariedade dos Poderes da União não são acompanhados por discursos de desenvolvimento. Confirmando parcialmente nossa hipótese, chegamos à seguinte conclusão: em primeiro lugar, parece existir uma tendência para que, quando mobilizados discursos de desenvolvimento, a interpretação dada ao parágrafo 3º do artigo 231 da Constituição Federal imponha menos condições para o exercício da discricionariedade dos Poderes da União e reduza, ou desconsidere, os direitos de participação política dos povos e comunidades indígenas; por outro lado, alguns discursos de desenvolvimento foram mobilizados num sentido aposto, e serviram tanto para afirmar os direitos políticos de povos e comunidades indígenas, quanto para impor mais condições para o exercício da discricionariedade dos Poderes da União.

Submitted by Moara Almeida Canova Teixeira null (moaraambiental@gmail.com) on 2017-06-26T01:28:44Z No. of bitstreams: 1 Dissertacao_Final_Moara.pdf: 3458445 bytes, checksum: dabb75ae556a606d8bbd0c78376f59b3 (MD5) / Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-06-28T16:37:18Z (GMT) No. of bitstreams: 1 teixeira_mac_me_rcla.pdf: 3458445 bytes, checksum: dabb75ae556a606d8bbd0c78376f59b3 (MD5) / Made available in DSpace on 2017-06-28T16:37:18Z (GMT). No. of bitstreams: 1 teixeira_mac_me_rcla.pdf: 3458445 bytes, checksum: dabb75ae556a606d8bbd0c78376f59b3 (MD5) Previous issue date: 2016-09-15 / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / O Brasil encontra-se na posição de grande produtor e exportador de commodities agrícolas, ao passo que é uma potência mundial em termos de biodiversidade e recursos hídricos. Com o uso e ocupação do solo em franca intensificação, torna-se cada vez mais importante direcionar atenções para potenciais sinergias entre a exploração agrícola e a proteção ambiental através do conceito de Serviços Ambientais (SA). Logo, instrumentos econômicos como o Pagamento por Serviços Ambientais (PSA) configuram-se como uma alternativa de assegurar a manutenção de processos ecológicos concomitante à atividade agropecuária. Desta forma, a nova versão do Código Florestal Brasileiro (CFB nº 12651/2012) da Legislação Ambiental Brasileira (LAB), prevê pagamento ou incentivos à conservação dos ecossistemas que forneçam serviços, entretanto, o texto desta nova lei deixa lacunas quanto aos mecanismos de implementação. Com base nestes aspectos, esse trabalho aborda em três capítulos questões sobre SA e PSA, cujo primeiro é uma apresentação geral do tema e da metodologia base utilizada nos capítulos seguintes. O capítulo 2 inicia a investigação dos serviços de maior relevância fornecidos nas áreas de produção de cana-de-açúcar e de alimentos (dentro do Cinturão de cana-de-açúcar), pela perspectiva dos agricultores destes dois grupos. Como resultado, evidencia-se que ambos os grupos apresentam perspectivas de sinergia, mas também distinções significativas quanto à percepção sobre os serviços ambientais fornecidos nas diferentes paisagens. Os serviços de regulação climática local e manutenção da água são importantes para o desenvolvimento agrícola, bem-estar da população urbana e dos agricultores de modo geral. Enquanto a polinização, dispersão de sementes e controle de pragas foram reconhecidos apenas pelos produtores das unidades rurais de alimentos. Posto isto, a visão política dos produtores e tomadores de decisão do município de Rio Claro-SP, referente à operacionalização dos SA, convergiu em pagamentos destinados à preservação de remanescentes florestais de custódia obrigatória (i.e Área de Preservação Permanente-APP e Reserva Legal-RL), a fim de proteger os mananciais. No entanto, houve conflito de opiniões entre os atores em caso de o poder público decidir implementar esquemas de PSA que contemplem apenas produtores com déficits de APP e RL em detrimento daqueles que sempre estiveram de acordo com a LAB, o que caracterizaria futuras externalidades sociais e econômicas negativas no contexto de política pública. Por fim no capítulo 3, a comparação de experiência de PSA entre Brasil e Escócia, mostrou que a integração dos objetivos das políticas públicas agrícolas, ambientais e de desenvolvimento econômico, com um fundo de financiamento comum e claro, ajuda atenuar processos burocráticos de gestão orçamentária e conflito entre pagadores e beneficiários em projetos de PSA locais. Diante de toda a avaliação da pesquisa, conclui-se que a abordagem participatória de estudo, ou seja, que envolve diversos atores sociais dentre eles o corpo científico, possibilitou compreender as diferentes perspectivas dos atores em nível local, seja de produção agrícola em grande escala (cana-de-açúcar) quanto na escala familiar de alimentos e de tomada de decisão para as exigências de SA nacionais. Dessa forma, evidenciou-se a necessidade de várias e complexas etapas para operacionalização de SA e sua possibilidade na gestão dos recursos naturais, diante da situação de expansão de commodities agrícolas e acelerada perda de serviços ambientais. Portanto, o estudo se faz relevante para elaboração de políticas públicas voltadas a implementação de PSA, no contexto de desenvolvimento agrícola e paisagens degradadas. / Brazil is a major producer and exporter of agricultural commodities and a world power in terms of biodiversity and water resources. With the ongoing process of land-use intensification, it becomes increasingly important to investigate and promote potential synergies between agriculture and natural resources conservation, mostly represented through the concept of Ecosystem Services (ES). Therefore, economic instruments such as Payment for Environmental Services (PSA) are an alternative to ensure the maintenance of ecological processes concomitant to agricultural activity. The new version of the Brazilian Forest Code (BFC nº 12651/2012) of the Brazilian Environmental Legislation (BEL) predicts payment or incentives for the conservation of ecosystems that provide services. However, the text of this law leaves gaps regarding implementation mechanisms. Based on these aspects, this dissertation addresses three chapters on ES and PES, the first of which is a general presentation of the theme and the methodology used in the following chapters. The chapter 2 begins the investigation of the services the most relevance provided in the areas of sugarcane and food production in Rio Claro (inside sugarcane belt in São Paulo state), according farmers’ perspective of these two groups. As results, both groups show perspectives of synergy, but also significant distinctions regarding the perception on the ES provided in the different landscapes. The services relative to local climate regulation and water maintenance are important for agricultural development, farmers and urban population well-being, overall. While pollination, seed dispersal and pest control were services recognized only by food farmers. Therefore, political point of view of farmers and decision-makers from Rio Claro municipality, referring to the operationalization of the SA, converged in payments destined to the preservation of forest remnants of compulsory custody (i.e. Permanent Preservation Area-PPA and Legal Reserve- LR) in order to protect the water springs. Therefore, political point of view of farmers and decision-makers from Rio Claro municipality, referring to the operationalization of the ES converged in payments destined to the preservation of forest remnants of compulsory custody (i.e. Permanent Preservation Area-PPA and Legal Reserve- LR) in order to protect the water springs. Nevertheless, there were opinion conflicts among the actors, supposing that public authorities decide to implement PES schemes that only contemplate producers with PPA and LR deficits, in detriment of those who have always been in agreement with LAB. This, in turn, cam characterize social and economic externalities in the context of public policy. Finally, in chapter 3, the comparison of PES experiences between Brazil and Scotland showed us that, the integration of agricultural, environmental and economic public policy with a common and clear financing fund helps to attenuate bureaucratic processes of budgetary management and reduces the conflicts between payers and beneficiaries in local PES projects. In additional, it was concluded which, the study participatory approach, involving several social actors, among them the scientific body, made possible to comprehension of the different actor’s perspective at the local level either agricultural of large-scale (sugarcane) or familiar scale (food production), as well as, of decision making for national ES requirements. Thus, the study demonstrates need of various and complexes steps to ES operationalization and its possibility in the management of natural resources, in reason of the expansion of agricultural commodities, as well as, in local where there is accelerated loss of ES. Therefore, the study is relevant for the elaboration of public policies aimed at the implementation of PES in the context of agricultural development and degraded landscapes. / FAPESP: 2014/08345-5