This research examines the lowland lama (Diospyros)/kauila ( Colubrina ) dry forest community subtype that exists from Ka'upulehu to Pu'uwa'awa'a. Known threats to this forest community include ranching, invasive grasses, and fire. However, impacts from Hawaiians living in the area from 1600-1800 have never been identified. This research also attempts to quantify the importance of the trees and shrubs of this dry forest ecosystem to Hawaiian cultural traditions, and to add a new description of Hawaiian ethnobotany. Trees used in the construction of houses and double hull canoes were compared to observations of houses and double hull canoes during the time of Kamehameha I from 1775-1796. The number of trees used during this period may indicate large-scale habitat modifications and extraction by Hawaiians in the North Kona region of Hawai`i Island. This region of North Kona was important to events that took place during the time of King Kamehameha (Pai`ea) from 1775-1796. The area was a location for coastal fishing, and farming of sweet potatoes. An ethnobotanical survey was conducted of the types of woods needed to construct chiefly kauhale (housing compounds) and double hull canoes that were integral to the success of Kamehameha's reign. The species and the sizes of branches and trunks were estimated to determine the amount of native hardwoods necessary to complete the known number of kauhale and war canoes that Kamehameha possessed. The population structure of the lama/kauila lowland dry forest was estimated from a fenced exclosure at Ka'upulehu that has been ungulate free for the past 39 years. The species in this exclosure were compared with botanical inventories of Pu'uwa'awa'a to the north and at the same elevational gradient. The extent of the Lowland Dry Forest in North Kona was estimated through this comparison with particular emphasis to the Lama (Diospyros )/Kauila (Colubrina) Dry Forest type.

Extending Nepal's community forestry programme and its protected area network into lekh forests has been hampered by the assumption that people who live in or near lekh forests treat them as unregulated open access resources. This study tests this assumption by examining the interaction between local people and forests in two lekh areas of the central Middle Hills. The research is comprised of an action research approach, a theoretical framework of ecological anthropology that was also informed by forestry science, and tools and methods drawn from ethnographic fieldwork and rapid rural appraisal. The belief that lekh forests are treated as unregulated open access is challenged by demonstrating that there are clearly defined local use rights to lekh forests. Access to forest resources is regulated by forest users and relatively sophisticated and dynamic indigenous systems of forest management have been developed. The potential for implementing community forestry in the two lekh areas was explored by incorporating an element of action research in the study. A number of challenges are highlighted for the Nepal government to facilitate the improved management and conservation of lekh forests while ensuring an equitable flow of benefits to the people who depend on these forests. / Doctor of Philosophy (PhD)

Os objetivos do presente trabalho foram avaliar o potencial de acúmulo de carbono (C) em solos de cerrado sob diferentes usos florestais (Eucalyptus, Pinus versus vegetação natural) e as possíveis alterações ocorridas na ciclagem de nutrientes sob esse tipo de coberturas. Para isso, foram coletadas 30 amostras de solo (0-5, 10-25 e 35-50 cm) e de serrapilheira acumulada em plantios de Eucalyptus, Pinus e remanescentes de cerradão em quatro municípios do estado de SP, nas quais se determinou: pH, matéria orgânica (MO), C, macronutrientes e densidade, além da granulometria no solo. Os estoques de C do solo foram calculados através do ajuste e integração de equações exponenciais, obtendo-se valores entre 3,4 e 8,6 kgC.m-2.(na camada de 0 a 30 cm) e entre 5,7 e 11,3 kgC.m-2.(até 1m). Os resultados mostraram que a silvicultura de Eucalyptus e Pinus afeta o acúmulo de C e a ciclagem de nutrientes em áreas de cerrado. As alterações nos estoques de C ocorreram principalmente nos horizontes orgânicos e na camada superficial do solo em decorrência da substituição da MO original por outra de pior qualidade química. A influência do tipo de vegetação sobre o C da camada superficial do solo variou em função de características do sítio, verificando ganhos em alguns dos locais estudados, perdas em outros e ainda diferenças não significativas. Em profundidades maiores, o conteúdo de C mostrou-se fortemente relacionado com o teor de argila e diminuiu sob cultura de Eucalyptus e Pinus, sendo mais fortes as depleções sob Pinus. Nos plantios houve formação de horizontes orgânicos espessos, com concentrações de C elevadas. A concentração de nitrogênio (N), cálcio, magnésio e potássio do material aí acumulado foi menor do que nas áreas naturais, enquanto que a acidez e a relação C/N foram maiores. Isso pode inibir a decomposição, o que explicaria o maior armazenamento de C na serapilheira. A incorporação desse material ao solo implica em alterações da MO, que é um dos principais fatores de estruturação e fertilidade dos solos tropicais e foi afetada em quantidade e qualidade. As relações C/N quantificadas na camada superficial do solo foram significativamente maiores do que em áreas de vegetação natural, indicando substituição da MO nessa camada no tempo de vida dos plantios (~40 anos). Os resultados demonstram a ocorrência de alterações na qualidade química da MO na serapilheira e no solo superficial sob uso silvicultural, as quais podem originar maiores estoques e tempos de residência do C, mas também diminuições de recursos tróficos para a comunidade decompositora, com implicações no resto do ecossistema. Os resultados sugerem que a dinâmica do carbono do solo varia ao longo do perfil, sendo necessário esclarecer melhor os fatores que definem o carbono da camada superficial, maior em quantidade e mais sensível aos efeitos do manejo. / Effects on soil organic carbon storage potential and possible biogeochemical changes of established forest plantations were assessed in southeast Brazil, in Eucalyptus and Pinus plantations compared with natural areas of native dry forest (cerradão). 30 plots were randomly distributed for soil (0-5, 10-25 and 35-50 cm) and forest floor litter collection in mature plantations (~40 years old) and adjacent native forest. The design was replicated in 4 localities in Sao Paulo, southeast Brazil. Organic matter, organic carbon, macro nutrients, pH, density, and soil texture were determined. Soil organic carbon stocks were calculated through exponential equations adjustment and integration, values ranged from 3,4 to 8,6 kgC.m-2.(on the 0 and 30 cm layer) and from 5,7 to 11,3 kgC.m-2.(up to 1m). Soil organic carbon and biogeochemical features were affected under Eucalyptus and Pinus plantations. Changes in carbon stocks were stronger in organic layers and topsoil, due to the replacement of the original organic matter, causing chemical quality decrease. Effects of vegetation on topsoil organic carbon were site dependent, as plantations results in gains, losses and no remarkable differences between natural and forested areas. Eucalyptus and Pinus establishment led to organic carbon losses, which possibly conducted by soil disturbances at implementation of plantations. Carbon content was strongly related to clay at deeper layers, but not at shallower ones. Thicker organic layers with higher carbon content were found under plantations. Lower calcium, magnesium and potassium concentrations and higher acidity and C/N (carbon to nitrogen) ratios were measured at implanted forest floor litter layers. These changes could inhibit decomposition, explaining larger litter carbon storage. Soil organic matter is an important factor in maintaining tropical soil structure and fertility. It was affected by Eucalyptus and Pinus forestation. While litter organic mater is incorporated into the soil, it leads to soil organic matter chemical quality decreases. The topsoil C/N ratio measured in plantations was significantly higher than in natural vegetation areas, indicating organic matter replacement on this layer in plantations lifetime (~40 years). We concluded that litter and topsoil organic matter chemical properties were affected by forestation with Eucalyptus and Pinus, which could result in larger C stocks and residence times, but could also decrease trophic resources for decomposers, with implications on the whole ecosystem. The results suggest that soil carbon dynamics changes along the soil profile. Factors controlling surface soil carbon dynamics must be clarified further, as they contained high carbon amounts, the most sensible to management practices.

Os objetivos do presente trabalho foram avaliar o potencial de acúmulo de carbono (C) em solos de cerrado sob diferentes usos florestais (Eucalyptus, Pinus versus vegetação natural) e as possíveis alterações ocorridas na ciclagem de nutrientes sob esse tipo de coberturas. Para isso, foram coletadas 30 amostras de solo (0-5, 10-25 e 35-50 cm) e de serrapilheira acumulada em plantios de Eucalyptus, Pinus e remanescentes de cerradão em quatro municípios do estado de SP, nas quais se determinou: pH, matéria orgânica (MO), C, macronutrientes e densidade, além da granulometria no solo. Os estoques de C do solo foram calculados através do ajuste e integração de equações exponenciais, obtendo-se valores entre 3,4 e 8,6 kgC.m-2.(na camada de 0 a 30 cm) e entre 5,7 e 11,3 kgC.m-2.(até 1m). Os resultados mostraram que a silvicultura de Eucalyptus e Pinus afeta o acúmulo de C e a ciclagem de nutrientes em áreas de cerrado. As alterações nos estoques de C ocorreram principalmente nos horizontes orgânicos e na camada superficial do solo em decorrência da substituição da MO original por outra de pior qualidade química. A influência do tipo de vegetação sobre o C da camada superficial do solo variou em função de características do sítio, verificando ganhos em alguns dos locais estudados, perdas em outros e ainda diferenças não significativas. Em profundidades maiores, o conteúdo de C mostrou-se fortemente relacionado com o teor de argila e diminuiu sob cultura de Eucalyptus e Pinus, sendo mais fortes as depleções sob Pinus. Nos plantios houve formação de horizontes orgânicos espessos, com concentrações de C elevadas. A concentração de nitrogênio (N), cálcio, magnésio e potássio do material aí acumulado foi menor do que nas áreas naturais, enquanto que a acidez e a relação C/N foram maiores. Isso pode inibir a decomposição, o que explicaria o maior armazenamento de C na serapilheira. A incorporação desse material ao solo implica em alterações da MO, que é um dos principais fatores de estruturação e fertilidade dos solos tropicais e foi afetada em quantidade e qualidade. As relações C/N quantificadas na camada superficial do solo foram significativamente maiores do que em áreas de vegetação natural, indicando substituição da MO nessa camada no tempo de vida dos plantios (~40 anos). Os resultados demonstram a ocorrência de alterações na qualidade química da MO na serapilheira e no solo superficial sob uso silvicultural, as quais podem originar maiores estoques e tempos de residência do C, mas também diminuições de recursos tróficos para a comunidade decompositora, com implicações no resto do ecossistema. Os resultados sugerem que a dinâmica do carbono do solo varia ao longo do perfil, sendo necessário esclarecer melhor os fatores que definem o carbono da camada superficial, maior em quantidade e mais sensível aos efeitos do manejo. / Effects on soil organic carbon storage potential and possible biogeochemical changes of established forest plantations were assessed in southeast Brazil, in Eucalyptus and Pinus plantations compared with natural areas of native dry forest (cerradão). 30 plots were randomly distributed for soil (0-5, 10-25 and 35-50 cm) and forest floor litter collection in mature plantations (~40 years old) and adjacent native forest. The design was replicated in 4 localities in Sao Paulo, southeast Brazil. Organic matter, organic carbon, macro nutrients, pH, density, and soil texture were determined. Soil organic carbon stocks were calculated through exponential equations adjustment and integration, values ranged from 3,4 to 8,6 kgC.m-2.(on the 0 and 30 cm layer) and from 5,7 to 11,3 kgC.m-2.(up to 1m). Soil organic carbon and biogeochemical features were affected under Eucalyptus and Pinus plantations. Changes in carbon stocks were stronger in organic layers and topsoil, due to the replacement of the original organic matter, causing chemical quality decrease. Effects of vegetation on topsoil organic carbon were site dependent, as plantations results in gains, losses and no remarkable differences between natural and forested areas. Eucalyptus and Pinus establishment led to organic carbon losses, which possibly conducted by soil disturbances at implementation of plantations. Carbon content was strongly related to clay at deeper layers, but not at shallower ones. Thicker organic layers with higher carbon content were found under plantations. Lower calcium, magnesium and potassium concentrations and higher acidity and C/N (carbon to nitrogen) ratios were measured at implanted forest floor litter layers. These changes could inhibit decomposition, explaining larger litter carbon storage. Soil organic matter is an important factor in maintaining tropical soil structure and fertility. It was affected by Eucalyptus and Pinus forestation. While litter organic mater is incorporated into the soil, it leads to soil organic matter chemical quality decreases. The topsoil C/N ratio measured in plantations was significantly higher than in natural vegetation areas, indicating organic matter replacement on this layer in plantations lifetime (~40 years). We concluded that litter and topsoil organic matter chemical properties were affected by forestation with Eucalyptus and Pinus, which could result in larger C stocks and residence times, but could also decrease trophic resources for decomposers, with implications on the whole ecosystem. The results suggest that soil carbon dynamics changes along the soil profile. Factors controlling surface soil carbon dynamics must be clarified further, as they contained high carbon amounts, the most sensible to management practices.

No description available.

Abstract A study is made of the dealings of the local people with the Board of Forestry in matters connected with the crown forests of Northern Finland in the 19th century, setting out from the creation of the Forestry Board, the establishment of its ways of working and its local impact on settlement and sources of livelihood. This state of tension was perpetuated by delays in implementation of the Great Partition and by the presence of cottagers and pioneer settlers living in the crown forests. One major question was whether these forests were intended primarily to serve the purposes of state forestry or of settlement in the north of Finland. An account is given of the attitude of the Forestry Board towards the traditional modes of forest use typical of the crown forests, including swidden cultivation, tar burning and the cutting of wood for domestic use. New information is presented on the part played by the Forestry Board in regulating swidden cultivation and tar burning. Another topic not previously addressed is illicit exploitation of the crown forests. This was common practice in the Tornio and Ii river valleys in particular, to the extent that forest wardens on the border with Sweden were supplied with pistols to deal with this threat. The sale of timber cut illegally from the crown forests to sawmills in both Finland and Sweden was widespread, and it was common in the Ii Valley to trade in the timber which the Forestry Board allowed private persons to cut as a form of relief to the poor. The grazing of livestock in crown forests was another bone of contention between Forestry Board officials and the local people, the controversy over cows and what damage they actually did to the crown forests continuing well into the 20th century and ultimately remaining unresolved. Similar disputes arose over spruces carrying beard lichen, on which the reindeer fed, once the demand for spruce pulpwood increased. The actions taking by the foresters in accordance with the law and the demands of their office aroused much criticism in Finland, and this polemic spread to the newspapers, the Diet and the literature of the day. It was the fate of the Forestry Board and its officials to become an object of suspicion and even downright hatred. Their interference with traditional sources of livelihood, modes of land use and ancient rights of exploitation was apt to give rise to friction and maintain an attitude of mistrust on both sides. The present work provides new explanations for the author Pentti Haanpää's famous saying, "Beware of fine gentlemen – and of foresters most of all", and modern forest management conflicts can be appreciated and understood better in the light of these events. / Tiivistelmä Olen tutkinut metsähallituksen ja pohjoissuomalaisten kanssakäymistä ja suhteiden muotoutumista Pohjois-Suomen kruununmetsissä 1800-luvulla. Lähtökohtina ovat metsähallinnon perustaminen, toiminnan vakiinnuttaminen sekä metsähallinnon vaikutus paikallisiin elinkeinoihin ja asutustoimintaan. Kangertelu metsänhoidossa ja liiketoiminnan aloittamisessa sekä yhteenotot paikallisen väestön ja lehdistön kanssa sävyttivät metsähallinnon ensimmäisten vuosikymmenten toimintaa. Hidastunut isojako sekä kruununmetsiin hakeutunut asutus, kruununmetsätorpat ja uudistilat, ylläpitivät jännittynyttä suhdetta. Suuri kysymys oli, olivatko kruununmetsät valtion metsätaloutta vai Pohjois-Suomen asutusta varten. Tutkimuksessa myös selitetään, miten metsähallinto suhtautui perinteisiin, juuri kruununmetsiin suuntautuneisiin metsänkäyttötapoihin, kuten kaskenpolttoon, tervatalouteen ja puun kotitarvekäyttöön. Metsähallinnon osuus kaskeamisen ja tervanpolton ohjailussa nousee esille uudella tavalla. Kruununmetsien haaskaajat eli varkaat ovat myös ennen tutkimaton teema. Kruununmetsien varastaminen oli yleistä erityisesti Tornionjokilaaksossa ja Iijokilaaksossa. Ruotsin rajan läheisyydessä toimineet metsänvartijat jopa aseistettiin pistoolein metsävarkaita vastaan. Varastetun puutavaran toimittaminen niin Suomen kuin Ruotsin sahoille oli maan tapa. Iijokilaaksossa turvauduttiin metsähallinnon käsikauppa- eli lupapuihin, joista tuli köyhäinavun, mutta myös keinottelun muoto. Keinottelu varsinaisilla valtionmailla eli haku uudistilalliseksi vain puutavaran vuoksi, kuuluu myös Pohjois-Suomen metsähistoriaan. Eläinten laiduntaminen kruununmetsissä myös asetti metsähallinnon virkamiehet ja paikallisen väestön vastakkain. Vielä 1900-luvulla lehmä kruununmetsissä oli kiistan kohteena. Lopullista selvyyttä siihen, mitä vahinkoa lehmä teki kruununmetsille, ei saatu koskaan. Lisäksi porojen käyttämät luppopuut eli naavakuuset hiersivät suhteita tilanteessa, jossa kuusipuulle oli syntymässä kysyntää paperipuuna. Metsänhoitajat saivat kritiikkiä toimiessaan viran ja lain vaatimalla tavalla Pohjois-Suomessa. Metsäherroja polemisoitiin sanomalehdissä, valtiopäivillä ja kirjallisuudessa. Metsähallinnon ja metsäherrojen osana oli 1800-luvulla olla epäluulon ja suorastaan vihamielisyydenkin kohteena. Puuttuminen perinteisiin elinkeinoihin, maankäyttötapoihin ja muinaisiin tapaoikeuksiin synnytti kitkaa suhteisiin ja ylläpiti epäluuloa molemmin puolin. Pentti Haanpään teksti "Herroja on epäiltävä aina – metsäherroja yli kaiken" on saanut uutta, selittävää ainesta ympärilleen. Nykyiset metsäkonfliktit avautuvat paremmin ja tulevat ymmärrettävimmiksi 1800-luvun metsähistorian kautta.