The distributed hydrology soil vegetation model (DHSVM) is applied in the 107 km² Nam Mae Rim watershed (NMRW) in northern Thailand. Simulations using land cover scenarios for 1989 and 2002, extreme deforestation, and forest, each run with and without roads, show that roads have very small effects on the mean water fluxes, but significantly increase peak flows for all land cover scenarios. The magnitude of the road effect on peak flow depends on the land cover context in which the roads are placed.
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Showing items 1 through 9 of 173.-
Library ResourceJournal Articles & BooksDecember, 2008Thailand
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Library ResourceJournal Articles & BooksDecember, 2008Canada
The term “aboriginal forestry” is used increasingly to describe the evolving role of First Nations peoples in Canadian forestry over the last 30 years.
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Library ResourceConference Papers & ReportsJuly, 2008Brazil
A expansão da agricultura e da pecuária tem sido considerada como a principal causa do desmatamento que se processa na Amazônia. A decisão de escolha do sistema de uso da terra é um elemento determinante dos níveis de desmatamento e fatores relacionados às características da família e Ao ambiente socioeconômico antecedem as decisões de adoção desses sistemas. O objetivo desse estudo foi identificar os condicionantes da adoção dos diferentes sistemas de uso da terra nos principais pólos de produção agropecuária familiar no estado do Acre.
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Library ResourceJournal Articles & BooksDecember, 2008
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Library ResourceJournal Articles & BooksDecember, 2008Costa Rica
Conservationists have proposed that maintaining key elements of the original land-cover type in modified landscapes may mitigate the detrimental effects of land-cover change on residual species. We tested this hypothesis for aquatic insect communities in tank-forming bromeliads in forested and non-forested habitats in Costa Rica. Bromeliad tanks hold much of the standing water in this region and therefore provide an important resource for insects with aquatic larval stages.
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Library ResourceJournal Articles & BooksDecember, 2008
This paper studies the willingness to pay (WTP) for forest property rights in Viet Nam. We do so by asking respondents to estimate the value of two different forest property rights regimes where only the level of property security differs and all other forest plot characteristics are constant. We use this information to identify the value of the property rights security.
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Library ResourceJournal Articles & BooksDecember, 2008Nepal
This study analyzes forest change in an area of Nepal that signifies a delicate balance between sustaining the needs and livelihood of a sizable human population dependent on forest products, and an effort to protect important wildlife and other natural resources.
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Library ResourceJournal Articles & BooksDecember, 2008Philippines, Africa, Central America, Asia, South America
A major development concern of the 1970s and 1980s was 'the other energy' or 'woodfuel crisis'. Woodfuel use in developing regions of Africa, Asia, and Latin America was believed to be a key factor in tropical deforestation, and the loss of forests was projected to result in widespread woodfuel shortages. In recent years, however, it has become apparent that woodfuel production is seldom a direct cause of deforestation (although it may be a by-product), and that most woodfuel demand is met by trees and shrubs growing outside of forest areas.
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Library ResourceJournal Articles & BooksDecember, 2008Global
Present biodiversity conservation programmes in the remaining extensive forest blocks of the humid trop-ics are failing to achieve outcomes that will be viable in the medium to long term. Too much emphasis is given to what we term grand design-ambitious and idealistic plans for conservation. Such plans im-plicitly oppose or restrict development and often attempt to block it by speculatively establishing paper parks. Insufficient recognition is given to the inevitable long term pressures for conversion to other land uses and to the weakness of local constituencies for conservation.
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Library ResourceJournal Articles & BooksDecember, 2008
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