desflorestação

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.

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.

In the Brazilian Amazon, insecure property rights are among the main causes of land conflicts and deforestation.

Many of the world's forests are being destroyed at a rapid rate. This article analyzes the decisions of landowners in Maine, where forests have been heavily harvested and much land has been converted to non-forest use. Data on these landowners and their land were obtained from primary and secondary sources, satellite change detection analysis, and structured interviews.

This study looks at wood curio carving in Victoria Falls, Zimbabwe, Africa. Although the local people, Ndebele and Shona, have always carved, they now face a weakened economy, due in large part to land reforms in 2000. Thus, more people sculpt wood as a form of livelihood. As one man said “Starvation taught me art”.

Many of the large, donor-funded community-based conservation projects that seek to reduce biodiversity loss in the tropics have been unsuccessful. There is, therefore, a need for empirical evaluations to identify the driving factors and to provide evidence that supports the development of context-specific conservation projects.

This study was carried out to evaluate the effects of deforestation on physical and chemical properties of soils under native forest in the Mediterranean region of northwestern Jordan. Land use/cover maps of 1953, 1978 and 2002 were interpreted and analysed within GIS to quantify the shift from forest to rainfed cultivation.

This study assesses the presence of a forest transition - that is, a shift from net deforestation to net reforestation - in Vietnam during the 1990s, and describes its key attributes relevant for global environmental change issues.

The world faces unprecedented opportunities to reduce global poverty and improve human welfare. Strong global growth and better economic policies in recent years have substantially reduced poverty in many developing countries.

The operations policy on Development Policy Lending (DPL), approved by the Board in August 2004, requires that the Bank systematically analyze whether specific country policies supported by an operation are likely to have "significant effects" on the country's environment, forests, and other natural resources.

This strategic framework serves to guide and support the operational response of the World Bank Group (WBG) to new development challenges posed by global climate change. Unabated, climate change threatens to reverse hard-earned development gains. The poorest countries and communities will suffer the earliest and the most. Yet they depend on actions by other nations, developed and developing.

This paper has two objectives. First, it analyzes the past research on deforestation and summarizes the findings of that research, in terms of its relevance to the development of future REDD regimes. Second, it highlights areas where future research and methodological development are needed to support national and international processes on avoided deforestation and degradation.