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IssuesdesflorestaçãoLandLibrary Resource
There are 3, 056 content items of different types and languages related to desflorestação on the Land Portal.

desflorestação

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Mapping the vegetation changes in giant panda habitat using Landsat remotely sensed data

Journal Articles & Books
Dezembro, 2011

Since the 1950s, with national policy changes and socio-economic development, the habitat of the giant pandas has altered accordingly. This can also be inferred from the population changes of the giant pandas as reported in three national surveys. Thus, monitoring the changes in giant panda habitat and then taking appropriate action would be a valuable contribution to giant panda protection. In this paper, using existing habitats and potential habitats of the giant pandas as the study area, multitemporal remotely sensed data from the three national surveys are used as the data source.

Can REDD+ Save the Forest? The Role of Payments and Tenure

Journal Articles & Books
Setembro, 2012

A recent policy response to halting global forest deforestation and degradation, and any resulting greenhouse gas emissions is REDD+, which also includes the role of conservation, sustainable management of forests and enhancement of forest carbon stocks. Although still in its infancy, the success of REDD+ will depend significantly on whether it can be economically viable and if any resulting payments are sufficient to cover the opportunity cost plus any transaction cost.

roles of roads and agricultural land use in altering hydrological processes in Nam Mae Rim watershed, northern Thailand

Journal Articles & Books
Dezembro, 2008
Tailândia

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.

Global forecasts of urban expansion to 2030 and direct impacts on biodiversity and carbon pools

Journal Articles & Books
Dezembro, 2012
Sri Lanka
África Ocidental
Global

Urban land-cover change threatens biodiversity and affects ecosystem productivity through loss of habitat, biomass, and carbon storage. However, despite projections that world urban populations will increase to nearly 5 billion by 2030, little is known about future locations, magnitudes, and rates of urban expansion. Here we develop spatially explicit probabilistic forecasts of global urban land-cover change and explore the direct impacts on biodiversity hotspots and tropical carbon biomass.

Committed carbon emissions, deforestation, and community land conversion from oil palm plantation expansion in West Kalimantan, Indonesia

Journal Articles & Books
Dezembro, 2012
Indonésia

Industrial agricultural plantations are a rapidly increasing yet largely unmeasured source of tropical land cover change. Here, we evaluate impacts of oil palm plantation development on land cover, carbon flux, and agrarian community lands in West Kalimantan, Indonesian Borneo. With a spatially explicit land change/carbon bookkeeping model, parameterized using high-resolution satellite time series and informed by socioeconomic surveys, we assess previous and project future plantation expansion under five scenarios.

Effects of conservation policies on forest cover change in giant panda habitat regions, China

Journal Articles & Books
Dezembro, 2013
China

After long periods of deforestation, forest transition has occurred globally, but the causes of forest transition in different countries are highly variable. Conservation policies may play important roles in facilitating forest transition around the world, including China. To restore forests and protect the remaining natural forests, the Chinese government initiated two nationwide conservation policies in the late 1990s – the Natural Forest Conservation Program (NFCP) and the Grain-To-Green Program (GTGP).

Beyond REDD+ readiness: land-use governance to reduce deforestation in Peru

Journal Articles & Books
Dezembro, 2014
Peru

Peru contains the fourth largest area of tropical forest in the world, yet faces a worsening net deforestation rate. In 2008, to address this threat, the national government announced its ambition to reduce deforestation to zero by 2021. Via literature review and key informant interviews, this study assess two years of REDD+ readiness preparations according to six readiness functions. A mixed pattern of outcomes emerge. Although significant advances were made by various local-level initiatives, national-level efforts continue to struggle.

Quantification of aboveground rangeland productivity and anthropogenic degradation on the Arabian Peninsula using Landsat imagery and field inventory data

Journal Articles & Books
Dezembro, 2011
Oman

The productivity of semi-arid rangelands on the Arabian Peninsula is spatially and temporally highly variable, and increasing grazing pressure as well as the likely effects of climatic change further threatens vegetation resources. Using the Al Jabal al Akhdar mountains in northern Oman as an example, our objectives were to analyse the availability and spatial distribution of aboveground net primary production (ANPP) and the extent and causes of vegetation changes during the last decades with a remote sensing approach.

Agroforestry and the search for alternatives to slash-and-burn cultivation: From technological optimism to a political economy of deforestation

Journal Articles & Books
Dezembro, 2009

Launched in 1994, the Alternatives to Slash-and-Burn Programme is a multidisciplinary collaborative research effort aimed at addressing the issue of deforestation. This article analyzes the genesis and the history of this research effort and the causes of its successes and failures. I will show that despite the genuine commitment of the ASB Programme to achieve comprehensive analysis linking the social and the biophysical realms, its conclusions and recommendations were biased in favor of biophysical models whose adoption by farmers remained low.

Reducing reservoir impacts and improving outcomes for dam‐forced resettlement: experiences in central Vietnam

Journal Articles & Books
Dezembro, 2014
Vietnam

The present study focuses on the growing problem of the impacts of human displacement resulting from hydropower dam construction, within the context of the integrated lake basin management of dam reservoirs. Dam‐forced displacement and resettlement can pose severe challenges to the environmental, economic and social sustainability of a reservoir basin.

Comprehensive evaluation of the climate-change implications of shifting land use between forest and grassland: New Zealand as a case study

Journal Articles & Books
Dezembro, 2012
Nova Zelândia

The transition of land between forest and grassland has important implications for greenhouse gas emissions and removals. In this paper, we use New Zealand as a case study to comprehensively assess, compare and quantify the net climate change impact of shifting land use between temperate forest and grassland. Forests store large amounts of carbon in their biomass, whereas grasslands contain relatively little biomass carbon. These biomass changes tend to dominate the carbon balance under land-use change.