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搜索结果: 1-15 共查到deforestation相关记录33条 . 查询时间(0.038 秒)
A study by NSF-funded scientists Andy MacDonald at UC Santa Barbara and Erin Mordecai at Stanforfound a direct relationship between deforestation in the Amazon and the transmissi...
The loss of forests in Africa in the past century is substantially less than previously estimated, an analysis of historical records and paleontology evidence by Yale researchers shows.Previous estima...
Next time you bite into a chocolate bar, think of Africa. The continent produces nearly 70 percent of the world’s cocoa, a growing output that requires carving more than 325,000 acres of new farmland ...
In recent decades, due to rapid human population increases and in its results, destructive effects of anthropogenic activities on natural resources have become a great challenge. Land use and vegetat...
In recent years trans-boundary incursions from Petén, Guatemala into Belize’s Maya Mountain Massif (MMM) have increased. The incursions are rapidly degrading cultural and natural resources in Belize’s...
Anthropogenic land-cover change, e.g. deforestation and forest degradation cause carbon emissions. To estimate deforestation and forest degradation, it is important to have reliable data on forest cov...
Deforestation monitoring for the Brazilian Amazon has been carried on by INPE since 1988, under the PRODES program, and recently, the DETER was created for faster response. The data from both programs...
In order to identify drivers of land use / land cover change (LUCC), the rate of change is often compared with environmental and socio-economic variables such as slope, soil suitability or population ...
Predicting the Location of Deforestation in North Thailand: The Role of Roads and Protected Areas。
We estimate an equilibrium model of land clearing to study the impacts of roads and population on deforestation in Thailand between 1976 and 1989. Population pressures were more important in the N...
This paper assesses the feasibility of forest cover mapping and the delineation of deforestation using Japanese Earth Resource Satellite (JERS-1) Synthetic Aperture Radar (SAR) data. The assessment is...
Policy-making and programme formulation in regard to population, deforestation and other environmental problems in the humid tropics will have to be done in a context of uncertainty. Many facts are un...
The land cover mosaic (LCM) classification concept, which is based on the aggregate-mosaic theory, improves geo-information on tropical deforestation for decision-makers. Land cover mosaics are spatia...
A methodology has been used by means of which modellers and planners can quantify the certainty in predicting the location of deforestation. Geographic information system and logistic regression ana...
Human actions are changing the Amazon’s landscape by clearing tropical forest and replacing it mainly by pasturelands. The focus of this work is to assess the changes in the Itacaiúnas River watersh...

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