详情

原文传递 Minimizing Ecological Damage from Road Improvement in Tropical Forests

题名：	Minimizing Ecological Damage from Road Improvement in Tropical Forests
责任者：	Dasgupta, Susmita；Wheeler, David
关键词：	Rural Development — Rural Roads & Transport；Environment — Biodiversity；Environment — Forests and Forestry；Environment — Natural Resources Management；Rural Development — Natural Resources Management and Rural Issues
学科分类：	交通运输环境保护
摘要：	A spatial econometric model is used to link road upgrading to forest clearing and biodiversity loss in the moist tropical forests of Bolivia, Cameroon, and Myanmar. Using 250-meter cells, the model estimates the relationship between the rate of forest clearing in a cell and its distance to the urban market, with explicit attention given to road quality and simultaneity, terrain elevation and slope, the agricultural opportunity value of the land, and its legal protection status. Forest clearing is found to be most responsive to the distance to the nearest urban market, especially with secondary roads with lower typical speeds. Using the estimated forest-clearing response elasticities and a composite biodiversity indicator, an index of expected biodiversity loss from upgrading secondary roads to primary status is computed in each cell. The results identify areas in the three countries where high expected biodiversity losses may warrant additional protection as road upgrading continues. In addition, the results provide ecological risk ratings for individual road corridors that can inform environmentally sensitive infrastructure investment programs.
出版机构：	World Bank
完成日期：	2016-10-06T21:46:04Z
报告类型：	咨询报告
详细地址：	http://documents.worldbank.org/curated/en/2016/09/26796510/minimizing-ecological-damage-road-improvement-tropical-forests
资源类型：	科技（咨询、行业）报告
初始创建时间：	2017-12-14T05:26:56Z