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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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生态重建模式的评价方法——以黄土丘陵区为例
DOI: 10.11821/xb200404017, PP. 621-628
Keywords: 生态重建模式,评价方法,黄土丘陵区
Abstract:
生态重建模式是协调生态脆弱地区人地关系的系列政策和配套措施的总称。作者在按模式总体特征、生态重建规模、投资需求及实施效果开展评价方法讨论和筛选评价指标的基础上，以黄土丘陵区为例，总结了“赈济退耕”、“梯田退耕”和“坝系根治”3种模式的基本特征，计算了不同模式下黄土丘陵区生态重建关于退耕、新修梯田、园地扩建、建坝淤地以及林草植被恢复等的规模和投资需求额度，分析了各模式下的生态重建效益。结果表明“梯田退耕”可作为黄土丘陵区生态重建的主体模式，目前正在实施的“赈济退耕”具有显著的过渡性特征，“坝系根治”在局部区域可作为辅助模式。
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