摘要
作为美国国家科学基金项目"中国生态恢复综合影响评价"的部分研究结果,对项目选定的四个评价区之一的黄河中上游地区的研究区域进行土地利用和覆盖变化研究,并以此评价退耕还林效果。利用覆盖研究区域的卫星遥感图像进行解译,以便获取研究区域土地利用和土地覆盖变化(LUCC)的历史数据,特别是大于25度坡度的LUCC以及退耕前后的LUCC数据,通过这些解译数据评价研究区域的退耕还林效果。解译后的数据显示退耕还林效果良好。选定24景跨20年(1978年至2007年)的Landsat遥感卫星图像数据,通过解译追踪研究区域LUCC历史演变,来判断退耕还林的执行效果。
This paper presents the evaluation of the Sloping Land Conversion Program (SLCP) implementation in a study region which is situated in the middle and upper reaches of Yellow River. The area is one of four appraisal areas chosen by a project named " An Integrative Impact Evaluation of China 's Ecological Restoration Programs" funded by American National Science Foundation. Satellite remote sensing images covered the region are interpreted in order to get LUCC ( land use and land cover change) data within 20 years, specially data on sloping land bigger than 25° and data around the start time of SLCP. The LUCC data is applied to evaluation and effect analysis of SLCP implementation. Interpreted data tells the fact that SLCP effect is good in the study area. In the research, 24 Satellite remote sensing images are used to trace .historical transition on LUCC to the year 1978.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2009年第11期47-52,共6页
Journal of Arid Land Resources and Environment
基金
美国国家科学基金(National Science Foundation)项目(0624018)资助