期刊论文

中文

水土保持研究

1005-3409

2018

25

1

298-303

10.13869/j.cnki.rswc.2018.01.047

国家自然科学基金(71573245) 国家重点研发计划(2016YFC0501002).

本校为其他机构

土地沙漠化是生态系统服务价值变化的重要影响因素,文章基于NDVI等多源数据与GIS、敏感性分析方法,分析了1981—2010年内蒙古地区沙漠化演变对区域生态系统服务价值的影响。结果表明:(1)1981—2010年,内蒙古地区沙漠化面积净增加6.92万km~2,但总体沙漠化程度有所改善。沙漠化逆转区域主要集中于内蒙古西南部的鄂尔多斯与阿拉善,而沙漠化发展区域主要发生在中北部的科尔沁和浑善达克。(2)生态系统服务总价值减少671.57亿元;沙漠化演变对生态系统服务价值具有中度线性相关关系,其造成生态系统服务价值损失比例为23.7%。(3)沙漠化演变对沙区生态系统服务价值变化的影响具有空间异质性,在鄂尔多斯、...

Desertification is an important factor influencing the change of ecosystem service values.The desertification dynamics in Inner Mongolia from 1981 to 2010 and its impact on regional ecosystem service values were analyzed by combining multi-source data such as NDVI,GIS and the sensitivity analysis method.The results showed that:(1)although the area of deserted land in Inner Mongolia increased 69 200 km~2 from 1981 to 2010,the overall degree of desertification had been controlled;the regions experiencing desertification reversion mainly concentrated in the southwest of Inner Mongolia such as Ord...