科尔沁沙地生态环境及其可持续管理——科尔沁沙地生态考察报告

Ecological environment and its sustainable management of Horqin steppe—A report on the survey of Horqin sandy land.

中国科学院沈阳应用生态研究所和中央电视台于 2 0 0 3年 8月联合对科尔沁沙地进行了生态科学考察。草地退化仍呈加剧态势。大面积开垦荒地造成科尔沁草地退化和面积减少的主要原因之一。科尔沁水资源目前存在的主要环境问题是水资源呈现明显减少趋势、主要河流供水量减少、沙地内部水体明显减少、部分地区地下水位明显下降。科尔沁沙地的沙地面积在近些年呈减小的趋势 ,人工植被恢复力度日益加大效果显著但分布在科尔沁沙地的沙丘面积还很大 ,且未治沙丘的治理难度相对更大。

A joint survey on ecologial environmemt of Horqin steppe was carried out by both Shenyang Institute of Applied Ecology,Chinese Academy of Sciences and China Central Television in August,2003.The investigation showed that grassland is degrading seriously.Land reclamation in a large scale is one of main reason of grassland degradation and decrease of grassland area.According to the investigation,a major issue is the remarkable declination of water resources,including declination of river water, lake water and falling of the ground-water table.Investigation showed that the desertification area in Horqin steppe is decreasing.The established artificial vegetation is increasingly reforced and its effect is remarkable. At present,however,area covered with the sand dunes out of control is still very large,and to control this area is considered as a very hard work.