摘要
毛乌素沙地南缘是我国典型风蚀、水蚀过渡带,生态环境脆弱,随着近年来煤炭能源基地的建设,生态环境保护压力逐渐增大,本文以毛乌素沙地南缘生态环境保护为研究对象,选取榆横矿区北区为研究区,依据其生态环境特点,选择土地利用、植被覆盖、水域、沙质荒漠化4个因子作为生态敏感性评价指标,应用生态因子评价模型和GIS空间分析功能,开展生态环境敏感性评价,在对单因子敏感性评价的基础上,进行综合生态敏感性评价。结果表明:(1)该区综合生态敏感性较高,中度敏感性区面积最大,占总面积的71.34%,整体生态系统较脆弱。(2)根据不同等级敏感区提出开发保护的对策,为榆横矿区北区矿产资源开发建设进程中的土地合理利用、生态环境保护提供参考,同时也为毛乌素沙地南缘煤矿区的开发提供借鉴。
The south edge of Mu Us sandy land is a typical transition zone of wind erosion and water erosion, the ecological environment is fragile, in recent years, with the construction of coalenergy base, environment protection pressure increases, the paper study the southern edge of Mu Us sandy land Ecological Environment Protection.Take north part of Yunheng mine area as an example, based on the ecologic characteristics, we focus our study mainly on the following aspects： land use, vegetation coverage, water and desertification. Utilizing evaluation model of ecological factors and spatial analysis of GIS, we investigate the area ecological sensitivity and create the ecological sensitivity evaluation based on the partition of sensitivity of a single factor. From the study, we can see that （1）ecological sensitivity in north area is high, 71.34 % of the entire area has media sensitivity which indicates the ecological system in that area is fragile. （2）According to different levels of sensitive area offer exploitation and protection countermeasures for north of Yuheng mine area and provide a reference in the process of rational land use, ecological and environment protection,also for the development of the south edge of Mu Us sandy land mining area.
作者
吕俊娥
安鑫
LV Jun-e AN Xin(Aerial Photogrammetry ＆ Remote Sensing bureau, ChinaNationalA dministration of Coal Geology, Xi＇an, 710199, China)
出处
《能源环境保护》
2017年第5期38-41,54,共5页
Energy Environmental Protection
关键词
生态敏感性
毛乌素沙地南缘
GIS
榆横矿区北区
ecological sensitivity
south edge of Mu Us sandy land
GIS
north of Yuhengmine area.
