| 乌兰陶勒盖水源地地下水开采的植被生态风险研究 |
| |
| 引用本文： | 高海东.乌兰陶勒盖水源地地下水开采的植被生态风险研究[J].中国煤炭地质,2010(1):41-45. |
| |
| 作者姓名： | 高海东 |
| |
| 作者单位： | 内蒙古自治区第二水文地质工程地质勘查院; |
| |
| 摘 要： | 乌兰陶勒盖水源地位于毛乌素沙漠腹地,地表水体不发育,植被生态相对脆弱。水源地大规模开采引发的地下水位下降将会对区内的植被生态造成一定的破坏。采用样方调查方法,对区内植被生态现状进行了调查,将区内植被分为荒漠、低湿和沙地三种植被类型;对植被覆盖度与地下水位的关系进行了探讨,得出植被生存的最佳水位是1.1～3.0m;运用GIS软件对区内植物现状与地下水位埋深进行了敏感性分区研究。试探性的建立开采条件下的植被生态风险指数,并根据指数值的大小进行风险性分区,结果表明,在选定的开采方案下,高风险区和中风险区的分布面积较小,而低风险区的面积最大,从而说明在乌兰陶勒盖水源地新增地下水开采量11.82万m3/d的情况下,不会对生态植被造成大的影响。
|
| 关 键 词： | 沙漠植被 生态现状 适生水位 地下水开采 风险指数 乌兰陶勒盖 |
Study of Vegetation Ecological Risk during Groundwater Mining in Ulan Tolgoi Water Head Site |
| |
| Gao Haidong.Study of Vegetation Ecological Risk during Groundwater Mining in Ulan Tolgoi Water Head Site[J].Coal Geology of China,2010(1):41-45. |
| |
| Authors: | Gao Haidong |
| |
| Institution: | Gao Haidong(Inner Mongolia Second Hydrogeological Exploration Institute,Ordos,Inner Mongolia 017000) |
| |
| Abstract: | The Ulan Tologoi water head site is located in the hinterland of the Mu Us desert,where surface water is not developed thus a relatively fragile vegetation eco-environment.The lowering groundwater level initiated by large scope water head site exploitation will bring on vegetation eco-environment destruction.The quadrat method is used in investigation,and then divided the area into desert,lowland humid and sandy land three types of vegetation forms.The relation between vegetation coverage and groundwater le... |
| |
| Keywords: | desert vegetation ecological status quo water level qualified to survival groundwater mining risk index Ulan Tolgoi |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
