基于GIS的黑河下游地下水波动带范围探析

Analysis to the Groundwater Fluctuating Range in Lower Reaches of Heihe River

在GIS支持下,通过对黑河下游生态输水前后地下水位空间连续分布及其变化情况的分析,对自生态输水实施以来到2005年输水结束所形成的地下水波动带范围进行了探索性分析。结果表明,黑河下游地下水波动带大致在河流20 km缓冲带附近。该研究可为黑河下游生态输水的环境效应分析及区域生态恢复提供参考。

The distribution of groundwater level in an uninterrupted space was studied under the support of GIS in the lower reaches of Heihe River. And the change of groundwater level was analyzed from the very beginning of ecological water delivery to its very end in 2005. Results showed that the range of groundwater fluctuation lies around the 20 km buffer zone of the river. This study is of help for the analysis of environmental effect from an ecological water delivery perspective. It can also provide reference for ecosystem restoration in the river＇s lower reaches.