中文摘要：

干旱区的水文地质及生态地质环境研究一直是水文地质学的研究热点。从流域尺度上研究地下水变化的生态效应问题已经引起了广泛的关注。银川盆地地处干旱地区，自然生态环境十分脆弱，植被的发育与地下水有着极为密切的关系。由于遥感技术在大尺度问题的研究方面具有极大的优越性，因此，本文将遥感技术与地下水数据相结合，引入条件植被覆盖率的概念，对银川盆地适宜于植被生长的地下水位埋深进行了研究，并对适宜水位埋深范围内，水质矿化度的影响进行了探讨。结果表明：银川盆地适宜于植被生长的地下水位埋深范围为2-4m，在此埋深范围内，矿化度小于2．5g/L时，地下水水质利于植被发育。

英文摘要：

Research on the hydrological and eco - geological environment in arid areas is the hot point in hydrology subject. The study on environmental effect of groundwater change from river basin scale has caused a lot of attention. Located in arid areas, with weak natural eco - environment, the vegetation development in Yinchuan Basin has a close relationship with groundwater. Remote sensing technology has a great advantage in big scale research. Combined with remote sensing and groundwater data, this research studied the proper groundwater depth for the vegetation development and discussed the effect of water quality in Yinchuan Basin. According to the resuit, the proper groundwater depth for vegetation development is 2 - 4m and the water quality is good for the vegetation if TDS content is lower than 2.5g/L.