咸水入侵区土地利用／覆被变化的水环境效应分析--以昌邑市为例

Analysis of Water Environment of the Land Use and Land Cover Changes in the Salt-Water Intrusion Area of Changyi City—Take Changyi City as a Case Study

通过对潍河下游地区即昌邑市的咸水入侵地区土地利用状况分析,出现了一系列的水环境效应。随着人类对自然活动强度的不断加大,城乡工矿居民用地的增加,对水资源的需求量越来越大。此外对地下水的大量开采造成了严重的咸水入侵,地表及地下可利用水量不断减少;工农业生产及生活废弃物等的排放造成河流污染,与咸水入侵对水源的侵染共同导致了地下水矿化度增大,水质恶化。

This paper indicates the water environment response based on the analysis to the change of land use and land cover change （LUCC） in the salt-water intrusion area of Changyi City, which is located on the lower reaches of the Weihe River： Firstly, the water resource quantity decreases. Along with human activities intensity on the land and water increasing and the urban, mining and rural residential areas enlarging, the demand for water grows. And also, the mass exploitation of groundwater has caused serious sea-water intrusion. The available surface and ground water decline continuously;Secondly, water quality be- comes worse. Wastes produced by industry and farming pollute rivers, and severe salt-water intrusion makes the salinity of groundwater increasing and water quality deteriorating.