喀什地区近10年地下水资源时空动态变化分析

Spatial dynamic changes of ground water resources in Kashghar prefecture during recent 10 years

地下水资源对干旱半干旱地区未来社会经济发展有着非常重要意义。文中利用喀什地区叶尔羌河流域与喀什噶尔河流域近10年地下水水位实测资料,对研究区地下水时空动态变化规律进行了分析及探讨。结果表明:叶尔羌河流域与喀什噶尔河流域在不同年份、不同季节及不同月份之间有显著差异。尤其是中游、下游平原区与上游山前平原区之间地下水水位动态变化差异明显。这与海拔高度关系密切,另外近几年来两条流域周围生态环境的变化、人类活动的影响也引起地下水水位持续下降。

Ground water resource has very important meaning in socio-economic development of arid and semi-arid area.In this paper,on the utilization of surveyed materials of ground water level during recent 10 years of Zarapshan river watershed and Kashghar river watershed in Kashghar prefecture,we analyzed and discussed the dynamic changing rules of ground water in studying area.Results were that the ground water resource has very obvious divergence in different years,seasons and months in Zarapshan river watershed and Kashghar river watershed（P0.01）.Spatially,the dynamic changing differences of ground water level between middle reaches plain and lower reaches plain with upper reaches plain is very obvious.This status has relations with altitude;in addition,effects of eco-environmental changes and human activities in these two river watersheds caused consistent decreases of ground water level.Consequently,analysis on dynamic changes of ground water level in different years,seasons and months in Zarapshan river watershed and Kashghar river watershed provide the coming studies with references.