青海可可西里湖沼丘陵景观区枯水期化探采样方法技术探讨

Study on Geochemical Exploration Sampling Methods at The Low-water Period In Limnetic Hilly Area of Kekexili,Qinghai Province

为了解决适合于高寒湖沼丘陵地球化学景观区在枯水期采集水系沉积物样品的方法技术问题,在前人研究的基础上,选择青海可可西里地区为该方法技术的研究区,系统研究了可可西里湖沼丘陵区的地球化学景观特征、水系沉积物在枯水期的分布特点、枯水期水系沉积物样品的代表性、以及枯水期与洪水期水系沉积物样品的差别。结合前人在该景观区进行水系沉积物测量的成果,总结出一套适合于高寒湖沼丘陵景观区在枯水期采集水系沉积物样品的方法技术。

In order to solve the problems of stream sediment sampling which is proper for limnetic geochemical area in high-cold limnetic hills in low water seasons,On the basis of previous research,in Hoh Xil,Qinghai,a system study is presented involving the geochemical landscape characteristics of limnetic hills,the distribution characteristics of stream sediment in low water seasons,the representativeness of the stream sediment samples which sampled in low water seasons,and the differences of stream sediment samples which is sampling in flood periods and low water seasons.Combined with previous stream sediment geochemical survey in this area,summed up a set of stream sediment sampling method which is suitable for the high-cold limnetic hills in low water time.