水资源与水工程学报2016，Vol.27Issue(2)：231-236,240,7.DOI:10.11705/j.issn.1672-643X.2016.02.43
塔里木河下游土壤盐分空间变异规律研究
Study on spatial variation law of soil salinity in lower reaches of Tarim river
摘要
Abstract
For the widespread problem of soil salinization in arid zone,the paper took the lower reaches of Tarim river basin as research area and studied the spatial variation of soil salinity at different levels by use of the method of combining classical statistics and geo statistics. At the same time,it discussed the influ-ence factors of soil salinity and its variation law by use of the data of groundwater depth and salinity at typical section from 2000 to 2011. The results showed the accumulation was manifest on the surface, the accumulation effect of soil salinity is obvious and there is a significant correlation in space. The effect de-creases gradually from top to bottom in vertical direction and maintains integral strip in the horizontal di-rection and the variation characteristics of local patch pattern The groundwater depth and salinity is the major factor which impacts distribution of soil salinity. There is a good exponential function between soil whole salt with groundwater depth and salinity. The inter-annual variability of groundwater depth and salinity, indirectly reflected the trend of soil salinity,which can provide theoretical basis and scientific ba-sis for soil salinity control and regulation of regional water and salt movement in the study area.关键词
地统计学/土壤盐分/空间变异/地下水埋深/矿化度/塔里木河下游流域Key words
geo statistics/soil salinity/spatial variation/groundwater depth/salinity/lower reaches of Tarim river basin分类
农业科技引用本文复制引用
沈丽娜,吴巍,周孝德,焦露慧,李景远,杨启功..塔里木河下游土壤盐分空间变异规律研究[J].水资源与水工程学报,2016,27(2):231-236,240,7.基金项目
国家重点基础研究发展规划(973计划)(2012CB723200) （973计划）
陕西省自然科学基础研究计划项目(2014JQ7285) （2014JQ7285）
