A quantitative assessment on groundwater salinization in the Tarim River lower reaches,Northwest China  

作　　者：JianHua Xu WeiHong Li YuLian Hong ChunMeng Wei Jie Tang 

机构地区：[1]The Research Center for East-West Cooperation in China,the Key Laboratory of Geographic Information Science,the Ministry of Education of PRC,East China Normal University [2]State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences

出　　处：《Research in Cold and Arid Regions》2014年第1期44-51,共8页寒旱区科学（英文版）

基　　金：supported by the National Basic Research Program of China(973 Program;No.2010CB951003)

摘　　要：Based on monitored data from 840 samples, we assessed the spatial and temporal variability of groundwater salinization in the Tarim River lower reaches combining classical statistics and geostatistics. Results show that total dissolved solids （TDS） is significantly correlated with other related ions, such as Na＋, Mg2＋, Ca2-, C1- and K＋. TDS and underground water level have characteristics of spatial autocorrelation, both of which present the isotropic characteristic and con- form to the spherical model in each year from 2001-2009. TDS is basically greater than 1 g/L but less than 2 g/L in the Tarim River lower reaches, which indicates that salt stagnation pollution is more serious. The most serious salinization （3 g/L 〈 TDS _〈 35 g/L） contaminated area is mainly in the middle and lower part of the study area.Based on monitored data from 840 samples, we assessed the spatial and temporal variability of groundwater salinization in the Tarim River lower reaches combining classical statistics and geostatistics. Results show that total dissolved solids （TDS） is significantly correlated with other related ions, such as Na＋, Mg2＋, Ca2-, C1- and K＋. TDS and underground water level have characteristics of spatial autocorrelation, both of which present the isotropic characteristic and con- form to the spherical model in each year from 2001-2009. TDS is basically greater than 1 g/L but less than 2 g/L in the Tarim River lower reaches, which indicates that salt stagnation pollution is more serious. The most serious salinization （3 g/L 〈 TDS _〈 35 g/L） contaminated area is mainly in the middle and lower part of the study area.

关 键 词：GROUNDWATER salinization assessment SEMIVARIOGRAM GEOSTATISTICS lower reaches of the Tarim River 

分 类 号：P641.8[天文地球—地质矿产勘探]