开都河流域下游绿洲盐渍化土壤特征研究  

The characteristics of the oasis soil salinization in the lower reaches of Kaidu River Basin,Xinjiang

作　　者：李新国[1,2] 樊自立[3] 任云霞[1,2] 李会志[1,2] 

机构地区：[1]新疆师范大学地理科学与旅游学院,乌鲁木齐830054 [2]新疆干旱区湖泊环境与资源重点实验室,乌鲁木齐830054 [3]中国科学院新疆生态与地理研究所,乌鲁木齐830011

出　　处：《干旱区资源与环境》2011年第11期157-160,共4页Journal of Arid Land Resources and Environment

基　　金：国家自然科学基金项目（41061025）; 新疆维吾尔自治区高校科研计划青年教师科研基金项目（XJEDU2009S69）资助

摘　　要：通过野外调查、实地测点以及土壤采样分析,以新疆开都河流域下游绿洲为典型区,利用SPSS、Excel等软件对土壤盐分离子含量、电导率、土壤水溶液中总溶解固体（TDS）与土壤含盐量和电导率的关系以及盐分离子间相关性进行了分析。结果表明：土壤pH值的平均值大于8.0,属于碱性土壤;土壤含盐量较高,0～10 cm土层中的含盐量最大,平均值达到2.83%;土壤阳离子主要以Na^＋、K^＋和Mg^2＋为主,土壤阴离子主要以SO4^2-和CL^-为主;电导率、TDS与含盐量之间正相关,关系极显著。Based on field survey,GPS location and soil analysis,soil salinization levels and distribution were investigated,and the characteristics of soil salinization in the lower reaches of Kaidu River Basin in Xinjiang were analyzed.Using SPSS and Excel software,the content of salt ions,relation between salt content and conductivity,and correlation of the salt ions were analyzed.The results showed that Lands in the area are mostly of alkali soil with pH value higher than 8.0,and high in salt content,and salts content rate mostly in the 0～10cm surface layer,it accounts for 2.83%.Dominated cations in the soil are Na^＋,K^＋,Mg^2＋,whereas dominated anion in the soil are SO4^2-and CL^-in the 0～10 cm soil layers.The correlation between Na＋ and CL^-content is positive and extremely significant,that between K^＋ and HCO3^- content is significantly positive.The correlation between salt content and conductivity and TDS are positive significant correlation.

关 键 词：土壤盐渍化 土壤特征 绿洲 开都河流域下游 

分 类 号：S153.6[农业科学—土壤学]