干旱地区农业研究2011，Vol.29Issue(2)：147-151,158,6.
开都河下游灌区土壤盐渍化特征分析
Analysis on the characteristics of soil salinization in the downstream of Kaidu River Irrigation Areas, Xinjiang
摘要
Abstract
Soil salinization is one of primary environmental problems in the sustainable development in the downstream of Kaidu River Irrisation Areas in Xinjiang. Based on field survey, GPS location and soil analysis, soil salinization levels and distribution are investigated, and the characteristics of soil salinization in different spatial changes were analyzed. Using the analysis of correlation and regression to study the relations between the soil compositions, the results showed that the lands in the area are mostly of alkali soil with pH value greater than 8.0 and high in salt content, and salts content rate mostly in the 0 ～ 10 cm surface layer, it accounts for 2.83％. Dominated cations in the soil are Na+, K+ and Mg2+ , whereas anions in the soil are SO42- and Cl- in the 0 ～ 10 cm soil layers. The conelation between Na+ and CI- content is positive and extremely significant, between K+ and HCO3- content significantly positive. All these findings further suggest that the soils are heavy chloride saline soils. The correlation between salt content and conductivity and TDS are positive significant. Regression analysis indicted: the level of soil salinization is indicted by the conductivity and TDS.关键词
土壤盐渍化/土壤特征/土壤含盐量/开都河下游灌区Key words
soil salinization/ soil characteristics/ soil salt content/ the downstream of Kaidu River Irrigation Areas分类
农业科技引用本文复制引用
李新国,樊自立,李会志,任云霞..开都河下游灌区土壤盐渍化特征分析[J].干旱地区农业研究,2011,29(2):147-151,158,6.基金项目
国家自然科学基金项目(41061025) （41061025）
自治区高校科研计划青年教师科研基金项目(XJEDU2009S69) （XJEDU2009S69）
