摘要
根据2009年伊犁河流域土壤盐分与地下水条件的监测和取样分析资料,运用灰色关联分析法,对伊犁河流域3月、6月、9月与11月的土壤盐分与地下水埋深、矿化度、电导率、pH值与主要离子进行了关联分析。分析研究表明:研究区表层土壤盐分平均含量为1.37 g kg-1,属于轻度盐渍化土壤。地下水矿化度平均值为2.50 g L-1,属于微咸水。在关联排序中,地下水埋深、矿化度、电导率、SO42-、Cl-、Mg2+、Na+与土壤盐分变化的关联性较强;地下水pH、K+与Ca2+与土壤盐分变化的关联度低,均小于0.321;地下水Mg2+含量与土壤盐分关联度最高,为0.606。灌溉对地下水pH、矿化度、电导率、Mg2+、Cl-离子变化的影响不大,而对地下水埋深、Na+、SO42-、K+与Ca2+离子变化的影响较明显。为了防止土壤次生盐渍化,应该加强对地下水中Mg2+、Na+与Cl-离子的控制与管理。
Based on monitoring and sample analysis of soil salinity and groundwater conditions in Ill River Valley in 2009, a correlative analysis was made on the depth, salinity, EC, pH, main ions of groundwater and soil salinity in March, June, September and November. Results showed that the average salinity of soil in study area was 1.37 g kg-1, belonging to slightly saline soil. The average salinity of groundwater was 2.50 g L^-1, belonging to slightly saline water. Soil salinity has stronger correlation with the depth, salinity, EC, SO4^2-, Cl-, Mg2＋ and Na＋ of groundwater. Soil salinity has less correlation with pH, K＋ and Ca2＋ of groundwater. Irrigation has less influence on the change of pH, salinity, EC, Mg2＋ and Cl- concentrations of groundwater, and has much influence on the change of the groundwater depth, Na~, SO42-, K＋, Ca2＋ concentrations of groundwater. Mg2＋ Na＋ and Cl- concentrations of groundwater should be taken more attention for controlling and managing secondary soil salinization in the area.
出处
《土壤通报》
CAS
CSCD
北大核心
2013年第3期561-566,共6页
Chinese Journal of Soil Science
基金
国家自然科学基金项目(41201032
U1138302
40971020)
新疆师范大学博士科研启动基金项目(XJNUBS1212)
新疆干旱区湖泊环境与资源实验室开放课题(XJDX0909-2012-01)
教育部人文社会科学研究项目(11XJJCZH003)资助
