膜下滴灌棉田土壤水盐运移规律研究  

Water and Salt Transport of Cotton Field under Film Drip Irrigation

作　　者：龚江[1,2] 赵竹青[1] 谢海霞[2] 候振安[2] 陶睿[2] 李永刚[2] 

机构地区：[1]华中农业大学资源与环境学院,武汉430070 [2]石河子大学农学院,新疆石河子8320032

出　　处：《灌溉排水学报》2014年第2期73-76,共4页Journal of Irrigation and Drainage

基　　金：国家973项目(2009BC825101);石河子大学重点项目(ZRKX2009D02-1)

摘　　要：基于田问试验，分析了不同滴灌年限下棉田土壤水盐变化。结果表明，土壤水分与盐分负相关，滴灌对土壤盐分有淋洗作用，且随着滴灌年限的延长，对土壤盐分淋洗作用减弱。滴灌1a对土壤盐分淋洗作用明显，尤其是对上层土壤（0-40cm）盐分的淋洗作用更明显。Field experiments were conducted to analyze the changes of soil water content and soil salt con- tent of cotton field in different drip irrigation times. The results showed that the soil salt content and soil water content had a negative correlation, and drip irrigation could leak salt. With the extension of drip irri- gation time, the effect of drip irrigation on leaking salt was reduced. Drip irrigation for 1 year had a signifi- cant effect on the leaking of soil salt, especially in 0-40 cm soil.

关 键 词：膜下滴灌 棉田 盐分 水分 动态 

分 类 号：S562[农业科学—作物学]