次生盐渍化棉田膜下滴灌盐分运移规律研究  

Research on Salt Transfer Law at the Condition of Drip Irrigation at the Secondary-salinized Cotton Field

作　　者：张伟[1,2] 吕新[2] 马云峰[1] 李鲁华[1,2] 张小伟[3] 孙肇君[1,2] 

机构地区：[1]石河子大学农学院,新疆石河子832003 [2]新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子832003 [3]新疆生产建设兵团农六师农业科学研究所,新疆五家渠831300

出　　处：《湖北农业科学》2010年第5期1089-1091,1100,共4页Hubei Agricultural Sciences

基　　金：国家科技支撑计划项目(2007BAC17B06);石河子大学高层次人才科研启动资金专项(RCZX200611);石河子大学"263"青年骨干教师资助计划项目(NX05008);新疆生产建设兵团农六师科技攻关项目(2007CCWAO-27)

摘　　要：通过不同土壤质地和不同滴灌年限两个方面,对棉田膜下滴灌盐分的运移规律进行研究。结果表明,对于不同土壤质地,壤土中的盐分分布较粘土呈现更规律的变化;不同滴灌年限中,滴灌年限越长,棉田中的盐分积累就越多。分析认为定期大水漫灌洗盐、做好春季复水工作以及恢复排灌渠作用可作为土壤脱盐的必要手段。In this paper the law of salt transfer at the condition of drip irrigation was studied under different soil textures and different drip periods. The results showed that the distribution law of salt in loam soil was more obvious that in clay soil. And the longer of drip irrigation of period, the heavier of salt accumulation in the soil. Three ways such as using flood irrigation to flush salt periodically, executing the irrigation in spring and resuming alkali-drainage-channel should be necessary for soil desalination.

关 键 词：膜下滴灌 土壤 盐分运移 

分 类 号：S156.46[农业科学—土壤学]