膜下滴灌棉田土壤盐分变化规律研究  

Research on Change Law of Soil Salinity in Cotton Field by Drip Irrigation Under Plastic Film

作　　者：马合木江.艾合买提 古丽.别克木汗 虎胆.吐马尔白 牟洪臣[1] 

机构地区：[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052 [2]新疆生产建设兵团农十师水利工程管理处,北屯836000

出　　处：《新疆农业大学学报》2011年第1期75-78,共4页Journal of Xinjiang Agricultural University

基　　金：国家自然科学基金项目(51069015);新疆维吾尔自治区自然科学基金项目(200821172);新疆水利水电重点学科基金项目

摘　　要：针对新疆土壤盐碱化开发利用和防止土壤次生盐渍化的问题,通过对不同年限的棉田膜下滴灌土壤盐分的运移研究,从棉花生育期、土壤空间两个方面对不同年限土壤盐分进行分析比对,初步得出：随着生育期的推后,各土层含盐量都有不同程度的加大;垂直方向盐分的积累在40~80 cm土层逐渐增加,80~100 cm土层盐分积累受膜下滴灌影响较小;不同滴灌年限中滴灌年限越长,棉田中的盐分积累就越多。This study was conducted to reveal the problems of developing and using salinization of soil and preventing soil secondary salinization and study transferring soil salt under drip irrigation in cotton field in Xinjiang.The soil salt in soil space and cotton growth period in different years were analyzed.The results show that with the postponing of cotton growth period,the cummulation of salt in different soil layers increase to different extent.The accumulation of salt in vertical direction.in the soil layers increase from 40 to 80 cm,but the salt accumulation in 80-100 cm soil layer is little affected by drip irrigation under plastic film.The longer drip irrigation years,the more the accumulation of salt in cotton field.

关 键 词：生育期 膜下滴灌 盐分运移 土壤含盐量 

分 类 号：S156.46[农业科学—土壤学]