滴灌棉田水盐运移规律研究  

Migration Law of Water and Salt in Drip Irrigation Cotton Fields

作　　者：杨九刚[1,2] 马英杰[2] 马亮[2] 洪明[2] 

机构地区：[1]若羌河米兰河流域管理处,新疆若羌841800 [2]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052

出　　处：《节水灌溉》2012年第11期25-29,共5页Water Saving Irrigation

基　　金：国家高技术研究发展计划"863"项目(2006AA100218);国家科技支撑项目(2007BAD38B09)

摘　　要：为探究滴灌棉田土壤水盐运移的规律,进行了滴灌棉田测坑实验。研究表明:在不受外界因素干扰时,无论滴灌带布设方式是1膜1管还是1膜2管,棉田的盐分分布规律都成椭球形,大致可分为3个区:淡化区、积盐区及高积盐区;并且在相同的灌溉定额和灌水频次时,1膜1管较1膜2管的排盐形成的椭球半径大,而1膜2管的排盐水分利用率较1膜1管高。In order to explore the migration law conducted. The results tape or a film-two tape, the dilute zone, the salt show that under the co the distribution shape accumulation zone and of soil water and salt in drip irrigation cotton field, the field test pit experiments are ndition without interference of external factors, no matter the layout mode is a film-a of salt in the cotton fields is spheroid, which can be divided into three zones, namely the high salt accumulation zone; in addition, under the same irrigation quota and frequencies, the ellipsoidal radius of the a film-a tape treatment is bigger than that of a film-two tape treatment, while the water use ef ficiency for excreting salt of the latter is higher than that of the former.

关 键 词：膜下滴灌 棉花 运移规律 

分 类 号：S275.6[农业科学—农业水土工程]