渗水地膜全覆盖对高含盐土壤水盐运移的影响  

Effects of Water-Permeability Plastic Film Mulching Entire Cover to Water and Salt Migration Under High Initial Soil Salt Content

作　　者：苏冬阳[1,2] 樊贵盛[3] 

机构地区：[1]太原理工大学环境科学与工程学院,山西太原030024 [2]山西省水利水电科学研究院,山西太原030002 [3]太原理工大学水利科学与工程学院,山西太原030024

出　　处：《人民黄河》2012年第8期105-106,109,共3页Yellow River

基　　金：山西省科技攻关项目(2007031070)

摘　　要：为了提高旱作农田降雨的利用效率,解决高含盐土壤水分入渗及盐分淋洗效果等问题,在晋北应县进行了渗水地膜全覆盖土壤积水入渗试验。结果表明:高含盐土壤经过覆盖渗水地膜处理后的入渗量小于不做处理的土壤,且其入渗速度比较稳定,有利于积水均匀地下渗;在全覆盖渗水地膜的情况下,盐分运移的平衡点在40 cm深土壤处。通过渗水地膜全覆盖可有效降低高含盐土壤在0～40 cm土层的含盐量,并能保证耕层土壤的盐分淋洗效果。In order to improve the rainfall utilization efficiency in dry-land region and solve the problems of moisture infiltration and salinity elu- tion effect in the high salinity soil, the water-permeability experiment of soil water percolation through mulching plastic film with permeability was carried out in Yingxian conty in north of Shanxi. The results indicate that： through the water-permeability plastic film mulching entire cover, the infiltration of the soil with high salinity is less than unhandled, and the infiltration rate is stable, which is good for water infiltration evenly ; the balance point of salt movement is 40 cm deep in soil covered entirely by plastic film with permeability. The salinity in 0 ~ 40 deep in the soil will be decreased effectively through entirely covering the plastic film with permeability, and the method can guarantee the salinity elution effects in the plough layer also.

关 键 词：渗水地膜 水盐运移 高含盐土壤 原生盐碱荒地 

分 类 号：S607[农业科学—园艺学]