控制排水对大棚土壤盐分的影响  

Effects of Controlled Drainage on Soil Salinity in Green-house

作　　者：周复雄[1] 吴伟峰 孙怀卫[1] 王修贵[1] 韩春玲[1] 袁永坤 戴怀阔 

机构地区：[1]武汉大学水资源与水电工程国家重点实验室,武汉430072 [2]上海市水利管理处,上海200002 [3]上海市青浦区水利技术推广站,上海201707

出　　处：《灌溉排水学报》2010年第1期15-18,共4页Journal of Irrigation and Drainage

基　　金：国家863计划项目(2006AA100207);国家科技支撑计划项目(2006BAD11B06)

摘　　要：用定期取土样测定其电导率的方法,监测大棚控制排水2个月后不同深度的土壤盐分变化。结果表明,土壤盐分脱减量与地下水埋深为正相关关系,控制排水能有效地控制地下水埋深,影响土壤盐分的变化,且随着控制深度的加大,地下水埋深增大,土壤盐分脱减量变大。控制排水对于减轻渍害威胁和控制土壤盐分积累有明显的效果。Soil electrical conductivity, soil water content and groundwater table in greenhouse with controlled drainage were collected. It is found that the soil salt decrement is positive correlation with the groundwater table and that controlled drainage can control water table effectively and affect the soil salinity content. Groundwater table decreases and the soil salinity decrement increases when the controlled drainage depth becomes greater. Controlled drainage can obviously lighten salinization-alkalization and waterlogging.

关 键 词：控制排水 渍害 大棚 土壤盐分控制 

分 类 号：S276.1[农业科学—农业水土工程]