暗管排水对滨海新垦区土壤盐分动态的影响及脱盐效果  

Effects of Subsurface Drainage on Soil Salt Dynamics and Salinity Reduction in New Coastal Reclamation Zone

作　　者：邵孝侯[1] 刘才良[1] 俞双恩[1] 蒋凤鸣 章瑞华 陈辉林 

机构地区：[1]河海大学农田水利工程系,上海市农场管理局,上海市五四农场

出　　处：《河海大学学报（自然科学版）》1995年第2期88-93,共6页Journal of Hohai University(Natural Sciences)

摘　　要：作者在上海五四农场沿海滩涂垦区进行了为期两年的田间试验，对暗管排水条件下土壤盐分动态及脱盐效果作了监测分析和研究。试验结果表明，塑料暗管排水对降低１ｍ土体中的盐分效果明显，土壤含盐量由试验前的０．１８７％～０．２５６％降至０．１３０％左右。发展暗管排水，对改良盐渍土和防止次生盐渍化具有重大的实践意义。wo-year field experiments were conducted in a coastal reclamation zone of Shanghai Wushi Farm,monitoring soil salt dynamics under subsurface drainage。The results obtained indicate that subsurface drainage has evident effects in decreasing salinity of 0～1 m soil layer,the total salt content being decreased from 0.187～0.265%before the experiment to 0.130%in May,1992.Subsurface drainage is of practical significance in reclaiming saline soils and preventing secondary salinization.

关 键 词：暗管 排水 土壤 盐分 脱盐 盐渍化 

分 类 号：S276.72[农业科学—农业水土工程]