灌溉排水学报2011，Vol.30Issue(4)：39-43,5.
不同矿化度水淋洗重度盐碱土的水盐运移特征
Water and Salt Transporting Feature of Soil with Different Degree Mineralization of Water Leaching Severe Saline-alkali Soil
摘要
Abstract
An indoor soil column experiment was carried out to investigate the water and salt transporting characteristics of severe saline-alkali soil,which was leached with different salinity of water.The results indicated that the soil infiltration rate of mincro-saline and saline water was obviously higher than that of fresh water.The soil salinity desended significantly after irrigation and the soil desalinization effect by leaching with fresh and mincro-saline water was better.After irrigation,soil pH and the concentrations of CO3^2- and HCO-3 increased in the three treatments soil,while the concentrations of Na^＋,Cl^-,SO4^2-,K^＋,Mg^2＋ and Ca^2＋ decreased,soil pH of leached with fresh water increased greatly.Among the three degree mineralization of water,the mincro-saline water has the best comprehensive effect of leaching severe saline-alkali soil.Therefore,replacements of fresh water with mincro-saline water shoud have better leaching effects.关键词
重度盐碱土/水盐运移/微咸水/淋洗/脱盐Key words
severe saline-alkali soil/water and salt transport/mincro-saline water/leaching/desalting分类
农业科技引用本文复制引用
王艳,吴勇,廉晓娟,王正祥,张余良,贺宏达..不同矿化度水淋洗重度盐碱土的水盐运移特征[J].灌溉排水学报,2011,30(4):39-43,5.基金项目
国家科技支撑计划项目(2007BAD67B012009BADA3B03) （2007BAD67B012009BADA3B03）
