集雨措施对滨海盐碱林地水盐运动影响研究  

Study on Effects of Rainwater Harvesting on Water and Salt Movement on Marine Saline-alkaline Forestation

作　　者：赵名彦[1] 丁国栋[1] 郑洪彬 张莉[1] 贾丽娜[1] 张佳音[1] 崔利强[3] 

机构地区：[1]北京林业大学·教育部水土保持与荒漠化防治重点实验室,北京100083 [2]河北省沧州市临港经济技术开发区农务局,沧州061100 [3]内蒙古农业大学,呼和浩特010019

出　　处：《水土保持学报》2008年第6期52-56,共5页Journal of Soil and Water Conservation

基　　金：国家科技支撑计划项目“盐碱地(滨海)造林技术研究”(专题编号:2006BAD03A03)

摘　　要：通过田间试验．研究了临港开发区滨海盐碱林地集雨措施下的水盐运动。结果表明：在大于2mm降雨量时，集雨林地单位面积集水量是降雨量的7．5～8．7倍，集雨措施显著提高降雨的利用效率；集雨措施明显抑制了表层土壤（0-10cm）的积盐和返盐；在没有持续大雨的情况下，集雨处理的可保持0—40cm土层盐分变化平稳；集雨处理还抑制了降雨和蒸发对土壤剖面水盐运动的强烈影响。The field experiments were conducted to study the effects of rainwater harvesting on water and salt movement on marine saline-alkaline forestation in Cangzhou Coastal Eco. ＆ Teeh. Development Zone. The result revealed that harvesting rainwater measures, can not only significantly improved rainwater use efficiency, which was because it collected 7. 5 to 8.7 times rainfall more than natural ones when the rain larger than 2 millimeters, but also prevented the 0 to 10 millineter layer from secondary salinization. Furthermore, if there was no continuance heavy rain, harvesting rainwater can keep the smooth changes of soil profile salt content, and it obviously restrained the effects of rainfall and evaporation on the water and soil movement fiercely changes.

关 键 词：集雨 水盐运动 滨海盐碱地 

分 类 号：S152.7[农业科学—土壤学] S156.4[农业科学—农业基础科学]