灌溉排水学报2013，Vol.32Issue(5)：55-58,4.DOI:10.7631/j.issn.1672-3317.2013.05.013
咸水滴灌淋洗土壤盐分的试验研究
Leaching Effect of Drip Irrigation with Saline Water on Soil Salt
摘要
Abstract
Simulating experiment was carried out to study three-dimensional leaching effect of different saline water mounts on soil salt of eaolian sandy soil and determine irrigation amount of preventing salt-injury to shelterbelt plants.The results showed that after drip-irrigation with saline water,there were desalted zones that surface radius was smaller and intermediate radius was bigger under drip emitter.In the zones,soil water content decreased and soil salt content increased gradually from the drip emitter to wetting front.The largest leaching depth,maximum horizontal radius and the depth of the maximum horizontal radius under drip irrigation with saline water increased logarithmically with the increase of leaching water amounts.Salt-injury of Calligonum planted for two years could be prevented with irrigation quantity of 37.56 L under drip irrigation with saline water.Drip irrigation with saline water could prevent salt-injury.关键词
咸水/滴灌/淋洗/风沙土/土壤盐分Key words
saline water/ drip-irrigation/ leaching/ aeolian sandy soil/ soil salt分类
农业科技引用本文复制引用
张建国,徐新文,雷加强,李生宇..咸水滴灌淋洗土壤盐分的试验研究[J].灌溉排水学报,2013,32(5):55-58,4.基金项目
国家自然科学基金项目(40901137,41030530,41271341,41101201) （40901137,41030530,41271341,41101201）
陕西省自然基金项目(2011JQ5009) （2011JQ5009）
中国科学院"西部之光博士专项"(XBBS200908) （XBBS200908）
中科院干旱区生物地理与生物资源重点实验室开放课题基金项目(LBBS-2010-009) （LBBS-2010-009）
西北农林科技大学博士科研启动项目(Z109021003) （Z109021003）
西北农林科技大学基本科研业务项目(Z111020906) （Z111020906）
