排灌机械工程学报2018，Vol.36Issue(4)：347-353,7.DOI:10.3969/j.issn.1674-8530.17.0103
膜下滴灌盐碱地排水工程控盐效果试验研究
Experimental study on salt controlling effect in drainage system in saline-alkali land with drip irrigation under mulch
摘要
Abstract
In order to control the soil salinization,a series of tests were carried out on a piece of saline alkali land in Xiayedi irrigation district of Manasi in Xinjiang,where the subsurface drainage was arranged based on the existing rows and farm ditch.The salt controlling effect in the drainage system combined with the subsurface drainage and the ditch drainage in the saline-alkali land with drip irrigation under mulch was studied experimentally.The sampling points were set at 8 m,16 m,and 24 m of the ditch drainage and the subsurface drainage respectively.The underground water table and soil salinity at depths of 0-200 cm were observed,during the different seasons of 2012-2014.The results show that both the subsurface drainage and the ditch drainage can control the underground water table,ranging from 1.6m to 2.2 m in the ditch draining area and ranging from 1.5m to 2.2m in the subsurface drainage area.Compared with the year 2012,soil total salt of each sampling point at depths of 0-200 cm in the subsurface drainage area decreases by 42.99％,36.84％ and 24.41％ in 2014.At the root layer,soil total salt of each sampling point decreases by 50.34％,40.70％ and 30.76％.For the ditch drainage,soil total salt of each sampling point at depths of 0-200 cm decreases by 46.85％,38.12％ and 30.80％.At the root layer,soil total salt of each sampling point decreases by 54.88％,43.39％ and 33.21％.This study provides a reference for saline-alkali land management in arid and semi-arid areas.关键词
盐碱地/明沟排水/暗管排水/排水工程设计/土壤盐分Key words
saline-alkali land/ditch drainage/subsurface drainage/drainage engineering design/soil salinity分类
农业科技引用本文复制引用
阿尔娜古丽·艾买提,刘洪光,何新林,李明思,龚萍..膜下滴灌盐碱地排水工程控盐效果试验研究[J].排灌机械工程学报,2018,36(4):347-353,7.基金项目
国家自然科学基金资助项目(51669029,U1403183,41361071) （51669029,U1403183,41361071）
国家“十三五”重点研发计划项目(2016YFC0501402,2016YFC0501406) （2016YFC0501402,2016YFC0501406）
