干旱内陆河灌区灌溉条件下土壤水盐运移规律分析  

Analysis of Water and Salt Transport in Soil Under Irrigation Condition in Arid Inland River Irrigatson Region

作　　者：张书兵 王俊[2,3] 姜卉芳[2] 肖俊[4] 

机构地区：[1]伊犁州喀什河管理处 [2]新疆农业大学水利与土木工程学院 [3]新疆水利水电勘测设计研究院,乌鲁木齐,830000 [4]新疆水利水电勘测设计研究院

出　　处：《水土保持研究》2008年第2期151-153,共3页Research of Soil and Water Conservation

基　　金：国家“863”计划(2002AA2Z4201)

摘　　要：利用中子水分仪和负压计对干旱内陆河灌区田间土壤水、盐及地下水动态进行监测,结果表明:在全生育期里,积盐脱盐交替频繁,交替周期与灌水周期对应;超大水量冬灌方式是导致灌区土壤盐溃化恶性循环的主要原因;对农田土壤盐分的定点实时监测,能够定量表征农田生态环境状况优劣;地下水位埋深变化,可警示农田盐渍化的演变,对调整灌溉定额采取预防措施有指导意义。According to dynamic analysis of monitoring experiment for soil water-salt and ground water transport in soil in arid inland river irrigation region with. neutron machine and ensiometer. It is concluded that during the whole growth,salt desalination changes frequently,alternating cycles with the water cycle counterparts and winter irrigation with exceedance water is the main reason formaking for vicious circle of soil salinization. Regularmonitoring in same point for soil salt in field can quantitative show state of ecology environment changing;Groundwater fluctuation can warn development of agricultural field salinization,It can help leader adjust irrigation quota and adopt preventing measure.

关 键 词：干旱内陆河灌区 水盐监测 水盐运移 

分 类 号：S157.2[农业科学—土壤学] S274[农业科学—农业基础科学]