干旱内陆区竖井灌排下土壤碱化风险分析——以新疆哈密盆地为例  

Analysis on the Risk of Soil Basification in Arid Inland Area under Shaft Well Irrigation——A Case Study in Hami Basin

作　　者：杨鹏年[1] 刘丰[1] 王水献[1] 

机构地区：[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052

出　　处：《新疆农业大学学报》2008年第1期90-92,共3页Journal of Xinjiang Agricultural University

基　　金：教育部科学技术研究重点项目(206164);新疆维吾尔自治区高等学校科研计划项目(XJEDU2005I11);新疆水利水电工程重点学科项目

摘　　要：通过对内陆干旱区地面灌与井灌条件下土壤水盐运移规律的分析,指出地面灌下盐分随地下水位的波动而变化,地表处于周期性的积盐与脱盐;而竖井灌排影响下的土壤则在整个剖面上均表现出脱盐的趋势,但同时却又存在发生碱化的风险及地下水矿化度的提高。为了预防土壤的盐渍化,必须加强对灌区水盐动态的监测。The paper analyses the movement characteristics of soil salt in Hami Basin, Xinjiang. The au- thor pointed out that salt content changes with groundwater level. The surface soil is at the state of salt deposit and desalination conversion. However,soil content was decreased on the whole profile on the condition of shaft well irrigation. At the same time,soil may have the risk of alkalization. In order to prevent salt-alkalization of soil,the survey network of water and salt should be established. Through the observing the irrigation area, the problem of soil salinization can be found in time.

关 键 词：竖井灌排 碱化 内陆干旱区 

分 类 号：S278[农业科学—农业水土工程]