不同灌水频率棉花膜下滴灌土壤水盐运移规律研究  

A Study on the Transportation Law of Water and Salt in Soil under Different Frequencies of Mulching-film Drip Irrigation of Cotton

作　　者：吴争光[1] 虎胆.吐马尔白 张金珠[1] 王一民[1] 弋鹏飞[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》2009年第4期50-54,共5页Journal of Xinjiang Agricultural University

基　　金：国家自然科学基金项目(50669007);国家科技支撑项目(2007BAD38B01);新疆自治区科技攻关重大专项(200731137-1);新疆自治区自然科学基金(200821172);新疆水利水电工程重点学科资助

摘　　要：以新疆石河子棉区为例,在相同灌溉定额条件下,对不同灌水频率的棉花膜下滴灌土壤水盐运移的规律进行了研究。结果分析表明,在相同灌溉定额情况下,采用高频灌溉可以明显提高土壤含水率,对于灌溉定额为5 250 m3/hm2的处理,其洗盐的效果比3 300 m3/hm2和3 900 m3/hm2的效果明显要好,可有效抑制土壤返盐。Taking cotton region of Shihhotze in Xinjiang as an example,this article studies on transportation law of water and salt in soil on condition of the same amount of irrigated water as well as different irrigation frenquencies. Through analysing and studing, the result shows that high frequency irrigation remarkably increases water ratio in soil under the same irrigation quota condition. The effects of leaching salt of Irrigation quota of 5 250 m^3/hm^2 are better than that of both of 3 300 m^3/hm^2 and of 3 900 m^3/hm^2 , which can effectively control uprise of salt in soil.

关 键 词：棉花 膜下滴灌 灌水频率 水盐运移 

分 类 号：S152.72[农业科学—土壤学]