组合式滴灌水分运动规律试验研究  

Experimental Study on Soil Water Movement under United Drip Irrigation

作　　者：刘斌[1] 刘洪光[1] 何新林[1] 龚萍[1] 叶建威[1] 谢锋[1] 刘顺强[1] 王东[1] 

机构地区：[1]石河子大学水利建筑工程学院,现代节水灌溉兵团重点实验室,新疆石河子832000

出　　处：《灌溉排水学报》2013年第4期28-31,共4页Journal of Irrigation and Drainage

基　　金：水利部公益性行业科研专项经费项目(201101050)

摘　　要：组合式滴灌模式下,地下和地面滴灌带湿润锋交汇所需时长平均为23.8h;地面滴灌带湿润锋水分交汇所需时长平均为14.4h。灌水历时8h处理土壤存在水分无效截面;灌水历时10h处理土壤有效截面范围宽40cm左右,长120cm,土壤有效截面水分分布范围更利于葡萄根系的生长;灌水历时12h处理土壤有效截面宽50～60cm,长120cm,但地下滴灌带下方60cm处土壤含水率超过田间持水率。组合式滴灌下以灌水历时10h为宜。Characteristics of showed that. under the unite soil water movement under united drip irrigation were studied. The results d drip irrigation, the intersection time of wetting distance in underground and surface drip irrigation zones was 23. 8 h while the intersection time in surface drip irrigation zones was 14.4 h. With irrigation times of 8 h and 10 h, soil width of the effective cross-section was 40 cm and length was 120 cm~ Generally the soil effective cross-section range was more conducive to the grape root growth, and there was no deep percolation. With irrigation time of 12, soil width of the effective cross-section was 50~60 cm and length was 120 cm~ but soil moisture below 60 cm exceeded field capacity under the under- ground drip tape. Irrigation time of 10 h was appropriate under united drip irrigation.

关 键 词：组合式滴灌 水分运动规律 试验研究 

分 类 号：S275.6[农业科学—农业水土工程]