玉米地埋式滴灌土壤水分迁移规律研究  

Study on Soil Moisture Distribution of Buried Drip Irrigation of Corn

作　　者：田建斌 齐广平[2] 

机构地区：[1]甘肃省景泰川电力提灌管理局,甘肃景泰730400 [2]甘肃农业大学工学院,甘肃兰州730070

出　　处：《甘肃农业科技》2017年第11期7-11,共5页Gansu Agricultural Science and Technology

基　　金：甘肃省青年基金项目"麦秸-塑膜复合覆盖对土壤水热及环境的影响机制"(145RJYA281)部分内容

摘　　要：在地埋式滴灌条件下,对不同毛管埋深及间距对大田玉米土壤水分迁移规律进行了研究。结果表明,毛管在同一埋设深度时,随着铺设间距的增大,肉眼观察到的横向湿润锋交汇深度也加深。毛管埋设深度为30 cm、间距为60、70、80 cm时,其湿润锋交汇的土层深度分别为0~10、10~20、15~20 cm;毛管埋设深度为35 cm、间距为60、70、80 cm时,其湿润锋交汇的深度土层分别为0~10、30~35、30~35 cm;毛管埋设深度为40 cm、间距为60、70、80 cm时,其湿润锋交汇的土层深度分别为10~20、20~30、25~30 cm。This paper discussed the different capillary depth and space between of the buried drip irrigation what the soil moisture is migration regular. The result shows that when the capillary in the same buried depth, with the increase of laying spacing, the macroscopic observation to the lateral also deepen the depth of wetting front intersection. Such as the capillary embedding depth is 30 era, spacing is 60, 70, 80 cm, the depth of wetting front intersection soil respectively 0 ~ 10, 10 ~ 20, 15 ~ 20 era; The capillary embedding depth is 35 cm, the spacing is 60, 70, 80 cm, the depth of wetting front intersection soil respectively 0 ~ 10, 30 to 35, 30 - 35 cm; The capillary embedding depth is 40 cm, the spacing is 60, 70, 80 cm, the depth of wetting front intersection soil respectively 10 ~ 20. 20 ~ 30. 25 ~ 30 cm.

关 键 词：地埋式滴灌 玉米 毛管埋深 毛管间距 水分迁移 

分 类 号：S277[农业科学—农业水土工程]