荒漠绿洲区交替灌溉小麦/玉米间作水分利用特征研究  

Water utilization in alternative irrigation under wheat-maize intercropping system in oasis areas

作　　者：杨彩红[1] 柴强[1] 黄高宝[1] 

机构地区：[1]甘肃农业大学农学院,兰州730070

出　　处：《中国生态农业学报》2010年第4期782-786,共5页Chinese Journal of Eco-Agriculture

基　　金：国家科技支撑计划项目(2007BAD46B06;2007BAD89B17);国家自然科学基金项目(30771264);甘肃省青年创新人才扶持计划资助

摘　　要：大田试验研究了小麦/玉米间作田小麦、玉米带交替供水对作物耗水特性、产量和水分利用效率(WUE)的影响。结果表明:在同等供水水平下,交替灌溉小麦/玉米间作全生育期的棵间蒸发量比传统灌水处理减少44.0mm,总耗水量增加15.4mm,产量和WUE分别提高13.92%和9.21%,说明交替灌溉是提高间作产量和WUE的可行措施之一。交替灌溉条件下,小麦/玉米间作全生育期的棵间蒸发量、耗水量随供水水平的提高而增加,但WUE随供水量的增加而降低。A field experiment was carried out to investigate the effect of alternative irrigation on water consumption, yield and water use efficiency （WUE） under wheat-maize intercropping in the oasis region of Shiyang River Basin, Gansu Province. The results indicate that evaporation for alternative irrigated intercropping system （AI） decreases by 44.0 mm compared to conventional irrigated intercropping system （CI）. Water consumption under AI also increases by 15.4 mm while yield and WUE are respectively enhanced by 13.92% and 9.21% compared to CI. All these results show that alternative irrigation is an effective and practicable way to improve yield and WUE of wheat-maize intercropping. Although evaporation and water consumption in alternative irrigated intercropping system increase with increasing irrigation quota, overall WUE actually decreases.

关 键 词：间作 棵间蒸发 交替灌溉 水分利用效率 

分 类 号：S275.9[农业科学—农业水土工程] S344.2[农业科学—农业工程]