非充分灌溉对寒地井灌稻田耗水规律的影响  

Influence of Deficit Irrigation on Water Consumption Laws of Well Irrigation Rice in Cold Region of China

作　　者：聂晓[1] 王毅勇[2] 

机构地区：[1]湖北文理学院,湖北襄阳441053 [2]中国科学院东北地理与农业生态研究所,长春130012

出　　处：《灌溉排水学报》2015年第9期72-75,共4页Journal of Irrigation and Drainage

基　　金：中国科学院知识创新工程重要方向项目(KZCX2-YW-Q06-03);长春市现代农业发展支撑计划项目(12XN38)

摘　　要：通过田间试验,研究了不同灌溉方式下(间歇灌(IT)、湿润灌(MT)和淹灌(CSF))寒地井灌稻田的耗水规律和水分利用效率。结果表明,非充分灌溉(IT、MT)和淹灌处理在整个生育期内的耗水量、蒸散量、渗漏量差异显著(P<0.05),与淹灌相比,间歇灌、湿润灌分别节水17.0%和21.4%。非充分灌溉(IT、MT)在节约水资源的同时还能提高产量,显著提高水稻的水分利用效率(WUE),与淹灌相比,间歇灌、湿润灌的水分利用效率分别提高了35.7%、50.0%。湿润灌的节水和增产效果都略优于间歇灌,但差异并不显著。The water consumption laws and water use efficiency of rice were studied in cold region of China under intermittent irrigation（IT）,moisture irrigation（MT）and continuous flooding irrigation conditions（CSF）.The results showed that compared with CSF treatment,water amounts of IT and MT treatments reduced by 17.0%and 21.4%,respectively;the total water consumption,evapotranspiration and soil percolation of deficit irrigation treatments（IT,MT）were significantly different with those of CSF treatment（P0.05）.Water use efficiencies of IT and MT treatments increased by 35.7%and 50.0%,respectively,and were significantly different with that of CSF treatment（P0.05）.The deficit irrigation treatment（IT,MT）could extensively reduce water consumption and significantly increase rice yield.Water-reducing and yield-increasing effects of MT treatment were slightly better than those of IT treatment,but the differences were not significant.

关 键 词：寒地井灌稻田 间歇灌 湿润灌 耗水规律 水分利用效率 

分 类 号：S511.22[农业科学—作物学]