灌溉条件下秸秆覆盖麦田耗水特性研究  

Study of Water Consumption Characteristics in Straw Mulching Winter Wheat Field under Irrigation Conditions

作　　者：李全起[1] 陈雨海[1] 于舜章[1] 吴巍[1] 周勋波[1] 董庆裕[1] 余松烈[1] 

机构地区：[1]山东农业大学农学院,山东泰安271018

出　　处：《水土保持学报》2005年第2期130-132,141,共4页Journal of Soil and Water Conservation

基　　金：中国科学院禹城综合试验站开放课题基金项目 (yc2 0 0 2 0 0 6);聊城市国家计委大型优质小麦生产基地项目 (2 0 0 2 1 1 0 6)

摘　　要：试验于2 0 0 2 2 0 0 3年在中科院禹城综合试验站完成,研究了秸秆覆盖和灌溉对冬小麦农田耗水特性的影响,结果表明:秸秆覆盖能够增强灌溉水的入渗能力。随着灌溉量的增加,秸秆覆盖减少深层底墒水(SMBS)的消耗。灌溉显著增加冬小麦的耗水强度,返青后,覆盖处理冬小麦的耗水强度大于不覆盖处理。在播种到返青期间,覆盖比不覆盖处理平均少蒸散5 2 2 5mm。返青后,覆盖处理的阶段耗水量大于不覆盖处理。The experiment was conducted at Yucheng Comprehensive experimental station of CAS to study water consuimption characteristics in straw mulching winter wheat field under different irrigation conditions. The results showed: that straw mulching could raise penetrate abilities of irrigation water. With irrigation quantities increased, straw mulching could reduce deep SMBS consumption. Water consumption density was evidently increased after irrigation. After getting up of winter wheat, water consumption density of mulched treatments were much higher than those of without mulched treatments. From planting to getting up growth stages, evaporation quantity of mulched treatments were higher than without treatments 52.25 mm. After getting up growth stage, consume water quantity in different growth stages of mulched winter wheats were higher than those of without mulched, but there were not obviousely differences of total consume water quantity between mulched and without mulched treatments.

关 键 词：秸秆覆盖 特性研究 灌溉条件 2002-2003年 麦田 耗水强度 冬小麦 耗水特性 25mm 耗水量 试验站 中科院 灌溉水 灌溉量 底墒水 返青期 农田 播种 蒸散 

分 类 号：S513[农业科学—作物学] S562