| 灌区尺度作物水分利用效率指标研究 |
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| 引用本文： | 王静,伍靖伟,郭宗信,范岳,陈浩锐.灌区尺度作物水分利用效率指标研究[J].灌溉排水学报,2008,27(5):63-66. |
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| 作者姓名： | 王静 伍靖伟 郭宗信 范岳 陈浩锐 |
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| 作者单位： | [1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [2]河北省石津灌区管理局,石家庄050061 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)子课题 |
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| 摘 要： | 在对灌区来水、作物产量和作物需水量尺度分析的基础上,研究了灌区尺度作物水分利用效率指标,结果表明,冬小麦、夏玉米、棉花不同的生育期对采用哪种水分利用效率指标有直接影响;灌溉、降雨、地下水补给等资料较全时,3种作物都采用WUEET;无降雨资料时,冬小麦可选用WUEi近似代替WUEET;正常年份,夏玉米的WUEP0就是WUEET,干旱年份且需夏灌时,夏玉米WUEET由有效降雨量与灌溉量共同产生;棉花不能用WUEi或WUEP0中的任何一种指标反映其真实的水分利用效率,而只能用WUEET确定。
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| 关 键 词： | 灌区尺度 灌溉水分利用效率(WUEi) 有效降水水分利用效率(WUEP0) 田间水分利用效率(WUEET) |
Crop Water Use Efficiency Indicators in Irrigation Area |
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| WANG Jing,WU Jing-wei,GUO Zong-xin,FAN Yue,CHEN Hao-rui.Crop Water Use Efficiency Indicators in Irrigation Area[J].Journal of Irrigation and Drainage,2008,27(5):63-66. |
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| Authors: | WANG Jing WU Jing-wei GUO Zong-xin FAN Yue CHEN Hao-rui |
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| Institution: | WANG Jing1,WU Jing-wei1,GUO Zong-xin2,FAN Yue1,CHEN Hao-rui1(1.State Key Laboratory of Water Resources , Hydropower Engineering Sciences,Wuhan University,Wuhan 430072,China,2.Shijin Irrigation Area Authority,Shijiazhuang 050061,China) |
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| Abstract: | Based on scale analyzing for water supply situation,crop yield and crop water requirement,the paper studied crops water use efficiency(WUE) indicators in irrigation scale,and results showed that different growing periods for winter wheat,summer corn,cotton had direct impact on which WUE indicators could be adopted;the three crops all adopted field WUE under irrigation,rainfall,underwater recharge data co-existing;no rainfall information,winter wheat's irrigation WUE might approximately substitute for field ... |
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| Keywords: | irrigation area scale irrigation water use efficiency(WUEi) efficient rainfall water use efficiency(WUEP0) field water use efficiency(WUEET) |
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