| 灌溉用水效率尺度效应研究评述 |
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| 引用本文： | 陈皓锐,黄介生,伍靖伟,杨金忠. 灌溉用水效率尺度效应研究评述[J]. 水科学进展, 2011, 22(6): 872-880. DOI: 32.1309.P.20111125.1636.008 |
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| 作者姓名： | 陈皓锐 黄介生 伍靖伟 杨金忠 |
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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, 湖北武汉430072; |
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| 基金项目： | 国家自然科学基金资助项目(50809050); “十二五”国家科技支撑计划资助项目(2011BAD25B07)~~ |
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| 摘 要： | 在阐述灌溉用水效率尺度效应内涵及其产生原因的基础上,对研究现状进行了评述,并提出了今后的研究方向。灌溉用水效率尺度效应主要由灌区土壤、作物、气候、灌溉工程、灌溉水量等多种因素的空间变异性和回归水利用导致;现有灌溉用水效率指标应该拓宽供水效益内涵,同时在经济条件约束下来考虑回归水的再利用;现有各类指标随尺度变化规律并不固定,主要原因是尺度效应并非由单一因素决定;现有尺度效应转换研究都是单独针对空间变异或回归水重复利用而进行,缺少对两者的综合,更缺乏成熟的尺度转换公式。今后需要在完善评价指标体系的基础上,重点对尺度转换理论进行攻关,同时还应兼顾水循环伴生过程的尺度效应研究。
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| 关 键 词： | 灌溉用水效率 尺度效应 尺度转换 水分生产率 |
| 收稿时间： | 2011-03-16 |
Review of scale effect on the irrigation water use efficiency |
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| CHEN Hao-rui,HUANG Jie-sheng,WU Jing-wei,YANG Jin-zhong. Review of scale effect on the irrigation water use efficiency[J]. Advances in Water Science, 2011, 22(6): 872-880. DOI: 32.1309.P.20111125.1636.008 |
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| Authors: | CHEN Hao-rui HUANG Jie-sheng WU Jing-wei YANG Jin-zhong |
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| Affiliation: | 1.State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;2.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China;3.National Center for Efficient Irrigation Engineering and Technology Research-Beijing, Beijing 100048, China |
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| Abstract: | A comprehensive review of scale effect(SE) on the irrigation water use efficiency(IWUE) is presented in this study,including the definition and its causes as well as the upscaling techniques.SE is the composite outcome of two main causes that refer to reusing irrigation return flow and the spatial variability of local properties such as soil,crop,climate,irrigation structures,and amount of irrigation water and others.The existing indices of irrigation water use efficiency should be extended to including the... |
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| Keywords: | irrigation water use efficiency scale effect upscaling water productivity |
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