| 作物水生产力评估方法研究 |
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| 引用本文： | 徐凤英,盖迎春,徐中民,王维真.作物水生产力评估方法研究[J].冰川冻土,2013,35(1):156-163. |
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| 作者姓名： | 徐凤英 盖迎春 徐中民 王维真 |
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| 作者单位： | 中国科学院 寒区旱区环境与工程研究所, 甘肃 兰州 730000 |
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| 基金项目： | 中国科学院西部行动计划三期项目"黑河流域生态-水文遥感产品生产算法研究与应用试验"，国家自然科学基金项目"黑河流域中游水-生态-经济模型综合研究" |
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| 摘 要： | 农业用水作为消耗水资源最多的部分, 在全球和区域水资源消耗中占据很大比例. 农业水生产力的评价对于改进区域农业水资源利用方式, 促进农业经济发展具有重要意义, 尤其是在水资源匮乏地区. 首先阐述了作物水生产力的基本概念, 分析了影响作物水生产力的核心要素; 其次总结了作物水生产力的评价方法, 将其分为收获方法、 模型方法和集成遥感或GIS的模型方法, 并分析了这三类方法优缺点; 最后对作物水生产力研究发展趋势进行了展望, 认为将RS或GIS与模型结合用来估算作物水生产力的方法, 将是目前研究的发展方向.
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| 关 键 词： | 作物水生产力 评估方法 作物水生产力模型 |
| 收稿时间： | 2012-09-16 |
| 修稿时间： | 2012-12-12 |
A Review of Evaluation Methods of Crop Water Productivity |
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| XU Feng-ying,GE Ying-chun,XU Zhong-min,WANG Wei-zhen.A Review of Evaluation Methods of Crop Water Productivity[J].Journal of Glaciology and Geocryology,2013,35(1):156-163. |
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| Authors: | XU Feng-ying GE Ying-chun XU Zhong-min WANG Wei-zhen |
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| Institution: | Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China |
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| Abstract: | Water consumption in agriculture is the most part of water resources consumption in both global and regional scales. Valuation of agricultural water productivity is of importance for improving the local agricultural water resources utilization, especially in the arid areas. In this paper, first, the basic concept of crop water productivity (CWP) is introduced, and the core of its affecting factors is analyzed. Then, the evaluation methods of CWP are summarized and divided into the harvest method, the model method and the integrated RS (or GIS) method. The advantages and disadvantages of these three methods are discussed. Finally, the development trend of research on CWP is prospected, and it is considered that the method of RS (or GIS) combined with model method to estimate the CWP will be better in the future. |
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| Keywords: | crop water productivity evaluation methods model of crop water productivity |
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