| 灌区降水量与参考作物腾发量的联合
分布模型研究 |
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| 引用本文： | 丁志宏,何宏谋,王浩.灌区降水量与参考作物腾发量的联合
分布模型研究[J].水利水电技术,2011,42(7):15. |
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| 作者姓名： | 丁志宏 何宏谋 王浩 |
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| 作者单位： | (1.天津大学建筑工程学院，天津300072; 2.黄河水利科学研究院水资源研究所，河南郑州450003;
3.中国水利水电科学研究院水资源研究所，北京100038) |
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| 基金项目： | 国家自然科学基金，黄河水利科学研究院科技发展基金 |
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| 摘 要： | 为从系统和风险的新角度描述灌溉系统的两个基本变量，在分析参考作物腾发量研究现状的
基础上，以宁夏卫宁灌区为例，基于灌区降水量和参考作物腾发量之间具有的天然相关性，首先应用
P - III曲线法推求得到二者的频率分布曲线，再运用C叩ula函数方法构建了降水量和参考作物腾发
量年际联合分布模型，给出了降水量和参考作物腾发量的重现期等值线图，为灌溉系统的规划和风险
评价提供了新的技术支撑。
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| 关 键 词： | 灌区 降水量 参考作物腾发量 联合分布概率 Copula 干旱风险 |
| 收稿时间： | 2010-12-27 |
Joint distribution model of precipitation and reference crop evapotranspiration in irrigation area |
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| DING Zhihong,HE Hongmou,WANG Hao.Joint distribution model of precipitation and reference crop evapotranspiration in irrigation area[J].Water Resources and Hydropower Engineering,2011,42(7):15. |
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| Authors: | DING Zhihong HE Hongmou WANG Hao |
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| Affiliation: | (1. School
of Civil
450003
Engineering, Tianjin University, Tianjin 300072, China; 2. Yellow River Hydraulic Research Institute
Zhengzhou
Henan, China; 3. China Institute of Water Resources&Hydmpower Research, Beijing 100038，China) |
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| Abstract: | The relationship between two basic variables of irrigation system from the new aspects of the system and the risk is described and on the basis of analyzing the current research on the reference crop evapotranspiration,both of the frequency distribution curves of the precipitation and the reference crop evapotranspiration are derived by applying P-III frequency curve calculation method at first based on the natural coorelation between them by taking Weining Irrigation Area in Ningxia as a study case,and the... |
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| Keywords: | irrigation area precipitation reference crop evapotranspiration joint distribution probability Copula draught risk |
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