| 灌溉供水可靠度的经济设计 |
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| 引用本文： | 尹正杰,王小林,胡铁松,吴凤燕.灌溉供水可靠度的经济设计[J].灌溉排水学报,2005,24(2):52-54. |
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| 作者姓名： | 尹正杰 王小林 胡铁松 吴凤燕 |
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| 作者单位： | 武汉大学,水利水电学院,湖北,武汉,430072 |
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| 基金项目： | 湖北省自然科学基金资助项目(2004ABA007) |
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| 摘 要： | 灌溉供水可靠度是评价灌溉设计与管理的重要指标,但现行的灌溉保证率指标由于不能反映灌溉供水的时间效应和程度效应,评价结果与实际相差较大。对此本文引入作物水分生产函数,通过反演对时段赋权和对缺水分级,提出了一种改进的灌溉供水可靠度评价方法。该方法能将灌溉供水的可靠度与其产量水平挂钩,具有明确的经济意义,且简单实用,对灌溉管理有一定的借鉴作用。
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| 关 键 词： | 灌溉供水 可靠度 保证率 |
| 文章编号： | 1000-646X(2005)02-0052-03 |
| 修稿时间： | 2004年11月15 |
Economic Design of Irrigation Water Supply Reliability |
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| YIN Zheng-jie,WANG Xiao-lin,HU Tie-song,WU Feng-yan.Economic Design of Irrigation Water Supply Reliability[J].Journal of Irrigation and Drainage,2005,24(2):52-54. |
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| Authors: | YIN Zheng-jie WANG Xiao-lin HU Tie-song WU Feng-yan |
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| Abstract: | Irrigation water supply reliability is a main criterion of evaluating irrigation planning and management. The evaluation result of present irrigation firm probability index is far from the reality due to its inability to reflect irrigation water's time effect and deficiency degree effect. So this paper proposes an improved evaluation method of irrigation water supply reliability that gives weights to each time period and fuzzy grades to different deficiency using inversion through introducing crop-water production function. This method enables irrigation water supply reliability respond to crop yields therefore has explicit economic meaning, furthermore it is simple and applicable to evaluate irrigation management alternatives. |
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| Keywords: | irrigation water supply reliability firm probability |
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