| 引用本文: | 尚林鑫,李育飞,邵光成,等.基于PSR模型的灌区节水改造综合效益物元分析评价[J].灌溉排水学报,2018,37(11):121-128. |
| SHANG Linxin,LI Yufei,SHAO Guangcheng,et al.基于PSR模型的灌区节水改造综合效益物元分析评价[J].灌溉排水学报,2018,37(11):121-128. |
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| 摘要: |
| 【目的】确定灌区节水改造工程所产生的综合效益等级、完善现有评价体系。【方法】基于压力-状态-响应(PSR)模型构建了灌区改造节水效益评价指标体系，详细阐释了PSR模型框架下节水效益评价指标再划分的依据，通过将层次分析法与熵权法耦合得到主客观相结合的组合权重，建立了灌区改造节水效益物元分析评价模型，并引用全国20个样点灌区的统计数据进行实例分析验证。【结果】样点灌区1节水改造综合效益等级为较好级别，但人均粮食占有和粮食水分生产率是当前该灌区改造的短板；20个样点灌区的判定结果显示物元分析法在节水效益评价中的误判率仅为5%。【结论】在灌区节水效益评价中当采用模糊综合法和灰色关联法评定结果不一致时，可以以基于PSR模型的物元分析法得到的结果为参考，确定最终节水改造综合效益等级。 |
| 关键词: 灌区；节水效益； 模型； 物元分析 |
| DOI：10.13522/j.cnki.ggps.20170002 |
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| Evaluating Multiple Benefits of Revamping Water-saving Irrigation District Based on the PSR Model |
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SHANG Linxin, LI Yufei, SHAO Guangcheng, DING Mingming, YAO Junqi, SHAO Luyang
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1. College of Agricultural Engineering, Hohai University, Nanjing 210098, China;2. Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China, Ministry of Education, Nanjing 210098, China; 3. Water Conservancy Bureau of Huai’an District, Huai’an City, Huai’an 223200, China; 4. Nanjing Water Affairs Bureau, Nanjing 210036, China;
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| Abstract: |
| 【Objective】 The purpose of this paper is to improve the existing evaluation system for determining the grade of water-saving benefits produced from revamping irrigation infrastructures.【Method】 Based on the pressure-state-response model, we constructed the evaluation index system to estimate the water-saving benefits of reconstructing existing irrigation districts, and explained in detail of the basis of re-division of the water-saving benefits evaluation index under the framework of PSR model. By coupling the analytic hierarchy process and the entropy weight method, we got the combination of subjective weights and objective weight, and established the matter element analysis and evaluation model of the water-saving benefit of irrigation district reconstruction. The statistical data of 20 exemplar irrigation districts in China were analyzed and used to verify the model. 【Result】 The benefit grade of water saving transformation in the exemplar irrigated area 1 was better. Grain production per capita and water productivity were currently shortcoming in revamping irrigation districts. The calculated results for the 20 irrigation districts showed that the misjudgment rate of matter-element analysis method was only 5% in evaluation of water-saving benefit.【Conclusion】If the fuzzy comprehensive method and the grey correlation method are no consistent in evaluating the water-saving benefit of irrigation districts, one can consider of using the PSR model a reference to determine the grade of water-saving benefits. |
| Key words: irrigation district； water saving benefit; model; matter element analysis |
