| 引用本文: | 武 雪,牛最荣,张 芮,等.石羊河流域武威属区高效节水灌溉综合效益研究[J].灌溉排水学报,2020,39(6):115-123. |
| ,et al.石羊河流域武威属区高效节水灌溉综合效益研究[J].灌溉排水学报,2020,39(6):115-123. |
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| 摘要: |
| 【目的】探讨石羊河流域武威属区高效节水灌溉工程实施的现状，总结节水灌溉工程发展的经验，发现工程实施过程中存在的问题。【方法】采用层次分析法（The Analytic Hierarchy Process，AHP）和模糊数学法，选择经济-社会-生态耦合效益作为区域综合效益评价标准，根据武威区域的地域特征、气候特征、水资源特征、经济社会发展特征以及市、县、农场、农民多级联动耦合效应，建立武威属区高效节水灌溉工程区域综合效益评价指标体系；将调研数据代入指标体系，得出隶属度等评价结果。【结果】石羊河流域武威属区高效节水灌溉工程实施后，生态效益最为明显，达到I级（对应隶属度值为0.629），经济效益也为I级，对应隶属度值为0.428；社会效益为Ⅱ级，区域综合效益为I级；对区域农业结构调整程度（C22）的符合度较低，为Ⅲ级。【结论】石羊河流域武威属区高效节水灌溉项目生态效益和经济效益显著，今后应加大土地流转力度，通过种植大户推进作物种植结构优化调整，培育对高效节水灌溉项目的内生需求动力，提高农业节水潜力和可持续性，进一步夯实社会效益。 |
| 关键词: 综合效益；AHP；高效节水灌溉；武威属区 |
| DOI：10.13522/j.cnki.ggps.2019406 |
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| Comprehensive Analysis of the Benefits of High-efficient and Water-saving Irrigation in Wuwei in Shiyang River Basin |
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WU Xue, NIU Zuirong*, ZHANG Rui, XUE Yuan, ZHAO Xia
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College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070, China
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| Abstract: |
| 【Background】Increase in population and rapid urbanization and industrialization have built unprecedented pressure on demand for water resources. This was further exacerbated by deterioration of ecosystems and the requirement to reduce water use in all sectors to restore ecosystem functions. Among all efforts being attempted, developing efficient and water-saving irrigation plays a central part as agriculture consumes more than half of water used by all sectors combined in China. Water-saving irrigation is to minimize water loss in every steps in water transfer as well as deep percolation from soil, while efficiency means that crops being irrigated not only give the best yields but are also socially and ecologically sustainable. This is essential to developing sustainable agriculture. 【Objective】Taking the catchment of Wuwei in Shiyang River Basin as an example, this paper analyzed current situation and previous experiences in order to find the problems facing implementation of efficient water-saving irrigation. This would provide scientific support for developing high-efficiency water-saving irrigation to boost socioeconomic and ecological development in the catchment.【Method】Analytic hierarchy process model and fuzzy model were used to create the evaluation indexes to represent the comprehensive benefits of the high efficient water-saving irrigation projects. The models considered characteristics of local climate, water resources, socioeconomic development, as well as the multi-level linkage between city, county, farms and farmers, with the combined socioeconomic benefit and ecological benefit as the comprehensive benefit of the irrigation project. The membership value and the evaluation calculated from the models were based on the survey data from the catchment.【Result】The ecological benefits of the irrigation projects were most significant and level “I” with an associated membership value of 0.629; the economic benefits were also level “I” with a membership value of 0.508. The overall regional comprehensive benefits were level I despite the social benefits being level II. The degree of conformity to the adjustment of the regional agricultural structure (C22) was class III, relatively low. 【Conclusion】The ecological and economic benefits of the high-efficient water-saving irrigation projects in Wuwei in the Shiyang River Basin were significant. Future work should focus on increasing land consolidation, optimizing planting structure, incentivizing farmers to water-saving irrigation projects. |
| Key words: regional comprehensive benefits; AHP; efficient and water-saving irrigation; catchment of Wuwei |
