基于能值理论的节水农业综合效益量化方法 |
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引用本文: | 吕翠美,曹继鹏,凌敏华,李会勤. 基于能值理论的节水农业综合效益量化方法[J]. 科学技术与工程, 2022, 22(6): 2445-2453 |
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作者姓名: | 吕翠美 曹继鹏 凌敏华 李会勤 |
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作者单位: | 郑州大学水利科学与工程学院,郑州450001 |
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基金项目: | 国家自然科学基金(52079125) |
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摘 要: | 节水农业工程的实施会对地区经济、社会和生态环境造成多方面的影响,建立科学合理的量化方法,定量分析节水农业综合效益,有利于规模化节水农业发展。基于生态经济学能值理论,分析了节水农业经济、社会和生态环境正负效益的构成,以能值作为统一的度量尺度,提出了节水农业综合效益的量化方法。以河套灌区沈乌灌域2016年节水改造工程为例进行实例计算,结果表明,沈乌灌域节水农业综合效益为10.67亿元,其中生态环境效益比重最大,达到了79.8%,经济效益比重为20.0%,社会效益比重为0.2%。节水农业对于生态环境有较大的影响,节水农业在取得正效益的同时,也会带来一定的负效益,综合来看节水农业是正效益大于负效益。所提出的方法可以为量化节水农业综合效益提供一种新途径。
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关 键 词: | 节水农业 综合效益 能值 灌区 |
收稿时间: | 2021-07-08 |
修稿时间: | 2021-12-03 |
Research on Quantification Method of Comprehensive Benefits of Water-saving Agriculture Based on Emergy Theory |
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Affiliation: | Zhengzhou University |
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Abstract: | The implementation of water-saving agricultural project will have many impacts on regional economy, society and ecological environment. The establishment of scientific and reasonable quantitative methods to quantitatively analyze the comprehensive benefits of water-saving agriculture is conducive to the development of large-scale water-saving agriculture. Based on the emergy theory of ecological economics, this paper analyzes the composition of the positive and negative benefits of water-saving agricultural economy, society and ecological environment. The article uses emergy as a unified measurement scale and proposes a quantitative method for the comprehensive benefits of water-saving agriculture. This paper takes the 2016 water-saving renovation project in the Shenwu Irrigation Area of the Hetao Irrigation District as an example for calculation. The results showed that the comprehensive benefits of water-saving agriculture in the Shenwu Irrigation Area were 1.067 billion yuan, of which the ecological environment benefits accounted for the largest proportion, reaching 79.8%, the economic benefits accounted for 20.0%, and the social benefits accounted for 0.2%. We can see that water-saving agriculture has a greater impact on the ecological environment. While water-saving agriculture achieves positive benefits, it will also bring certain negative benefits. On the whole, water-saving agriculture has positive benefits greater than negative benefits. The method proposed in this paper can provide a new way to quantify the comprehensive benefits of water-saving agriculture. |
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Keywords: | water-saving agriculture comprehensive benefits emergy irrigated are |
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