水环境约束下农业用水效率研究
作者:
作者单位:

安徽省茨淮新河工程管理局,安徽 蚌埠 233000

作者简介:

张 龙(1993—),男,硕士,工程师,主要从事水利工程管理、农业用水研究工作。

通讯作者:

张 龙 E-mail:1475506200@qq.com

中图分类号:

TV60344.3

基金项目:

/


Research on agricultural water use efficiency under water environment constraint
Author:
Affiliation:

Anhui Cihuai Xinhe Project Management Bureau, Bengbu 233000, China

Fund Project:

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    摘要:

    为研究绿色发展背景下不同地区农业用水效率时序与空间的差异,在DEA中嵌入农业面污染源,构建环境约束下的数据包络分析模型。以安徽省为例,运用该模型与Malmquist指数分析效率值时序变化及空间特征,并运用Tobit模型对效率影响因素作进一步分析。水环境约束下,2011—2020年间安徽省农业用水效率呈缓慢上升趋势,南北两端效率值较高、中部较低,最大影响因素是污染源。研究表明,动态规模报酬下环境污染对约束效率呈负向影响,划定DMU决策单元时应考虑效率溢出,该研究可为绿色农业用水效率测度提供参考。

    Abstract:

    To study the temporal and spatial differences in agricultural water use efficiency in different regions under the background of green development, an environmental-constrained data envelopment analysis (DEA) model with agricultural surface pollution sources embedded was constructed. Taking Anhui Province as an example, this model and the Malmquist index were used to analyze the temporal changes and spatial characteristics of efficiency values, and the Tobit model was applied for further analysis of efficiency influencing factors.Under the constraint of water environment, the efficiency of agricultural water use in Anhui Province showed a slow upward trend from 2011 to 2020. The efficiency value was higher in the north and south ends and lower in the middle. The biggest influencing factor was pollution source. The research showed that environmental pollution has a negative impact on constraint efficiency under dynamic returns to scale, and efficiency spillover should be considered when delineating DMU decision-making units. This study can provide a reference for the measurement of green agricultural water use efficiency.

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引用本文

张 龙.水环境约束下农业用水效率研究[J].江淮水利科技,2023,(1):19-26

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  • 收稿日期:2022-12-08
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  • 在线发布日期: 2023-04-11
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