长江科学院院报 ›› 2022, Vol. 39 ›› Issue (1): 32-38.DOI: 10.11988/ckyyb.202000840

• 水资源 • 上一篇    下一篇

唐白河流域用水量效益函数计算

王发强1,2, 付湘1,2, 秦嘉楠1,2   

  1. 1.武汉大学 水资源与水电工程科学国家重点实验室,武汉 430074;
    2.海绵城市建设水系统科学湖北省重点实验室,武汉 430074
  • 收稿日期:2020-08-17 修回日期:2020-10-26 出版日期:2022-01-01 发布日期:2022-01-14
  • 通讯作者: 付 湘(1971-) ,女,江西德安人,教授,博士,博士生导师,主要从事水文及水资源研究。E-mail:xfu@whu.edu.cn
  • 作者简介:王发强(1997-),男,山东聊城人,硕士研究生,主要从事水文及水资源研究。E-mail:2019202060118@whu.edu.cn
  • 基金资助:
    国家自然科学基金项目(51979199)

Calculation of Water Use Benefit Function in Tangbai River Basin

WANG Fa-qiang1,2, FU Xiang1,2, QIN Jia-nan1,2   

  1. 1. State Key Laboratory of Water Resource and Hydropower Engineering Science, Wuhan University, Wuhan 430074,China;
    2. Hubei Provincial Key Lab of Water System Science for Sponge City Construction, Wuhan 430074, China
  • Received:2020-08-17 Revised:2020-10-26 Online:2022-01-01 Published:2022-01-14

摘要: 用水量效益函数能够指示用水效益随用水量的变化特征。基于2000—2018年唐白河流域5个地区用水量和经济效益指标的面板数据,应用固定效应模型,分别采用截面加权最小二乘法和似不相关法进行回归计算,定量分析该地区用水经济效益与用水量的关系,得到唐白河流域及其不同产业的用水量效益函数。结果表明:唐白河流域人均农业增加值随农业用水量的变化关系呈倒“N”型,人均工业增加值随工业用水量的变化关系呈增长型,人均GDP随用水总量的变化关系呈“U”型;在不同产业中,各地区的经济效益与用水量均有着较大差异,需采取不同的用水策略。研究成果可为唐白河流域的用水管理与水资源配置提供参考依据。

关键词: 用水量效益函数, 环境库兹涅茨曲线, 经济效益, 似不相关回归, 截面加权最小二乘法, 唐白河流域

Abstract: The water use benefit function indicates the characteristics of economic benefits varying with water use. According to the panel data of water use and economic growth indicators of five regions in Tangbai River Basin from 2000 to 2018, we analyzed quantitatively the relation between water use benefits and water use using the fixed effect model through regression calculation with the cross-section weighted least square method and the seeming unrelated regression. We obtained the water use benefit functions for the whole basin and for different industries in the basin. Our findings suggest that the relation curve of per capita added value of farming, forestry, animal husbandry and fishery against agricultural water use displays an inverted N-shape; per capita industrial added value increased with industrial water use; the relation curve of per capita GDP against total water use displayed a U-shape. The water use and economic benefits of different industries varied remarkably among different regions, hence calling for varied water use strategies. The research findings offer reference for water management and water resources allocation in Tangbai River Basin.

Key words: water use benefit function, Environmental Kuznets Curve (EKC), economic benefits, seeming unrelated regression, cross-section weighted least square method, Tangbai River basin

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