资源与产业 ›› 2022, Vol. 24 ›› Issue (6): 103-115.DOI: 10.13776/j.cnki.resourcesindustries.20221024.004

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长江经济带水利建设投资对水资源绿色效率的影响

华 坚1,2,刘 蕾1,施明月1   

  1. (1.河海大学 商学院,江苏 南京 211100;2.江苏省“世界水谷”与水生态文明协同创新中心,江苏 南京 211100
  • 收稿日期:2021-12-22 修回日期:2022-07-13 出版日期:2022-12-20 发布日期:2023-02-21
  • 作者简介:华坚,博士、副教授,主要从事环境经济学、产业和区域发展、金融与投资管理研究。E-mail:huajian@hhu.edu.cn

Impact of investment in water conservancy construction on green efficiency of water resources in the Yangtze River Economic Belt

HUA Jian1, 2, LIU Lei1, SHI Mingyue1   

  1. (1.Business School, Hohai University, Nanjing 21100, China2.Jiangsu Province World Water Valleyand Water Ecological Civilization Collaborative Innovation Center, Nanjing 211100, China)

  • Received:2021-12-22 Revised:2022-07-13 Online:2022-12-20 Published:2023-02-21

摘要:

长江经济带是我国经济密度最大、最活跃的流域经济带,随着经济快速增长和城镇化进程加剧,水资源消耗与水环境污染问题日渐凸显,经济带水资源绿色效率整体偏低。本文以省、直辖市空间尺度为基础,依据长江经济带9省2市的相关数据,利用非期望产出超效率SBM模型,对该经济带水资源绿色效率展开测度,并通过构建空间杜宾模型深入分析水利建设投资对水资源绿色效率的影响。研究结果表明:1)长江经济带水资源绿色效率水平普遍较低,多数省、直辖市尚未达到有效水平。从时序角度来看,长江经济带水资源绿色效率整体呈现波动上升趋势,各省、直辖市之间呈现“下游>上游>中游”的特征。从空间角度来看,长江经济带水资源绿色效率大致呈现“东高西低、北高南低”的空间分布特征,多数省、直辖市水资源绿色效率正逐步向中等效率水平过渡。2)水利建设投资对水资源绿色效率具有显著的促进作用,具体而言,就是对本省、直辖市水资源绿色效率促进作用明显,但对周边地区无明显促进作用。在控制变量中,经济发展水平和产业结构对水资源绿色效率具有显著正向影响作用,城镇化水平、水资源禀赋、污染程度对水资源绿色效率具有显著负向影响作用,知识水平对水资源绿色效率无明显影响作用。为了促进长江经济带水利建设投资对水资源绿色效率的正向影响作用,不断提升水资源绿色效率,各级政府应当贯彻绿色发展理念,坚持长江经济带水资源综合治理与经济发展相结合,因地制宜地开展长江经济带水资源绿色效率管理,努力缩小水资源绿色效率的省际差距,进而推动整个长江经济带社会、经济、生态的协调可持续发展。

关键词: 水资源绿色效率, 水利建设投资, 长江经济带, 空间杜宾模型

Abstract:

Yangtze River Economic Belt is the most active and economically most dense stream belt in China. China’s fast growing economy and urbanization results in water resources consumption and environmental pollution with an aftermath of low water resources green efficiency in this economic belt. This paper, based on provincial and municipal spatial scales and data of 9 provinces and 2 municipalities in the Yangtze River Economic Belt, uses non expected output ultra-efficiency SBM model to estimate its water resources green efficiency, and establishes a spatial Dubin model to study the impact of water conservancy construction investment on water resources green efficiency. The results show an overall low efficiency, most provinces/municipalities under the effective level. Temporally, the water resources green efficiency shows a fluctuated rising trend, characterized by “downstream>upstream>middle stream”. Spatially, it shows a “eastern high west low and northern high southern low” pattern, most provinces/municipalities in a transiting stage up to the medium green efficiency. Water conservancy construction investment largely improves the water resources green efficiency within the provincial/municipal ranges, with little influence on their neighboring areas. Among control variables, economic development level and industrial structure positively exert boost the water resources green efficiency, but urbanization level, water resources abundance and pollution play adversely, and knowledge level has no significant effect on the green efficiency of water resources. To promote the positive impact of water conservancy construction investment on water resources green efficiency in the Yangtze River Economic Belt, this paper presents suggestions for governments on holding of green development concept, combining water resources comprehensive governance with economic development, carry out green efficiency management of water resources in the Yangtze River Economic Belt according to local conditions, and diminishing its provincial variance for a coordinated and sustainable development on society, economy and ecology in the Yangtze River Economic Belt.

Key words:

water resources green efficiency, water conservancy construction investment, Yangtze River Economic Belt, spatial Dubin model

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