摘要
基于水生态产品供给的全过程,明晰水生态产品以及水生态产品供给效率等概念内涵,建立起水生态产品价值核算和水生态产品供给效率评价两套指标体系,对2012—2021年长江经济带水生态产品价值进行核算,以核算结果作为效率评价指标体系中的产出指标,运用超效率SBM模型、Dagum基尼系数、地理探测器等方法对长江经济带11省市水生态产品的供给效率、区域差异及影响因素展开研究。研究结果表明:(1)长江经济带水生态产品供给效率中游较高、上下游较低,上海、贵州、江西和湖北水生态产品供给效率较高,浙江、重庆水生态产品供给效率较低;(2)长江经济带水生态产品供给效率呈现“中游较小,上下游较大”的内部差异特征,区域间差异是导致水生态产品供给效率存在空间差异的主要来源;(3)科技水平、旅游景区个数和产业结构对长江经济带水生态产品供给效率的影响较大,各项因子的交互作用类型均为双因子增强或非线性增强。
Based on the whole process of water ecological product supply,the concept connotation of water ecological product and water ecological product supply efficiency is clarified.The value of water ecological products in the Yangtze River Economic Belt from 2012 to 2021 was calculated.The accounting results were used as the output indicators in the efficiency evaluation index system.The super-efficiency SBM model,Dagum Gini coefficient,and geographic detector were used to study the supply efficiency,regional differences,and influencing factors of water ecological products in the Yangtze River Economic Belt.The results show that:(1)The supply efficiency of water ecological products in the middle reaches of the Yangtze River Economic Belt is higher than that in the upper and lower reaches.The supply efficiency of water ecological products in Shanghai,Guizhou,Jiangxi and Hubei is higher,and the supply efficiency of water ecological products in Zhejiang and Chongqing is lower.(2)The supply efficiency of water ecological products in the Yangtze River Economic Belt presents the characteristics of intra-regional differences of“smaller in the middle reaches and larger in the upper and lower reaches”.Inter-regional differences are the main source of spatial differences in the supply efficiency of water ecological products.(3)The level of science and technology,the numbers of tourist attractions and the industrial structure have a greater impact on the supply efficiency of water ecological products,and the interaction types are doublefactor enhancement or nonlinear enhancement.
作者
杜雪莲
常滨丽
彭伟辉
DU Xuelian;CHANG Binli;PENG Weihui(School of Economics,Guizhou University of Finance and Economics,Guiyang Guizhou 550025,China)
出处
《生态经济》
北大核心
2026年第1期7-15,共9页
Ecological Economy
基金
2024年度贵州省哲学社会科学规划课题“贵州建立健全生态产品价值评价体系与实现机制研究”(24GZYB58)。
关键词
水生态产品
供给效率
超效率SBM模型
长江经济带
water ecological products
supply efficiency
super-SBM model
Yangtze River Economic Belt
