Analysis of green water efficiency in Yangtze River Delta region based on DEA model

doi:10.14088/j.cnki.issn0439-8114.2020.13.038

Abstract

Abstract: The total water consumption, fixed assets investment, employment figure, amount of discharged wastewater and GDP output of three provinces and one city in the Yangtze River Delta from 2002 to 2017 were choosed to construct the DEA-Malmquist index model. The green water efficiency of the provinces was analysed,combining with environmental factors. The result showed that year 2010 and year 2015 were two obvious turning points of green water efficiency in three provinces and one city, which showed the significance of water conservation and water pollution governance policy implementation; During the study period, TFP total factor index was greater than 1, but technical efficiency showed a regressive trend, especially in Anhui Province. Therefore, the provinces should pay attention to optimizing industrial structure while implementing water-saving policies, ensuring technological progress and expanding industrial scale.

Key words: green water efficiency, DEA and Malmquist index, economies of scale, environmental protection, Yangtze river delta region

CLC Number:

LUO Shi-chun, HUA Rui, SONG An-na. Analysis of green water efficiency in Yangtze River Delta region based on DEA model[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(13): 170-174.

References

[1] 尚熳廷,王小军,刘明朝,等. 长江流域省区用水总量与用水效率控制评估[J]. 人民长江,2019,50(1):84-88.
[2] 朱滨,邓燕青,胡俊,等. 对长江流域水生态监测评估的思考[J]. 人民长江,2018,49(18):6-9,32.
[3] 孙冬营,佘靖雯,刘凌燕,等. 长江三角洲城市群工业用水效率评价及时空差异研究[J]. 长江流域资源与环境,2018,27(9):1901-1908.
[4] 杨高升,谢秋皓. 长江经济带绿色水资源效率时空分异研究——基于SE-SBM与ML指数法[J]. 长江流域资源与环境,2019,28(2):349-358.
[5] 刘渝,宋阳. 基于超效率SBM的中国农业水资源环境效率评价及影响因素分析[J]. 中国农村水利水电,2019(1):102-107.
[6] 雷玉桃,黄丽萍. 中国工业用水效率及其影响因素的区域差异研究——基于SFA的省际面板数据[J]. 中国软科学,2015(4):155-164.
[7] 李静,任继达. 中国工业的用水效率与决定因素——资源和环境双重约束下的分析[J]. 工业技术经济,2018,37(1):122-129.
[8] 任俊霖,李浩,伍新木,等. 长江经济带省会城市用水效率分析[J]. 中国人口·资源与环境,2016,26(5):101-107.
[9] 佟金萍,马剑锋,王圣,等. 长江流域农业用水效率研究:基于超效率DEA和Tobit模型[J]. 长江流域资源与环境,2015,24(4):603-608.
[10] 沈欣媛,赵敏. 基于超效率DEA的江苏省用水效率研究[J]. 水利经济,2015,33(1):9-13,73.
[11] 史毅超,唐彦,唐德善,等. 基于DEA和Malmquis指数的浙江省用水效率分析[J]. 人民长江,2018,49(9):35-40.
[12] 魏权龄. 数据包络分析(DEA)[J]. 科学通报,2000(17):1793-1808.
[13] 许罗丹,张媛. 基于DEA模型的中国省际生态效率测度与影响因素分析[J]. 河北经贸大学学报,2018,39(4):30-35.
[14] 汪克亮,刘悦,史利娟,等. 长江经济带工业绿色水资源效率的时空分异与影响因素——基于EBM-Tobit模型的两阶段分析[J]. 资源科学,2017,39(8):1522-1534.
[15] 尹吉国,李良县,王士武,等. 浙江省节水型社会建设现状及对策研究[J]. 中国水利,2011(21):47-49.