JOURNAL OF NATURAL RESOURCES ›› 2019, Vol. 34 ›› Issue (6): 1196-1208.doi: 10.31497/zrzyxb.20190606

• Resource Ecology • Previous Articles     Next Articles

Calculation and robustness test of county-scale ecological efficiency based on multi-source remote sensing data:Taking the urban agglomeration in the Middle Reaches of Yangtze River as an example

Yong MA1(), Yun TONG1,2, Jie REN3   

  1. 1. Academy of Green Development, Hubei University, Wuhan 430062, China
    2. School of Business, Hubei University, Wuhan 430062, China
    3. Business School, University of Queensland, Brisbane 4072, Queensland, Australia
  • Received:2018-12-03 Revised:2019-04-01 Online:2019-06-20 Published:2019-06-20

Abstract:

Ecological efficiency is an important basis for evaluating the level of regional ecological civilization. It is also a common index and variable for the comprehensive study of resources and environment in geography and economics. The lack of research on the measure of ecological efficiency at the county level has restricted the above-mentioned problems to be researched at the county level. Constructing a scientific path for measuring ecological efficiency at the county level is conducive to accurately identifying the regional economic and social ecological development pattern and providing a possibility for county-level government green performance assessment. Under the national strategy of ecological priority and green development of the Yangtze River economic belt, taking the middle reaches of the Yangtze River as the research area and relying on the multi-source remote sensing data to construct the index system for estimating the ecological efficiency of the county scale, the ecological efficiency of the county area from 2000 to 2015 was calculated by using the non-consensual output EBM super efficiency model, and the GIS spatial analysis tool was used to reveal spatial differences and spatial correlation characteristics. A robust test scheme is designed to test the scientificity and robustness of the county-scale ecoefficiency measurement path. The results show that: (1) The ecological efficiency of the counties under the jurisdiction of Changsha-Zhuzhou-Xiangtan urban agglomeration and Poyang Lake urban agglomeration is better than that of the counties under the jurisdiction of Wuhan urban agglomeration. (2) During the study period, the ecological efficiency of 12 counties and cities such as Wuhan maintained a high level, while that of 7 counties and cities such as Ruichang maintained a low level. (3) The H-H concentration area of ecological efficiency in the early stage is mainly in Hengyang, Zhuzhou and its surrounding areas. By 2015, these areas had disappeared. The L-L agglomeration area of ecological efficiency follows the clockwise trend and gradually forms a closed circular area around the city of Wuhan. (4) The robustness test based on the comparison of city ecological efficiency rankings shows that the measurement path and results of county ecological efficiency constructed in this paper have high reliability.

Key words: ecological efficiency, county-scale, remote sensing data, EBM, robustness test, urban agglomeration in the Middle Reaches of Yangtze River