SCIENTIA GEOGRAPHICA SINICA ›› 2020, Vol. 40 ›› Issue (6): 882-889.doi: 10.13249/j.cnki.sgs.2020.06.003

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Evaluation of Ecological Functions of Urbanized Areas Based on the Plan for Major Functional Areas in China

Xia Han1(), Zhang Wanshun1,2,3,*(), Peng Hong4, Li Lin1, Huang Panpan4, Xia Jingjing1,2   

  1. 1. School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, Hubei, China
    2. China Institute of Development Strategy and Planning, Wuhan University, Wuhan 430079, Hubei, China
    3. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, Hubei, China
    4. School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, Hubei, China
  • Received:2019-06-18 Online:2020-06-01 Published:2020-12-07
  • Contact: Zhang Wanshun E-mail:xiah@whu.edu.cn;wszhang@whu.edu.cn
  • Supported by:
    Entrusted Projects for Major Issues of the National Development and Reform Commission of China (201708).

Abstract:

The ecological function of major urbanized areas in China was evaluated and analyzed at county scale, the correlation between ecological function index and three-level index was analyzed, and suggestions were put forward for areas with obvious ecological function decline. The results show that from 2009 to 2015, the proportion of districts and counties with high level ecological function of the ‘two horizontal and three vertical’ urbanization strategic pattern decreased from 78.68% to 68.13%. The proportion of districts and counties with high level ecological function of the optimized development zones decreased from 53.85% to 37.28%. Counties with obviously degradation in ecological function are mainly distributed in the southeast of Beijing-Tianjin-Hebei region and the Bohai coastal region. The proportion of districts and counties with high level ecological function index of the key development zones decreased from 73.78% to 69.21%. Counties with obviously degradation in ecological function are mainly distributed in the central Henan urban agglomeration and northeast region. Urban areas with ecological degradation are accompanied by different degrees of habitat quality index reduction, ecological space reduction, development intensity and population density increases. The order of the correlation between eco-function index and three-level index are as follows: Proportion of ecological space, habitat quality index, development intensity and population density. It is suggested to emphasize development control, strengthen ecological protection, implement classification control, and improve the long-term mechanism of differentiated coordinated development of different major functional areas.

Key words: major functional areas, urbanized area, ecological functions, assessment, China

CLC Number: 

  • X321