RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2018, Vol. 27 >> Issue (08): 1676-.doi: 10.11870/cjlyzyyhj201808003

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Characteristic Analysis of Ecological Status in the Yangtze River Economic Belt Based on the Plan for Major Functionoriented Zones

WU Dan, ZOU Changxin, LIN Naifeng, XU Mengjia   

  1. (Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China)
  • Online:2018-08-20 Published:2018-11-09

Abstract: Characteristic analyses of ecological status in the Yangtze River Economic Belt have great significance on assessment of territorial development intensity and improving the ability of ecological security assurance. On the basis of ecosystem structure, vegetation coverage (VC) and Net Primary Productivity (NPP), this paper analyzed characteristics of ecological status within Major Functionoriented zones (MFOZs) of the Yangtze River Economic Belt. The results showed that: The settlement area ratio in optimal development zone (ODZs), key development zones (KDZs), agricultural production zones (APZs) and key ecological function zones (KEFZs) was 2525%, 655%, 370% and 040%, respectively, which was overall showed gradient feature of territorial development according to their functions. The annual change rate of construction land in KEFZs was higher than that in ODZs and KDZs, which was not match its functional orientation of “limit exploitation”. The KEFZs needed to enhance its space control in order to improve the supply capacity of ecological products. The annual mean VC and NPP during 2010 and 2015 were overall showed improving trend. The keep stable, changing better and changing worse area ratio of VC was 6043%, 2520% and 1437%, respectively. The keep stable, changing better and changing worse area ratio of NPP was 4982%, 4536% and 482%, respectively.〖

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