Journal of Ecology and Rural Environment ›› 2019, Vol. 35 ›› Issue (9): 1154-1162.doi: 10.19741/j.issn.1673-4831.2018.0554

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Characteristics of Spatial-Temporal Dynamic Change in Ecological Land: A Case Study in Huaqiao International Service Business Park, Suzhou

WANG Ming-can1,2, WANG Chang-tian2, ZHANG Yin-long1,2, ZHOU Man-li2, LI Shuang2, LI Jia-xi2, LI Hai-fu3, WU Yong-bo1,2   

  1. 1. Collaborative Innovation Center of Sustainable Forestry in Southern China of Jiangsu Province, Nanjing Forestry University, Nanjing 210037, China;
    2. College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China;
    3. Bureau of Planning and Construction of Huaqiao Economic Development Zone, Suzhou 215332, China
  • Received:2018-09-10 Published:2019-09-25

Abstract: The study area was located in a rapidly urbanized small-scale region-Huaqiao International Service Business Park. High-resolution remote sensing images and GIS technology were used to investigate the spatial and temporal dynamic of ecological land, landscape pattern, and spatial pattern of ecological quality by means of the transition matrix of land use change, centre of gravity, the indexes of landscape pattern, and equivalent area, respectively. The results show that (1) from 2005 to 2015, ecological land decreased by 913.11 hm2 due to the speedy expansion of construction during the rapid urbanization in the study area, and the centre of gravity of ecological land moved southward; (2) from 2005 to 2009, the cultivated land decreased while the other ecological land did not change significantly; from 2009 to 2015, the degree of patch fragmentation and landscape complexity decreased, while the ecological land, except for the cultivated land, increased rapidly; (3) from 2005 to 2015, the average equivalent area for ecological land increased from 0.28 to 0.31, indicating that the ecological quality was improved; the land quality of 57.01% of the whole region was improved, while only for 17.22% the land quality declined. Overall, the policy of ecological construction has played an effective role during the rapid urbanization, especially under the situation of shortage of ecological land. In the future, the Huaqiao administration should emphasize on improving the ecological quality of land in the central region and further on optimizing the land resource allocation in order to improve the overall ecological quality of land.

Key words: urban ecological construction, ecological quality, green infrastructure, GIS

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