SCIENTIA GEOGRAPHICA SINICA ›› 2022, Vol. 42 ›› Issue (10): 1706-1716.doi: 10.13249/j.cnki.sgs.2022.10.003

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Spatiotemporal Change of Landscape Pattern and Its Eco-environmental Response in the Yangtze River Economic Belt

Ma Xiaoxue1(), Wu Hao2, Qin Boqiang3, Wang Lachun4()   

  1. 1. College of Geosciences, Jiangsu Second Normal University, Nanjing 210013, Jiangsu, China
    2. Green Economy Development Institute, Nanjing University of Finance and Economics, Nanjing 210023, Jiangsu, China
    3. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, Jiangsu, China
    4. School of Oceanographic Sciences, Nanjing University, Nanjing 210093, Jiangsu, China
  • Received:2021-10-20 Revised:2022-01-19 Online:2022-10-30 Published:2022-10-20
  • Contact: Wang Lachun;
  • Supported by:
    Research Foundation for Advanced Talents of Jiangsu Second Normal University)(921001);Strategic Priority Research Program of the Chinese Academy of Science(XDA230402)


Based on the Landsat TM remote sensing images of 2000, 2010, and 2020, landscape pattern index, index of regional ecological environment quality were used to explore the temporal and spatial variation characteristics of land landscape pattern and the response law of landscape ecological environment in the Yangtze River Economic Belt. The results showed 1) The spatial distribution of forest land, grassland and other ecological land in the upper, middle and lower reaches of the Yangtze River Economic Belt is misplaced with the spatial distribution of man-made surface. The main transfer direction of ecological land is cultivated land and man-made surface. 2) At the landscape level, the index of aggregation degree decreased, the index of fragmentation degree and the index of diversity increased from 2000 to 2020. At the class level, the degree of fragmentation of cultivated land increased, and the spatial connection of the manmade surface was continuously strengthened, which tends to develop on a large scale. 3) From 2000 to 2020, the the coexistence of the ecological improvement trend and the ecological deterioration trend of the ecological environment quality weakens the temporal variability of the overall ecological environment. Spatially, the low-value area of the ecological environment quality index is closely related to the spatial pattern of the three major urban agglomerations in the Yangtze River Economic Belt. 4) The changes in the ecological environment under the transformation of the dominant function of land use, the side effects of the population siphon effect, and the industrial structure affected the spatial distribution of the ecological environment of urban agglomerations.

Key words: the Yangtze River Economic Belt, landscape pattern, landscape index, ecological environment response

CLC Number: 

  • F129.9