[1]TIAN Ying,LI Bing,WANG Shui.Study on Landscape Ecological Risk of the Coastal Areas of Jiangsu Province[J].Research of Soil and Water Conservation,2015,22(01):241-245,251.
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Study on Landscape Ecological Risk of the Coastal Areas of Jiangsu Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 01
Page number:
241-245,251
Column:
Public date:
2015-02-28
- Title:
- Study on Landscape Ecological Risk of the Coastal Areas of Jiangsu Province
- CLC:
- X820.4
- DOI:
- -
- Abstract:
- The ecological risk index was calculated by taking the coastal areas of Jiangsu Province as studying area, using the remote sensing images of Landsat TM in 1989,1995 and 2009 as the main data sourced. Ecological risk maps were obtained by resampling and interpolation by GIS and geostatistics method.Based on its ecological risk maps, the study area was classified into five kinds of areas: extremely low, low, moderate, high and extremely high ecological risk areas by relative index method. And then the temporal and spatial dynamics of ecological risk were analyzed by overlying the ecological risk maps in different periods. The results show that: in recent 20 years, most of the study area had moderate ecological risk; the area with extremely low and low ecological risk had no obviouse change and mainly located in Yancheng City; the area of high ecological risk increased significantly and mainly distributed in the coastal beach of Yancheng City. The gravity shift distances of extremely low ecological risk and the high ecological risk were the greatest which were 116.6 km and 4.6 km, respectively.
- References:
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