Acta Geographica Sinica, Volume. 75, Issue 9, 1921(2020)

Flood risk assessment under the background of urbanization based on landscape ecology

Yu YUAN*... Guohua FANG, Chengxuan LU and Min YAN |Show fewer author(s)
Author Affiliations
  • College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
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    Figures & Tables(10)
    Location of Qinhuai river basin and distribution of sub-basins
    Landscape distribution maps and the samples in the study area
    Sketch map of HEC-HMS model
    The calibration and validation results of HEC-HMS model
    Correlation analysis results of flood-landscape
    Regression analysis results of flood-landscape
    Spatial distribution of flood-landscape ecological risk for 2003 and 2017
    Landscape and flood-landscape ecological risk distribution of No.7 and No.8 sub-basins
    • Table 1. The data used in this study

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      Table 1. The data used in this study

      数据类型时间(年份)精度来源
      降雨1986—20161 d资源环境数据云平台(http://www.resdc.cn), 南京气象局
      流量1986—20161 d
      太阳辐射、气温1986—20161 d
      土壤20091 km世界和谐土壤数据库HWSD 1.1
      数字高程200930 m中国科学院计算机网络信息中心地理空间数据云平台(http://www.gscloud.cn)
      遥感影像1988, 1994, 1999, 2003, 2010, 201730 m
    • Table 2. Summary of calibration and validation results for simulation at daily step

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      Table 2. Summary of calibration and validation results for simulation at daily step

      洪号景观分布年份RNSEDv(%)Dp(%)
      率定期1987063019880.960.913.53-9.23
      1993061819940.940.8625.440.39
      2003062620030.980.8722.8812.84
      2008061520100.990.997.663.85
      验证期1987081919880.950.8118.2713.64
      1991062919880.830.80-3.8120.21
      1996062319940.990.8929.322.60
      1999062219990.950.8229.257.87
      2002061820030.980.96-0.29-6.95
      2006071820030.980.8921.1119.50
      2015071220170.950.880.77-7.36
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    Yu YUAN, Guohua FANG, Chengxuan LU, Min YAN. Flood risk assessment under the background of urbanization based on landscape ecology[J]. Acta Geographica Sinica, 2020, 75(9): 1921

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    Paper Information

    Received: May. 15, 2019

    Accepted: --

    Published Online: Apr. 14, 2021

    The Author Email: YUAN Yu (yuanyu@hhu.edu.cn)

    DOI:10.11821/dlxb202009008

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