Evolvement rules of basin flood risk under low-carbon mode. Part II: risk assessment of flood disaster under different land use patterns in the Haihe basin

Evolvement rules of basin flood risk under low-carbon mode. Part II: risk assessment of flood disaster under different land use patterns in the Haihe basin
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低碳模式下流域洪水风险演化规律

DOI:
10.1007/s10661-017-6102-4
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发表时间:
2017-07
影响因子:
3
通讯作者:
Zhao Yong
Zhao Yong
中科院分区:
环境科学与生态学4区
文献类型:
--
作者:
Li Fawen;Wang Liping;Zhao Yong

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土地利用方式包含了大量的洪水灾害形成环境信息,是灾害形成环境中最敏感的因子。基于2008年(基准年)和2020年(规划年)的土地利用格局,利用ARCGIS的空间分析功能和层次分析法(AHP),对海河流域洪涝灾害风险变化进行了对比分析。结果表明,海河流域洪涝灾害风险在空间上具有明显的地带性,低风险区位于西北部,高风险区位于东南部。规划年洪水灾害风险低于基准年。2020年山区的风险值从0.445下降到0.430,而平原的风险值从0.562上升到0.564。对于平原而言,2020年高风险地区增加13.2%,是风险等级变化最大的地区。对于山区,2020年低风险区和低风险区均有所增加,低风险区增幅最大,达37.7%。同时,高风险地区、高风险地区、中风险地区均呈下降趋势,高风险地区降幅最大,达32.6%。总体而言,低碳模式下的土地利用规划模式有利于海河流域防洪减灾。该研究可为流域土地利用规划和洪水灾害风险管理提供科学依据。
Land use pattern contains a large amount of information about the flood hazard-formative environments, which is the most sensitive factor in hazard-formative environments. In this paper, based on the land use pattern in 2008 (the base year) and in 2020 (the planning year), the comparative analysis of flood disaster risk changes in Haihe basin were studied by the spatial analysis function of ARCGIS and the analytic hierarchy process (AHP). The results showed the flood disaster risk in Haihe basin had an obvious zonality in the space, among which low risk was located in the northwest regions, and high risk was located in the southeast regions. Flood disaster risk in planning year was lower than in the base year. The risk value of 2020 in the mountain decreases from 0.445 to 0.430, while the risk value of the plain increases from 0.562 to 0.564. For the plain, high-risk area in 2020 is increased by 13.2%, which is the biggest change in risk grades. For the mountain, low-risk area and low risk area in 2020 are increased, and the low-risk area is the biggest increase, up to 37.7%. Meanwhile, high-risk area, high risk area, and medium risk area all tend to decrease, and the high-risk area is the biggest decrease, up to 32.6%. Overall, land use planning pattern under low-carbon mode is conducive to the Haihe basin flood control. The research can provide scientific foundations for basin land use planning and flood disaster risk management.
DOI: 10.1007/s11769-011-0455-3
发表时间: 2011-03
影响因子: 3.4
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期刊: CLIMATIC CHANGE
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DOI: 10.1111/1467-8306.00310
发表时间: 2002-12-01
期刊: ANNALS OF THE ASSOCIATION OF AMERICAN GEOGRAPHERS
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影响因子: 3
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