| 基于GIS的湖南洪涝灾害农业风险评估 |
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| 引用本文： | 高霞霞,苏伟,谢佰承,陆魁东,高曙.基于GIS的湖南洪涝灾害农业风险评估[J].安徽农业科学,2011,39(2):1122-1123,1147. |
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| 作者姓名： | 高霞霞 苏伟 谢佰承 陆魁东 高曙 |
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| 作者单位： | 高霞霞,苏伟(中国农业大学,北京,100083);谢佰承,陆魁东,高曙(湖南省气象科学研究所,湖南长沙,410007) |
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| 基金项目： | "十一五"国家科技支撑计划项目，湖南省科技重大专项项目 |
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| 摘 要： | 利用湖南省1971~2006年的气象观测资料,综合全省98个县市的自然灾害等要素,采用受灾率、成灾率、降水变率、脆弱度、灾害损失率等数据和GIS技术,得出了湖南省洪涝灾害农业风险评估模型,并绘制出风险区划图。结果表明,湖南省洪涝灾害发生地域由北向南转移,风险度概率呈增加之势。最后根据洪涝灾害农业风险度时空分布特征,提出了相应的防灾减灾对策,防御和减轻洪涝灾害,以期能为实现湖南农业可持续发展提供参考和借鉴。
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| 关 键 词： | GIS 气象资料 洪涝灾害 风险级别 防御措施 |
Agricultural Risk Assessment of Hunan Flood Disaster Based on GIS |
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| Institution: | GAO Xia-xia et al (China Agricultural University,Beijing 100083) |
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| Abstract: | According to the meteorological data of Hunan Province during 1971-2006,the natural disaster factors of 98 cities and towns in the whole province were summarized,moreover,the data and GIS technology,such as,drought-affected area ratio,drought-suffering area ratio,rate of precipitation variation,vulnerability and disaster loss rate,etc.were utilized.As a result,agricultural risk assessment model of Hunan flood disaster was obtained and the risk block plan was drawn.The results showed that the flood region transferred from south to north in Hunan,and risk probability presented increasing tendency.Finally,the corresponding proposals for disaster prevention and mitigation were put forward to provide the references for Hunan agricultural sustainable development |
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| Keywords: | GIS |
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