绵阳市“5.12”特大地震灾害区划研究
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摘要
"5.12"汶川特大地震给绵阳市造成重大灾害损失,根据自然灾害系统理论,从孕灾环境、致灾因子、承灾体和灾情4个方面分别选取相关评价指标,通过GIS空间分析得到了绵阳市"5.12"地震灾害敏感度、风险度、脆弱度和灾度分布图,采用3 km×3km网格为灾害区划基本单元,在MAPGIS软件中进行叠加分析,根据拟定的区划原则,采用基于空间邻域关系的区域合并方法对绵阳市地震灾害区域分异进行分析并进行灾害程度区划,得到4个类型灾害区。为绵阳市的灾后重建规划提供科学依据,为加快绵阳市灾后重建和社会经济可持续发展服务。
"5.12" Wenchuan Earthquake in Mianyang causes the great losses.The related evaluation indicators were selected from the aspects of the pregnant disaster environment,disaster-causing factors,disaster-affected bodies and disaster-affected bodies according to natural disasters systems theory.The sensitivity,risk,vulnerability and disaster distribution maps of "5.12" Mianyang Earthquake were obtained by using GIS spatial analysis.Adopting 3 km×3 km basic grid unit as the basic unit of disaster regionalization,the regional difference of earthquake disasters in Mianyang was analyzed by using the combined methods of neighborhood-based spatial relations in accordance with the proposed regionalization principles and the disaster extent was divided.Four types of disaster areas were obtained.It will provide scientific basis for the planning of post-disaster reconstruction,and will serve for the speeding up post-disaster.
"5.12" Wenchuan Earthquake in Mianyang causes the great losses.The related evaluation indicators were selected from the aspects of the pregnant disaster environment,disaster-causing factors,disaster-affected bodies and disaster-affected bodies according to natural disasters systems theory.The sensitivity,risk,vulnerability and disaster distribution maps of "5.12" Mianyang Earthquake were obtained by using GIS spatial analysis.Adopting 3 km×3 km basic grid unit as the basic unit of disaster regionalization,the regional difference of earthquake disasters in Mianyang was analyzed by using the combined methods of neighborhood-based spatial relations in accordance with the proposed regionalization principles and the disaster extent was divided.Four types of disaster areas were obtained.It will provide scientific basis for the planning of post-disaster reconstruction,and will serve for the speeding up post-disaster.
引文
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[2]史培军.灾害研究的理论与实践[J].南京大学学报:自然科学版,1991(S2):37-42.
[3]傅志军,郭俊理,王红梅.宝鸡市地震灾害区划[J].宝鸡文理学院学报:自然科学版,1999,17(2):58-59.
[4]王兰民,袁中夏,石玉成,等.黄土地震灾害区划指标与方法研究[J].自然灾害学报,1999,8(3):88-93.
[5]傅志军,卫旭东.自然灾害区划的理论与方法[J.]陕西师范大学学报:自然科学版,1998,26(13):232-234.
[6]王平.基于地理信息系统的自然灾害区划的方法研究[J].北京师范大学学报:自然科学版,2000,36(3):410-416.
[7]蒋勇军,况明生,李林立.GIS支持下的重庆市自然灾害综合区划[J].长江流域资源与环境,2003,12(5):487-492.
[8]张海峰,白永平,刘峰贵.基于GUS的青南高原自然灾害综合区划研究[J].干旱区资源与环境,2008,22(7):99-105.
[9]MARK T J T,CEES IVW.Determ inistec modeling in GIS-based landslidehazard NaturalHazards[M].Dordrecht,Netherlands:KluwerAcadm ic Pub-lishers,1995.
[10]毛国敏,邹其嘉,曹新玲,等.关于建立地震灾害指标体系的研究——地震灾情的综合信息系统[J].灾害学,1990,24(3):7-15.
[11]赵卫权.基于ArcView-GIS的自然灾害信息管理系统[J].石河子大学学报:自然科学版,2007,25(3):385-389.
[12]苗崇刚.地震灾害损失评估[J].自然灾害学报,2000,9(1):105-108.
[13]岳辉,缪志谋.四川省绵阳市地质灾害调查报告[R].绵阳,2006:12.
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