长江科学院院报
長江科學院院報
장강과학원원보
JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTITUTE
2015年
5期
53-56
,共4页
主成分分析%洪灾损失%影响因子%防灾减灾%洪灾风险评估
主成分分析%洪災損失%影響因子%防災減災%洪災風險評估
주성분분석%홍재손실%영향인자%방재감재%홍재풍험평고
principal component analysis%flood loss%impact factor%disaster prevention and mitigation%flood risk assessment
为了评估洪灾损失,有针对性地采取相应的防灾减灾措施,选取淮河流域发生洪水灾害较频繁的安徽省几个典型城市作为研究区域,以2007年洪灾为例,在洪水灾害理论的基础上,从致灾因子、孕灾环境、承载体易损性3个方面,选取了7个洪灾损失影响因子,建立评价指标,运用主成分分析法对该区域洪灾损失影响因子进行综合评价。结果表明:降雨量、经济发展水平、人口结构、防洪标准对洪灾损失的影响较大。
為瞭評估洪災損失,有針對性地採取相應的防災減災措施,選取淮河流域髮生洪水災害較頻繁的安徽省幾箇典型城市作為研究區域,以2007年洪災為例,在洪水災害理論的基礎上,從緻災因子、孕災環境、承載體易損性3箇方麵,選取瞭7箇洪災損失影響因子,建立評價指標,運用主成分分析法對該區域洪災損失影響因子進行綜閤評價。結果錶明:降雨量、經濟髮展水平、人口結構、防洪標準對洪災損失的影響較大。
위료평고홍재손실,유침대성지채취상응적방재감재조시,선취회하류역발생홍수재해교빈번적안휘성궤개전형성시작위연구구역,이2007년홍재위례,재홍수재해이론적기출상,종치재인자、잉재배경、승재체역손성3개방면,선취료7개홍재손실영향인자,건립평개지표,운용주성분분석법대해구역홍재손실영향인자진행종합평개。결과표명:강우량、경제발전수평、인구결구、방홍표준대홍재손실적영향교대。
In order to assess flood losses and take appropriate measures for disaster prevention and mitigation,we adopted principal component analysis to comprehensively assess the factors affecting flood loss.Several cities of An-hui Province subjected to flood disasters in Huaihe river basin are selected as typical examples and flood data in 2007 is taken as a case study.On the basis of flood disaster theory,we select seven flood loss factors from three as-pects:disaster-causing factor,disaster environment factor and vulnerability factor,and establish the assessment in-dex system.Results reveal that rainfall,economic development,population structure and flood protection standards have great impact on flood loss.