河南科学
河南科學
하남과학
Henan Science
2015年
9期
1625-1630
,共6页
付占辉%李盼婷%王岩松%何伟纯
付佔輝%李盼婷%王巖鬆%何偉純
부점휘%리반정%왕암송%하위순
生态环境%脆弱性%熵值法%演变过程%驱动力%郑州市
生態環境%脆弱性%熵值法%縯變過程%驅動力%鄭州市
생태배경%취약성%적치법%연변과정%구동력%정주시
the ecological environment%vulnerability%entropy evaluation method%evolution process%driving force%Zhengzhou City
从影响生态环境脆弱性的多因素多角度出发,基于熵值法对郑州市1990—2013年生态环境综合脆弱性进行分析,并运用主成分分析法探讨了1990—2013年生态环境综合脆弱性的驱动力.结果表明:①郑州市1990—2013年生态环境综合脆弱性总体上呈波动缓慢下降趋势,从演变过程看,可以分为波动下降阶段(1990—2002)和波动上升阶段(2003—2013).②从系统层指标来看,子系统指标之间存在着较大的差异,其中,生态环境压力指数和生态环境承载力脆弱性指数呈波动上升趋势,而生态环境抗压力脆弱性指数呈持续快速下降趋势.③将选取的13个因子进行主成分分析,各项指标均通过检验.结果表明,经济发展因素和城镇化发展因素是郑州市生态环境综合脆弱性的主要驱动力.
從影響生態環境脆弱性的多因素多角度齣髮,基于熵值法對鄭州市1990—2013年生態環境綜閤脆弱性進行分析,併運用主成分分析法探討瞭1990—2013年生態環境綜閤脆弱性的驅動力.結果錶明:①鄭州市1990—2013年生態環境綜閤脆弱性總體上呈波動緩慢下降趨勢,從縯變過程看,可以分為波動下降階段(1990—2002)和波動上升階段(2003—2013).②從繫統層指標來看,子繫統指標之間存在著較大的差異,其中,生態環境壓力指數和生態環境承載力脆弱性指數呈波動上升趨勢,而生態環境抗壓力脆弱性指數呈持續快速下降趨勢.③將選取的13箇因子進行主成分分析,各項指標均通過檢驗.結果錶明,經濟髮展因素和城鎮化髮展因素是鄭州市生態環境綜閤脆弱性的主要驅動力.
종영향생태배경취약성적다인소다각도출발,기우적치법대정주시1990—2013년생태배경종합취약성진행분석,병운용주성분분석법탐토료1990—2013년생태배경종합취약성적구동력.결과표명:①정주시1990—2013년생태배경종합취약성총체상정파동완만하강추세,종연변과정간,가이분위파동하강계단(1990—2002)화파동상승계단(2003—2013).②종계통층지표래간,자계통지표지간존재착교대적차이,기중,생태배경압력지수화생태배경승재력취약성지수정파동상승추세,이생태배경항압력취약성지수정지속쾌속하강추세.③장선취적13개인자진행주성분분석,각항지표균통과검험.결과표명,경제발전인소화성진화발전인소시정주시생태배경종합취약성적주요구동력.
Proceeded from the multi-factor and angle that affected the vulnerability of ecological environment ,the comprehensive vulnerability of ecological environment in Zhengzhou during 1990 to 2013 was analyzed based on the entropy evaluation method,moreover,the driving forces of that were discussed by using the PCA(principal component analysis). The results showed as follows.(1)On the whole Zhengzhou ecological environment comprehensive vulnerability showed a slow downward trend from 1990 to 2013. Looked from the evolution process, that trend could be divided into two phases:wave decline stage from 1990 to 2002 and volatility rising stage from 2003 to 2013;(2)From the system data,there existed great differences between the three subsystems,among them the pressure index and fragile ecological environment bearing capacity index showed a trend of volatility ,while the fragile ecological environment stress index showed a trend of sustained and rapid decline;(3)Through analyzing the selected 13 factors by using PCA,all the indexes passed inspection. The results showed that the economic development and urbanization development factors were the main driving forces of Zhengzhou ecological environment comprehensive vulnerability.