CAJ | 학술논문

为科学评判河南省的生态安全性,运用生态压力指数对河南省1990～2005年的生态安全进行了时空差异分析.结果表明:河南省的生态压力指数从1990年的1.25增高到2005年的2.29,16a间生态压力持续增高,生态压力指数一直大于1,生态环境始终处于不安全状态.从空间变化上看,洛阳、焦作、新乡、濮阳4市的安全等级指数由1994年的4级(较不安全)变化到2004年5级(很不安全),三门峡、开封、平顶山、周口、南阳、驻马店和漯河市由5级(很不安全)变为6级(极不安全),鹤壁市和信阳市保持5级(很不安全)不变,商丘市则持续6级(极不安全),而郑州、安阳、许昌、济源则由原来的4级(较不安全)增加到6级(极不安全).由此可知,河南省各地市的生态不安全程度正在逐渐增大,可持续发展形势严峻,必须调整现有的经济结构,提高资源利用率和单位生物生产土地面积的生产力.图4,表3,参14.
위과학평판하남성적생태안전성,운용생태압력지수대하남성1990～2005년적생태안전진행료시공차이분석.결과표명:하남성적생태압력지수종1990년적1.25증고도2005년적2.29,16a간생태압력지속증고,생태압력지수일직대우1,생태배경시종처우불안전상태.종공간변화상간,락양、초작、신향、복양4시적안전등급지수유1994년적4급(교불안전)변화도2004년5급(흔불안전),삼문협、개봉、평정산、주구、남양、주마점화탑하시유5급(흔불안전)변위6급(겁불안전),학벽시화신양시보지5급(흔불안전)불변,상구시칙지속6급(겁불안전),이정주、안양、허창、제원칙유원래적4급(교불안전)증가도6급(겁불안전).유차가지,하남성각지시적생태불안전정도정재축점증대,가지속발전형세엄준,필수조정현유적경제결구,제고자원이용솔화단위생물생산토지면적적생산력.도4,표3,삼14.
In order to precisely determine ecological safety in He'nan Province,this article utilized the ecological tension index to analyze the spntial and temporal variations of ecological security in He'nan Province from 1990 to 2005.The result indicated that the ecological tension in-dex of He'nan Province increased fiom 1.25 in 1990 to 2.29 in 2.20055,the ecological pressure advanced continually during these sixteen years,the ecological tension index was always greater than 1 ,and the ecological environment was in an unsafe condition thronghout.Spatially, in thetwo years of 1994 and 2004, security grading index increased from the original level 4 (relative insecurity) to level 5 (very unsafe) in Luoyang,Jiaozuo,Xinxiang and Puyang, up to level 6 (extreme insecurity) from level 5 (very unsafe) in Sanmenxia, Kaifeng, Pingdingshan,Zhoukon,Nanyang,Zhumadian and Luobe,and to level 6 (extreme insecurity) from the original level 4 (relative insecurity) in Zhengzhou, Anyang,Xuchang, Jiyuan. Whereas, security grading index maintained level 5 (very unsafe) invariable and level 6 (extreme insecurity) in Hebi,Xinyang and Shangcliu,respectively. It can be seen that the ecology unsafe degree is increasing gradually all over Henan Province;the sustain-able development situation is stern. Therefore, we should adjust the existing economic structure,raise the utilixation rate of resources,increasing the productivity of unit biological production land area.