CAJ | 학술논문

基于流域水生态功能区的水生态安全评价是指导流域水生态“分类、分区”综合管理的前提。本文在流域中小尺度上依据水生态空间格局分异的自然特征和社会属性，以辽河流域的清河和凡河支流为对象，在流域水生态功能三级分区的基础上，运用“压力-状态-响应模型”（PSR），通过对流域社会经济压力指标、环境压力指标、城市发展指标、资源环境发展指标、投资指标、治理指标等因素分析，筛选出13个水生态安全评价指标。利用生态安全综合指数法，将流域水生态安全划分为极不安全、不安全、基本安全、安全、非常安全五个级别。其中，清河流域7个水生态功能三级区中Ⅳ-5-9、Ⅳ-5-10、Ⅳ-5-11、Ⅳ-5-12、Ⅳ-5-14区处于基本安全等级，Ⅳ-5-8、Ⅳ-5-13处于不安全等级；凡河流域4个水生态功能三级区中，Ⅳ-5-1、Ⅳ-5-2、Ⅳ-5-3区处于基本安全等级、Ⅳ-5-4区为较安全等级。基于水生态功能区的水生态安全评价和级别划分可为辽河流域水生态保护与水生态管理提供科学依据。
기우류역수생태공능구적수생태안전평개시지도류역수생태“분류、분구”종합관리적전제。본문재류역중소척도상의거수생태공간격국분이적자연특정화사회속성，이료하류역적청하화범하지류위대상，재류역수생태공능삼급분구적기출상，운용“압력-상태-향응모형”（PSR），통과대류역사회경제압력지표、배경압력지표、성시발전지표、자원배경발전지표、투자지표、치리지표등인소분석，사선출13개수생태안전평개지표。이용생태안전종합지수법，장류역수생태안전화분위겁불안전、불안전、기본안전、안전、비상안전오개급별。기중，청하류역7개수생태공능삼급구중Ⅳ-5-9、Ⅳ-5-10、Ⅳ-5-11、Ⅳ-5-12、Ⅳ-5-14구처우기본안전등급，Ⅳ-5-8、Ⅳ-5-13처우불안전등급；범하류역4개수생태공능삼급구중，Ⅳ-5-1、Ⅳ-5-2、Ⅳ-5-3구처우기본안전등급、Ⅳ-5-4구위교안전등급。기우수생태공능구적수생태안전평개화급별화분가위료하류역수생태보호여수생태관리제공과학의거。
An aquatic ecoregion-based assessment for water ecological security can offer a premise for the integrat-ed management guidance of watershed ecological security with the rule of“by type,by region”.Based on the natu-ral features and social attributes of the spatial differentiation of ecological security pattern in basins on small and medium scales,the typical two tributaries in the northern Liaoning province were selected as the study areas,i.e. the Qinghe river and the Fanhe river.On the basis of the third grade aquatic ecoregion,6 elements including socio-economic pressure,environmental pressure,urban development indicators,development of resources and environ-ment indicators,investment indicators,governance indicators were anlayzed and 1 3 indexes were selected according to the pressure-state-response model(PSR).The ecological security is divided into five grades according to ecolog-ical security index by using a comprehensive ecological security index method,and they were specially insecurity, insecurity,basically security,security,special security.At the Qinghe river basin,ecoregion with codes ofⅣ-5-9 ,Ⅳ-5-10,Ⅳ-5-1 1 ,Ⅳ-5-12,Ⅳ-5-14 are basically security grade and those with codes ofⅣ-5-8 andⅣ-5-13 belong to insecurity grade.The ecoregions with codes ofⅣ-5-1 ,Ⅳ-5-2,Ⅳ-5-3 of Fanhe river basin belong to basically security grade,and that with code ofⅣ-5-4 is security grade.The results of aquatic ecoregion-based ecological se-curity and grade division offer scientific references for water ecological protection and overall ecological manage-ment in Liaohe river basin.