CAJ | 학술논문

构建河流生态状况分级系统可为实现河流生态修复目标定量化提供技术方法。本文从自然河流生态状况的河流参照系统选择与构建出发，依据与参照系统的偏离程度，提出了河流生态状况分级系统的生态指标矩阵方法和指标赋值准则。生态指标矩阵由要素层和指标层构成，包括生物质量、水文、物理化学和河流地貌4个要素，下设10项生态指标。从河流生态系统演替的动态特征出发，阐述了河流生态状况分级系统的科学内涵，讨论了河流生态状况分级系统在确定生态修复目标、识别关键胁迫因子以及进行河流健康评估方面的应用。
구건하류생태상황분급계통가위실현하류생태수복목표정양화제공기술방법。본문종자연하류생태상황적하류삼조계통선택여구건출발，의거여삼조계통적편리정도，제출료하류생태상황분급계통적생태지표구진방법화지표부치준칙。생태지표구진유요소층화지표층구성，포괄생물질량、수문、물이화학화하류지모4개요소，하설10항생태지표。종하류생태계통연체적동태특정출발，천술료하류생태상황분급계통적과학내함，토론료하류생태상황분급계통재학정생태수복목표、식별관건협박인자이급진행하류건강평고방면적응용。
Rating systems of river ecological conditions can act as a technical method to quantify the river ecological restoration objectives. Originated from the selection and construction of river reference system with ecological status of natural rivers, the ecological index matrix and index valuation standard are proposed based on the degree of deviation from the reference system. The ecological index matrix consists of 10 eco-logical indices in 4 aspects, i.e. the characteristics of biology, hydrology, and water quality and river geo-morphology. On account of the dynamic characteristics of the river ecosystem succession, the connotations of rating systems were discussed,and the applications of rating systems of river ecological conditions to de-termine the ecological restoration objectives, identify critical stress factors and assess river health were re-searched.