长江下游平原河网地区生态护岸对河流生态系统影响的评价指标体系EI北大核心CSCD

为评价长江下游平原河网地区生态护岸对河流生态系统的影响,构建了生态护岸对河流生态系统影响评价指标体系。根据生态护岸对河流生态系统的影响方式以及健康河流的特征,提出以水质状况、生物状况、水文特征、地貌特征和社会经济5个方面作为评价指标体系的准则层;采用频度分析法和相关性分析法,对现有关于生态护岸、河流生态系统评价等的研究成果进行分析,筛选出18项关键指标;提出了指标赋分、生态护岸综合影响指数计算方法以及影响等级标准,可用于长江下游平原河网地区生态护岸建设的评价。

Evaluation index system for ecological revetment impact on river ecosystem in plain river network at lower reaches of the Yangtze River

In order to evaluate the ecological revetment impact on the river ecosystem in plain river network at lower reaches of the Yangtze River, an evaluation index system was constructed. Based on the pattern of ecological revetment impact on the river ecosystem and the characteristics of healthy rivers, 5 aspects of water quality status, biological status, hydrological characteristics, geomorphological characteristics and socio-economy were proposed as the criterion layers of the evaluation index system. Furthermore, frequency and correlation analysis methods were applied to analyze the existing research findings in ecological revetments and river ecosystem evaluation, where 18 key indicators were highlighted. Moreover, a scoring method, a calculation method for the comprehensive index of the ecological revetment impact and criteria for grading the impact were proposed. The system can be used to evaluate the construction of ecological revetment in plain river network at lower reaches of the Yangtze River.