Comprehensive evaluation and analysis of shoreline health in Lake Dongting

为促进湖泊岸线资源的保护和科学高效利用，实现人与岸线的可持续协调发展，亟需构建湖泊岸线的健康综合评价体系。选取水质优劣状况、营养状况、湖岸稳定性、植被扩张比例、水鸟状况和景观舒适度等13个指标因子，以洞庭湖为例，将东洞庭湖、南洞庭湖和目平湖岸线划分为10个岸线段，设置水文水质、形态结构、生物群落和社会服务4个准则层，构建了洞庭湖岸线健康综合评价体系。结果表明，洞庭湖各岸线段生物群落和形态结构功能良好，都处于健康及以上状态，部分岸线段水文水质和社会服务功能处于亚健康状态。东洞庭湖SL-D3岸线综合评价为亚健康，其余岸线的综合评价结果都处于健康及以上状态。洞庭湖岸线的植物群落状况和东洞庭湖的水文水质状况较差。该评价体系对洞庭湖岸线现状的评估具有可行性，其评价结果可为湖泊岸线的规划管理与保护修复提供科学依据。;It is urgent to construct a comprehensive evaluation system of lake shoreline health to promote the protection and scientific and efficient utilization of shoreline resources and realize the sustainable and coordinated development of humans and shorelines. Taking Lake Dongting for example, by dividing the shorelines of the east Lake Dongting, the south Lake Dongting, and Lake Muping into 10 shoreline segments, this study constructed a healthy comprehensive shoreline evaluation system consisting of hydrology and water quality, morphological structure, biological community, and social service. The shoreline evaluation system selected 13 indicators including water quality, nutrition, shoreline stability, vegetation zone expansion ratio, waterfowl status, and landscape comfort level. The results show that the biological community and morphological structure of each shoreline segment in Lake Dongting are healthy or above, and the hydrology and water quality and social service function of some shoreline segments are sub-healthy. The comprehensive evaluation of the SL-D3 is sub-healthy, and the other shoreline is healthy or above. The plant communities of the shoreline in Lake Dongting and the hydrology and water quality of the east Lake Dongting are poor. This evaluation system is feasible to evaluate the current status of shorelines in Lake Dongting, and the evaluation results provide a scientific basis for the planning, management, protection, and restoration of lake shorelines.