摘要
长江中下游分布着较多洲滩型湿地,存在生态功能退化、生物多样性减少、生物栖息地破碎等问题。以长江中下游典型江滩湿地——绿水湾湿地为例,针对其湿地生态系统原始风貌与结构完整性受损严重的现状,以近自然河流湿地生态系统作为生态修复的总体目标,提出以涉禽、游禽为指示物种,在满足长江防洪要求、水文特征的基础上确定生境类型及空间总体布局,采用湿地基底恢复、湿地水文水质恢复、湿地生态系统结构恢复3项关键技术进行湿地生态系统重构,并提出关键技术方案。提出的湿地生态系统重构思路、关键技术与方案,可应用于南京市江北新区长江岸线湿地保护与环境提升工程,并为长江中下游洲滩型湿地的生态保护与恢复提供可借鉴的样本。
There are many marshland wetlands distributed in the middle and lower reaches of the Changjiang River,they are faced with problems such as ecological function degradation,biodiversity reduction and habitat fragmentation.This paper takes the typical Changjiang River beach wetland,Lushuiwan wetland,as the study area.In view of the serious damages to the original landscape and structural integrity of its wetland ecosystem,taking restoring to the nearly natural river wetland ecosystem as the overall objective and with wading birds and swimming birds as the indicator species,we determine the habitat type and overall spatial layout on the basis of meeting the flood control requirements and hydrological characteristics of the Changjiang River.Three key technologies,wetland base restoration,wetland hydrology and water quality restoration,and wetland ecosystem structure restoration,are adopted to reconstruct the wetland ecosystem,and key technical schemes are proposed.The ideas,schemes and key technologies of wetland ecosystem reconstruction proposed in this paper can be applied to the Changjiang River shoreline wetland protection and environmental improvement project in Jiangbei New Area,Nanjing City,and provide reference for the ecological protection and restoration of beach wetlands in the middle and lower reaches of the Changjiang River.
作者
管桂玲
付东王
程昝
黄龙燕
GUAN Guiling;FU Dongwang;CHENG Zan;HUANG Longyan(Nanjing Water Planning and Designing Institute Co.,Ltd.,Nanjing 210022,China)
出处
《人民长江》
北大核心
2023年第11期36-42,共7页
Yangtze River
关键词
生态修复
湿地修复设计
洲滩型湿地
长江江滩
ecological restoration
wetland restoration design
beach wetland
Changjiang River beach
