水利水电技术2017，Vol.48Issue(7)：95-101,7.DOI:10.13928/j.cnki.wrahe.2017.07.017
水库报废生态环境影响及其修复
Impact from reservoir retirement on eco-environment and its restoration
摘要
Abstract
In order to study the impact from reservoir retirement on eco-environment,the impact from reservoir retirement is divided into three levels,i.e.by taking the water-sediment process as the initial impact,the social and economic impacts are regarded as the final impacts,while the secondary impact is there between both of them,and then the characteristics of the comprehensiveness,contradictoriness,spatio-temporal continuity,uncertainty,etc.of the impact from dam removal are revealed as well.The impact from dam removal on eco-environment is distinguished from physical,chemical and ecological aspects:the physical impact embodies the impact on hydrology,sedimentation and topography,for which the hydrological impact from dam construction can be fully reversed by dam removal,the silted sediment is to be re-transported again and both the upstream and downstream river reaches are gradually reach to relatively stable gradient through the relevant headward erosion;the chemical impact mainly represents an impact on the water quality of river,while the ecological impact can not only improve the habitat quality of the relevant hydrobiontes,but also can generate negative impact on the acuatic habitat therein due to the degradation of water quality and th invasion of exotic species.The relevant countermeasures and methods are pertinently proposed herein that the waterfront vegetation in reservoir area and along the downstream river channel must be restored through re-introducing the indigenous plant groups,controlling the exotic species and accommodating the succession law of vegetation as well as eliminating and reducing the adverse impact from pollutant on the eco-environment,thus re-construct the riverain hydrological and topographical environment,protect and restore the hydrobiontes concerned,while the restoration measures must be duly adjusted through the relevant monitoring on the eco-environment.The study result can provide references for the eco-restoration of retired reservoir.关键词
水库报废/拆坝/生态环境/环境影响/濒水植被/淤积物Key words
dam retirement/dam removal/eco-environment/environmental impact/waterfront vegetation/sediment分类
建筑与水利引用本文复制引用
盛金保,赵雪莹,王昭升..水库报废生态环境影响及其修复[J].水利水电技术,2017,48(7):95-101,7.基金项目
“十一五”国家科技支撑计划项目(批准号2006BAC14B) （批准号2006BAC14B）
水利部公益性行业科研专项(批准号201501033) （批准号201501033）
国家重点研发计划(批准号2016YFC0401600) （批准号2016YFC0401600）
国家自然科学基金资助项目(51509156) （51509156）
