摘要
Abstract
The Liaohe Estuary Wetland is an important ecological protection area in northern China.To effectively reduce the adverse impact of human activities on the wetland ecology,it is very important to scientifically and reasonably demarcate the protec tion scope.This paper,through the analysis of the environmental basis,ecosystem characteristics and wetland evolution of the Liao River estuary,proposes that the multiple water environments formed by the convergence of rivers,seas and canals are the basis for the eco logical maintenance and development of the estuary.In this paper,the two-dimensional hydrodynamic model is used to simulate and calculate the frequently encountered floods and tides that play a dominant role.Combined with the topography and features on both banks,the main hydrodynamic influence range is delineated,and the ecological low-impact boundary of the Liaohe River Estuary is proposed as the theoretical dividing line for ecological protection and social development.It has been applied in the construction of flood con trol projects at the mouth of the Liaohe River,the revision of the scope of the estuary nature reserve,the demarcation of ecological red lines,and the construction of the Liaohe National Park,achieving good results.关键词
辽河口/多重水环境/生态低影响边界/水动力学Key words
Liaohe Estuary/multiple water environments/ecological low-impact boundary/hydrodynamics分类
建筑与水利
