Beijing Urban Ecological River Vegetation Building Preliminary Evaluation Study

The ecological river construction is one of most important measures to restore the damaged river,and the focus on river ecological restoration in and abroad. The study on the construction theory and application of ecological river can provide theory bases and technology support to the ecological river construction, possessing most important practice meaning.This paper through ecological river building theory study, define the ecological river concept, content and function, The construction of river ecological concepts and principles. Through investigation, evaluation Tuchenggou of Liangshui river,Gaoliangqiao of Zhuanhe river,Chaoyang of Wenyu river and Qinghe ditch ,Yangshan ditch vegetation distribution of river bank protection, Made ecological river bank vegetation restoration goals , plant selection principle and Beijing urban ecological river revetment plants typical configuration mode.The results shows that:l)The cities'ecological river is artificial and formed by ecological engineering technologies such as ecological riverbed and ecological revetment. The ecosystem of cities'ecological river should be stable, safety, harmonious, healthy, various and full of function.2)In this paper, on the basis of comparing the abilities of protecting slopes between woody plants and herbaceous plants, a conclusion about applying principles of hydrophytes, slope plants and mound plants was drawn. Finally, plant Species adapted to the construction of Beijing cities' ecological river were recommended.3) Ecological river green plants should be based on the allocation of different ecological river bank protection types (Hydrophilic revetment,Ecosystem Conservation revetments,Landscape protection revetment) .By summing up we can obtained, There has Natural communities,Stereo Community and Community watch three models.