Approach Of Ecological Optimizing Of River Landscape In Urbanization

Based on the analysis of theoretical and practice research on urban river and waterfront space at home and abroad, this thesis takes the landscape ecology and eco-hydraulic engineering as theory support, attemps to research the influence of Jialu river basin and river corridor in Zhengzhou urbanization at mesa-scale dominion. This paper taking Zhenghou scenic spot as the case, and by means of the remote sensing data (RS) and the analysing function of Geography Information System (GIS), reveals its characteristic of landscape spatial pattern and analysises the river corridor system of Jialu river basin. Finally, this dissertation puts forward the practical approach of ecological optimizing of Jialu river basin and river corridor scenic spot. The concrete results are as follows:Research the landscape character of Jialu river basin and the influence of river system in the urban space expansion. Firstly, this thesis analyses the landscape character of natural, biologic and cultural for Jialu river basin. Secondly, through analysing the status of urban space expansion, this thesis reveals the influence to river corridor of Jialu river basin in the urban space expansion.Research on Jialu river basin and river corridor landscape spatial pattern based on Remote Sening(RS) and Geographic Information System(GIS). With the RS and GIS techniques as the support, this paper sets up the landscape database of Jialu river basin, analyses landscape classification of Jialu river basin. It reveals the overall characters of landscape spatial pattern in the urbanization. Furthermore, it analyses the space pattern of river corridor system. This thesis posts the overall arrangement character and space structure situation of Jialu river corridor. It reveals urbanization and human activities take effect on Jialu river corridor.Research on the strategy of optimizing landscape ecology based on the study of landscape spatial pattern and river corridor. Through the analysis of landscape pattern and river corridor system in Jialu river basin, this paper proposes the guiding ideology of optimizing landscape pattern: maintains the natural ecological base of Jialu river basin; sets up efficient urban forest ecosystem; transformates and optimizes spatial distribution of Zhengzhou; maintains continuity of landscape ecological process and patterns. At the same time, this paper puts forward optimization measures of river corridor: constructs complete river corridor system; implements trilinear control model for protecting river corridor of Jialu river system; recovers ecological function of Jialu river system; builds complete recreation space of Jialu river system. This paper puts forward prospective development strategy for recovering and rebuilding regional and river landscape.