Wang Ruiling1 Michiel Van Eupen2 Wang Xingong1 Huang Chuong3 Zhu Shuyu 4 Shan Kai 4
(1.Yellow River Basin Water Resources Protection Bureau, Zhen Zhou 450004, China; 2.Alterra Green World Research，Netherlands; 3.Institute of geographic science and nature resource research, CAS，Beijing 100101,China; 4. Yellow River Delta Nature Reserve Bureau.Dong Ying 257061, China)
Abstract:This paper analyzes the habitat features of different wetland vegetations in Yellow River Delta, identifies water and salt conditions of vegetation succession and explores the rules of vegetation succession. Based on the model LEDESS, integrates a great number of expert knowledge of relevant subjects, such as ecology, plant physiology, geography, hydraulic and agrology, couples the hydraulic model and underground water model, quantificationally simulates vegetation successionseries under different ecological water supplement situations，shows the resultswith visual and spatial expression. Analysis LEDESS model simulation results: ①After ecological water supplement, vegetation succession positive development，barren land, alkaline land, tidal flat decreases, while area of wetland marsh, ordinary meadow, and shrub increases. ②Indicator species habitat suitability area increases，bird habitat quality improved significantly. Using LEDESS model to simulate vegetation succession under the situation of ecological water, to the image-makers to "see" the vegetation succession tendency and ecological effect after carrying out ecological water supplement measures, and provide the technical support for the ecological water supplement, wetland protection and rehabilitation in Yellow River Delta wetland.
Key words: The Yellow River Delta, wetland vegetation succession, LEDESS model
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