Assessment on the ecological vulnerability of wetland of China Irtysh river valley

This article construct an index system assessment model for the wetland ecology, and has made comprehensive, qualitative, and quantitative research and assessment on the condition and characteristic of the ecological vulnerability of wetland of China Irtysh river valley, it has mainly used the analytical hierarchy process (AHP) to determine the index weight, and comprehensive index method to calculate vulnerability of westland. The result indicates: in the comprehensive assessment hierarchy, the influence of the anthropogenic influence factor to the target hierarchy is the highest being 0.5675, the weight of the natural influence factor takes the second place being 0.2726, the influence of expression factor is the lowest being 0.1599. The ecological vulnerability grade of wetland of China Irtysh river valley is 5, it indicates the ecological system of the wetland of the local area is in middle vulnerability.