Construction and Application of Plantscape Evaluation System of Wetland Parks in Semi-arid Area of Northwest China
In order to improve the quality of wetland park plant landscape,based on field research and drawing on relevant research results at home and abroad,applying analytic hierarchy process(AHP),a comprehensive evaluation system of plant landscape of wetland park in semi-arid area of northwest China was constructed by selecting 12 evaluation factors from four aspects of plant ecology construction,landscape form construction,space landscape construction and plant landscape potential value.The evaluation system was used to comprehensively evaluate the plant landscape of Lanzhou Yintan Wetland Park.The results reveal that the higher weight values of plant ecology creation(0.487)and landscape form creation(0.297)are more binding to the target layer in the criterion layer.Among the 12 evaluation factors,five factors,plant species diversity(0.149),local plant adaptation(0.149),plant community landscape resilience(0.134),overall environmental harmony(0.116),color and seasonal phase(0.111)contribute significantly to the plant landscape.In the 20 plant landscape samples within Yin Tan Wetland Park,two were of Class Ⅰ landscape,eight were of Class Ⅱ landscape,nine were of Class Ⅲ landscape,and one was of Class Ⅳ landscape.The overall quality of plant landscape in good,but the outstanding t plant landscape is lacking.The research results can provide reference for the study of plant landscape in the riverside wetland park in the semi-arid region of northwest China.
wetland parkplants landscapeevaluation systemanalytic hierarchy process methodLanzhou city