Wetland Space Landscaping of River Valley City：A Case Study of Yan′an

Wetlands are precious natural resources on earth，which contain great ecological value and social benefits.In construction of ecological landscape city，reasonable utilization and development of urban wetland resources could make them be modern city landscapes with ecological functions and add recreation spaces and tourism resources to city.On basis of mastering natural characteristics of urban wetland，status and existing problems of wetland was analyzed with study of Yan′an，some rational proposals of construction methods of urban wetland landscaping in Yan′an were proposed，and construction mode of Yan′an wetland park was also systematically discussed to provide reference and enlightenment to wetland landscaping construction of other similar river valley cities.