Beijing City Park Wetland Ecological Environment Quality Evaluation

Park wetland is an important part of ecosystem in urban and it has great function in improving the eco-environment quality. However, it is serious control by human being and the decision-making of park management has direct effect on the development and balance of the ecosystem.Based on remote sensing and Geographic Information System technologies, the landscape ecology and water evaluated theories, the evaluated factors system for eco-environment quality of park wetland in Beijing is built. With these factors, an assessment of eco-environment quality is made. We get the data from Iknos image to assess the region eco-environment quality in large scale and from the instrument of hydro lab to assess water quality, which is the most sensitive factor in small scale.According to the principles of integrity manipulability and so on, we build the evaluated factors system for wetland eco-system and assess the eco-environment quality of six parks in Beijing. Based on this, we calculate the all parks CEI. The eco-environment quality of the summer palace is best because it's value is 8.517 and of Yu Yuan Tan park and Yuan Ming Yuan park is better; Chao Yang park and Bei Hai park is good but Tao ran ting park is bad.