The Relationship Between Zhengzhou Yellow River Wetland Landscape Evolution And Urban Development

Based on the analysis of domestic and international research on wetland landscape pattern and optimized construction of the relation of urban development and wetland, and landscape ecology for a theoretical basis, this paper reveals the overall features of the Yellow River wetland landscape changes through a comparison of the landscape pattern index of Zhengzhou Yellow River wetland in the year 1987 and 2002 respectively. Meanwhile, combining with urban development, the paper also makes a thorough and in-depth analysis on the factors which cause the changes from socio-economic perspective and the optimization approach and measure of Zhengzhou Yellow River wet land landscape. Specific study as follows:1. the paper makes an analysis of the landscape pattern of Zhengzhou Yellow River wetland. Using quantitative approach of the landscape space pattern in landscape ecology as a theoretical basis, this paper analyses the landscape pattern of Zhengzhou Yellow River wetland in the year 1987 and 2002 respectively; Meanwhile, it evaluates the ecological state and the landscape composition state of the Yellow River wetland, and reveals the overall features of the Yellow River wetland landscape changes through investigatipon of actual conditions.2.the paper makes an analysis of the reasons which cause the Yellow River wetland landscape changes and the ecological problems following by these changes. On the basis of the research on landscape changes, the paper analyzes the effects of driving force cauesd by the changing landscape index and social economic materials on these changes, and suggests that the changes of the Yellow River wetland landscape are formed by human interference and natural interference, of which human interference is the main reason. Wetland landscape changes caused by human interference are making the wetland ecological environment steadily worse.3.the paper proposes Zhengzhou Yellow River wetland landscape ecological optimization strategy . Through the analysis of social and economic factors, the paper forecasts the the trend of the cross-Yellow River development of Zhengzhou City, and points out the interactive relationship of its development and Yellow River wetland. Combinng with the characteristics of dynamic changes in landscape of the study area, and its landscape state, the paper puts forwards the dominant ideology of landscape optimization among the Yellow River wetland: draw up an overall planning of the wetland landscape, make proper adjustments towards higher shattered artificial landscape, restore the damaged ecological environment as soon as possible, restore the landscape system, construct a rational layout of the landscape space structure. Based on this ideology, we should divide Zhengzhou Yellow River wetland into four type zones, such as ecological reservation, ecological restoration, tourist area, development of production areas. At the same time, the paper puts forward the Yellow River wetland ecological protection measures.