A Study On The Construction Of Urbanization On The Ecosystem Services In DongGuan City

With quickening construction in urbanization, it has been known gradually that ecosystem service functions. In order to be able to better evaluate ecosystem services, the urbanization and the relationship between ecosystem services to be understand. Make more people to participate in urbanization construction, and maintenance of ecosystem services. Should from the Angle of quantitative analysis of urbanization, the ecological environment, ecological structure, ecological succession of impact.In this paper, In Dongguan guangdong province as an example, Use Google earth software remote sensing image, and related documents and data, analyzes the urbanization level, the total value of ecosystem function, a single value, explain the Dongguan urbanization construction effect on ecosystem services.Through this study, draw a conclusion:(1) Compared with 2005-2011, different degrees of changes have taken place, all kinds of ecosystem area in Dongguan. Forest, farmland and water area decreased, Grassland, construction land and unused land area increased. Area is reduced to class, water area reduction, most 13342.6 hm2, followed by farmland and forest, reduce 8788.6 hm2 and 2304.1 hm2 respectively; Area increase Land class, construction land growth in the first place,11175.7 hm2 Change range of grassland is the largest, the dynamic attitude is 64.55, the second is unused, the smallest is the forest, the rate of 6.29%, the attitude is-1.05.(2) Compared with 2005-2011, Ecosystem service value change in Gongguan, The total economic value of the ecosystem service function to reduce 575.969 million yuan; Water ecosystem service function value reduction is the largest, reaching 542.729 million yuan, the second is farmland (53.736 million yuan) and forest (44.547 million yuan). Grassland and unused land ecosystem service value change rate is the largest,387.3% and 276.8% respectively.(3) Compared with 2005-2011, Single ecosystem service value change in Dongguan, Single ecosystem service function value is given priority to with water conservation and waste management. Each single ecosystem service function value reduced to some extent, the water conservation, waste treatment and three types of recreation ecosystem service function value by more than 20%, reduce the minimum service values of soil formation and protection,1%. (4) Compared with 2005-2011, Each individual variations in ecosystem service function value in Dongguan:Water conservation> Waste treatment> Entertainment> Maintai n biodiversity> Food production> Production of raw materials= Climate regulation> gas regulation> Soil formation and protection.The fall in the value of the ecosystem services in Dongguan, reflect the region ecosystem for human capability of providing various services in the continued to decline, should further optimize the adjustment of land use safeguard regional ecological land area, maintaining the regional ecological security system.