| This study described urban forest and its value at home and abroad based on the current situation, the value of theory was used to evaluate on urban forest resources on research and analysis, the research area Zhoukou completed the study area to Zhoukou study of forest resources, the main advantage of the seventh Zhoukou 2007 forest resource inventory data, the first time in 2008 Zhoukou Greenland survey data and 2009 statistics on urban construction Zhoukou statements and other materials, application of RS, GIS and GPS technology, using field survey data to correct interpretation of satellite images used in the urban forest evaluation of the value of school evaluation methods, the study of the value of urban forest in the region's economic value, social value, ecological value of the value of three comprehensive assessment, Development stage with the final results to adjust the coefficients Using Excel software to analyze the findings, through used theories and methods of above studies, and conducted to obtain some results.Zhoukou Urban Forest has enormous economic, social and ecological benefits, annual output value 3,923,079,100 yuan, mainly the economic value of urban forest, accounting for 84.48%. The present value of these great benefits of forests is not included in national accounts series, the scientific method need to be taken to the internalization of these external benefits. We take a 5% discount rate for discounting the development stage with coefficients adjusted., the present value of Zhoukou urban forest in 2009 is 4,479,387,900 yuan, of which the economic value is 3,855,078,500 yuan, accounting for 84.48%; ecological value is 660 250 500 yuan, accounting for 14.47%; social value is 48,043,800 yuan, accounting for 1.05%. The value of the share of land was very prominent, there is 3,774,278,600 yuan, accounting for 84.7%, is 5.35 times that of other values. Ecological value and social value and is 7.73 times the value of the trees. At least the value of SO2 is 1,867,600 yuan, accounting for only 0.042 percent. Constitute a proportion of value, economic value accounting for nearly 84.26% of the proportion of the value of only 15.74% other. Economic value, the value of the share of green land, extremely high, accounting for 97.90% of economic value; in social values, the value of forest recreation accounted for 9.08%, providing employment to 90.92%; in ecological value, sterilization accounted for 57.36%, noise reduction accounted for 19.12%, block dust was 17.00%, while the conservation of soil was 2.37%, carbon sequestration and oxygen to remove accounted for 3.87% at least the proportion of SO2, 0.28%.The value of Zhoukou urban forest was a dependent value and the great differences between sub-features. One hand, quantity and quality of their urban forest have a decisive effect on its value. On the other hand, the value of urban forest evaluation is affected by the market and people's ability to pay the price and environmental impact of cognitive ability, too. Research has strong policy implications, for establishing the correct values of urban forest, the local contribution of urban forest of Zhoukou know to economic development, promote coordinated development and urban forests, to achieve sustainable economic development of Zhoukou has important practical significance .
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