现代生态景观视野下城市树木价值计算方法

Value Calculation of Urban Trees in the Perspective of Modern Landscape Ecology

城市树木是城市有价财产,价值体现在木材产品和生态服务两个方面。为了能够通过货币来表达和评估城市树木的实际价值,通过参考国外城市树木价值计算方法、森林树木价值研究成果、政府官方网站数据、国际木材价格以及咨询城市林业专家的方法,提出城市树木价值计算公式:城市树木的价值=胸高(1.3m)树干断面积×树木基价×树种系数×生长位置系数×生长情况系数×观赏特性系数×生态效益系数,并确定计算公式中的树木基价以及系数赋值的方法和标准。

Urban trees are negotiable property the value of which can be judged by the timber and ecological service provided by the trees In order to express and assess the real value of urban trees in terms of currency, by reference to the foreign methods calculating the value of urban trees, the research results of the value of forest trees, the official data from government websites, the international prices of timber and the consultation from urban forestry experts, the formula for calculating the value of urban trees is put forward： The value of urban trees = the trunk area of breast height （13 m） × the base value of trees × the coefficient of species× the coefficient of growth position× the growth coefficient × the coefficient of ornamental characteristics ×the coefficient of eco-efficiency. Also, the method and standard used to calculate the base value and co-efficiency value of urban trees in the formula were decided.