昆明市金碧公园部分生态效益及其抚育管理成本分析

以昆明市金碧公园为研究对象，运用ArcView GIS 3.2软件和CITYgreen 5.0模型结合实地调查，对其2007年所产生的部分生态效益及抚育管理成本进行了量化分析，并对该公园植被2017年的生长状况及其所能产生的部分生态效益进行了模拟预测。结果表明:金碧公园2007年植被的抚育管理成本为48 110元；碳储存总量为50.13 t，当年碳吸收量为1.13 t，清除大气污染物65.36 kg， 部分生态效益总值为61 344.89元，效益成本比为1.28: 1。模拟得到的碳储存总量为66.52 t， 当年碳吸收量为1.50 t，清除大气污染物86.75 kg， 2017年部分生态效益总值81 402.64元。综合而言金碧公园树种结构比较合理，乔灌草搭配比例适中，该绿地系统目前具有较好的生态效益并具有较大的效益增长空间，对改善周边的居住和商业环境起到了良好的作用。西北林学院学报23卷第4期刘江涛等昆明市金碧公园部分生态效益及其抚育管理成本分析

Quantitative Analysis on Partial Ecological Benefits and Related Tending Cost of Jinbi Park, Kunming

Based on field investigation, the quantitative analyses on partial ecological benefits produced by Jinbi Park in Kunming City in 2007, as well as related tending expenses were carried out by means of ArcView GIS 3.2 and CITYgreen5.0 software. Meanwhile, partial ecological benefits that would be produced by the same greenspace were forecast by the model. The conclusions were drawn as follows: (1) The tending and management cost in 2007 for the greenspace in Jinbi Park was 48 110 yuan(RMB). The total carbon storage in 2007 was 50.13 t; the carbon sequestration quantity in 2007 was 1.13 t, and the quantity of 5 main types of air pollutants removed by the greenspace in 2007 was 65.36 kg. The total value of the partial ecological benefits produced in 2007 was 61 344.89 yuan. The benefit cost ratio was 1.28∶1 in 2007. (2) By modeling the growth of the vegetation, the total carbon storage by Jinbi Park would be 66.52 t in 2017, the carbon sequestration quantity in 2017 would be 1.50 t; the quantity of 5 main typess of air pollutants removed by the greenspace in the same year would be 86.75 kg, and the total value of the partial ecological benefits produced in 2017 would be 81 402.64 yuan. (3) Generally speaking, the plant species structure in Jinbi Park was reasonable, the species disposition proportion of arbor trees, shrubs and turf grasses was appropriate, which could produce high ecological benefits, and with a large potential to increase the ecological benefits indicating that Jinbi Park are played an important role in improving the living and marketing environment in the surrounding area.