山西省公路绿化植被生态效益评价

发布时间：2018-08-21 10:27

【摘要】：以山西省公路绿化工程为对象,对现有公路绿化带结构类型及生态效益进行调查。按照不同的绿化带结构类型选择典型路段设置调查样带,在样带内设置梯度采样点和观测点,以树种组成、密度、郁闭度、疏透度、LAI等关键性林带特征因子对各生态效应的影响为依据,建立公路绿化带生态效应模型,分析公路绿化植被对SO2和NO2的净化效应、滞尘效应、降噪效应、降温效应。通过生物量计算绿化植被碳储量,分析山西省公路绿化植被的固碳释氧效应,并采用生态经济学中替代市场法,对山西省公路绿化植被的主要生态服务功能进行相应的货币化计量。结果表明:至2011年,山西省公路绿化工程建设的有效绿化面积为29194.29 hm2,碳储量总计887343.6 t,山西省主要公路绿化植被对SO2和NO2的年净化效益经济价值分别为54.3和48.7万元·a-1,公路绿化植被年滞尘效益为442.1万元·a-1,降噪效益为98.7万元·a-1,公路绿化植被的固碳效益为26271.3万元·a-1,释氧效益为7744.1万元·a-1,降温效益为21.4万元·a-1,总计山西省主要公路绿化植被生态效益经济价值为3.47亿元·a-1。
[Abstract]:Taking the highway greening project of Shanxi Province as the object, the structure type and ecological benefit of the existing highway green belt are investigated. According to the different green belt structure types, the typical section of road was selected to set up survey sample, and the gradient sampling points and observation points were set up in the transect, which were composed of tree species, density and canopy density. Based on the influence of key forest belt characteristic factors such as thinning degree and Lai on each ecological effect, the ecological effect model of highway green belt was established, and the purification effect, dust retention effect, noise reduction effect and cooling effect of highway greening vegetation on SO2 and NO2 were analyzed. The carbon storage of greening vegetation in Shanxi Province is calculated through biomass calculation, and the carbon sequestration and oxygen release effect of highway greening vegetation in Shanxi Province is analyzed, and the alternative market method in ecological economics is adopted. The main ecological service functions of highway greening vegetation in Shanxi Province were measured with monetization. The results show that by 2011, The effective greening area of highway greening project in Shanxi Province is 29194.29 mm ~ 2, and the total carbon storage is 887343.6 t. The annual purification benefit and economic value of main highway greening vegetation to SO2 and NO2 in Shanxi Province are 54.3 yuan and 487000 yuan a ~ (-1), respectively. The dust benefit is 4.421 million yuan a-1, the noise reduction benefit is 987000 yuan a-1, the carbon sequestration benefit of highway greening vegetation is 262.713 million yuan a-1, the oxygen releasing benefit is 77.441 million yuan a-1, and the cooling benefit is 214000 yuan a-1.The total economic value of main highway greening vegetation ecological benefit in Shanxi Province is 347 million yuan a ~ (-1).
【作者单位】：山西农业大学林学院;山西省林业厅;
【基金】：山西省科技攻关项目(20100311015) 山西省林业厅科技支撑项目(G09-47) 山西农业大学科技创新基金项目(201303) 山西农业大学引进人才科研启动基金项目资助
【分类号】：F542;S731.8

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