合肥环城公园不同群落类型碳储量

对安徽省合肥市环城公园不同群落类型的碳储量进行了调查分析，结果表明，园林树木生物量碳储量范围为1．38～142．04kg／m^2，平均碳储量为24．97kg／m^2；不同群落类型的碳储量大小依次为：阔叶林〉针阔混交林〉针叶林〉疏林，群落的固碳能力（树木生物量与土壤固碳）顺序同此。表层土壤的有机碳含量变异较大，其变化范围为8．9～35．2g／kg，平均为18．89g／kg。

Organic Carbon Storages in Different Urban Forests on Huancheng Park in Hefei

An investigation of organic carbon storage in the different urban forests was conducted in Huancheng Park of Hefei, The results showed that the biomass carbon storage in urban trees averaged 24.97 kg/m^2 with a range from 1.38 - 142.04 kg/m^2. The order of the biomass carbon storage for the different urban forests was broadleaved tree stand 〉 conifer-broadleaved mixture 〉 coniferous tree stand 〉 sparse tree stand. There existed a significant difference in soil organic carbon （SOC） content. The mean SOC content of the surface soil was 18.89 g/kg with a range from 8.9 - 35.2 g/kg. The order of SOC storage for the different urban forests was broadleaved tree stand 〉 conifer-broadleaved mixture 〉 coniferous tree stand 〉 sparse tree stand. The capacity of carbon sequestration for the different urban forests was ranked as broadleaved tree stand 〉 conifer- broadleaved mixture 〉 coniferous tree stand 〉 sparse tree stand.