紫金山森林固氮释氧量的研究

Quantif ication of nitrogen fixation and oxygen release of the forest in Zijin Mountain

基于紫金山森林资源清查资料,比较历年的森林面积和蓄积量,分析紫金山森林增长速度快慢的原因,并从汇总出的2006年各优势树种蓄积量数据中,采用生物量换算因子连续函数法等研究方法,核算出森林的最新固碳释氧量数据,突出自2004年大型环境综合整治以来,紫金山森林生态系统中植物地上部分固碳释氧的生态功能。结果表明:固碳量为176095.9t,释氧量为129641.2t,为今后紫金山植物栽植和配置、南京城市森林规划和建设提供参考。

The year to year forest areas and volumes in Zijin Mountain were compared based on forest resources inventory data to study the causes for different forest growth rate. The latest carbon sequestration and oxygen release of the forest in Zijin Mountain were quantified using methods such as biomass corrversion with functional continuum, based on the volume of each dominant species measured in 2006. This study tries to highlight the ecological functions of carbon sequestration and oxygen release by the above-ground parts of the forest ecosystem in Zijin Mountain since the large-scale integrated environmental management in 2004. It was suggested that the volume of carbon sequestration was 176,095.9 tons and oxygen release was 129,641.2 tons, providing a reference for future planting and plant configuration of Zijin Mountain, as well as for urban forest planning and construction of Nanjing.