龙岩市新罗区曹溪街道乔木林分碳储量估算分析

Estimation and Analysis of Carbon Stand of Arbor Forest Standin Caoxi Street, Silla District, Longyan City

该研究以2013、2018和2022年曹溪街道森林资源调查数据为基础,运用转换因子连续函数法对曹溪街道乔木林分碳储量及碳密度进行估算与分析,并对其碳储量和碳汇的经济价值进行估算,以期为提高其森林碳储量、林业碳汇发展提供决策依据。结果表明:2013—2022年曹溪街道乔木林分平均碳储量为53.23万t,平均碳密度62.08t/hm~2,高于福建省平均水平。其中,硬阔类树种碳储量占比最高,达83.56%,碳密度最大;中龄林碳储量占比最高,达42.26%,幼龄林到中龄林期间碳密度增长幅度最大。2013—2022年曹溪街道林分碳汇都为正值,平均碳汇19.14万tCO_(2)e,碳储量平均价值0.35亿元,碳汇平均价值0.034亿元。

Based on the survey data of forest resources in Caoxi Street in 2013,2018 and 2022,this paper uses the continuous function method of conversion factor to estimate and analyze the carbon stand carbon storage and carbon density of arbor trees in Caoxi Street,and estimates the economic value of carbon storage and carbon sink,in order to provide a decision-making basis for improving forest carbon storage and forestry carbon sink development.The results showed that the average carbon storage of arbor stands in Caoxi Street from 2013 to 2022 was 532,300 tons,and the average carbon density was 62.08 tons/hm2,which was higher than the average level of Fujian Province.Among them,the carbon storage of hard and broad tree species accounted for the highest proportion,reaching 83.56%,and the carbon density was the largest.The proportion of carbon storage in middle-aged forests was the highest,reaching 42.26%,and the carbon density increased the most during the period from young forests to medium-aged forests.From 2013 to 2022,the forest stand carbon sink in Caoxi Street was positive,with an average carbon sink of 191,400 tCO 2e,an average value of carbon storage of 35 million yuan,and an average value of 003.4 million yuan.