腾冲市杉木林碳储量及碳密度估算分析  

Estimation of Carbon Stock and Carbon Density of Cunninghamia lanceolata Forest in Tengchong City

作　　者：范彩慧 段成波 龙德增 赵润华 陈汝曼 FAN Caihui;DUAN Chengbo;LONG Dezeng;ZHAO Runhua;CHEN Ruman(Tengchong Forestry and Grassland Technology Extension Station,Tengchong,Yunnan 679100,China;Tengchong Forestry and Grassland Bureau,Tengchong,Yunnan 679100,China)

机构地区：[1]腾冲市林业和草原技术推广站,云南腾冲679100 [2]腾冲市林业和草原局,云南腾冲679100

出　　处：《林业调查规划》2025年第2期44-48,共5页Forest Inventory and Planning

摘　　要：基于腾冲市2021年国家林草生态综合监测评价成果数据,采用生物量扩展因子法,对腾冲市杉木林碳储量及碳密度进行估算及分析。结果表明,腾冲市杉木林生物量为2742418.29 t,碳储量为1426057.51 t,平均碳密度33.37 t/hm^(2),其中,地类为乔木林地,优势树种为杉木,碳储量为1422266.43 t,占主导地位,平均碳密度49.13 t/hm^(2);中和镇碳储量最大,腾越街道平均碳密度49.18 t/hm^(2),与地类为乔木林地的杉木林平均碳密度相近。近熟林和成熟林的碳储量占腾冲市杉木林碳储量的61.48%,坡向对碳密度的影响不显著;腾冲市杉木林单位面积蓄积量为134.65 m^(3)/hm^(2),和顺镇单位面积蓄积量为319.28 m^(3)/hm^(2),但幼龄林的单位面积蓄积量偏小,仅为52.23 m^(3)/hm^(2)。杉木种子退化,林分密度过大,枯枝病严重是造成腾冲市杉木林碳密度较低的主要原因。通过良种选育、森林抚育、病害综合防治等措施,提高碳密度的潜力很大。Based on the national forest and grassland ecological comprehensive monitoring and evaluation data of Tengchong City in 2021,the biomass expansion factor(BEF)method was used to estimate and analyze the carbon stock and carbon density of Cunninghamia lanceolata forest.The results showed that the biomass of Cunninghamia lanceolata forest in Tengchong City was 2742418.29 t,the carbon stock was 1426057.51 t,and the average carbon density was 33.37 t/hm^(2).The dominant species was Cunninghamia lanceolata,with a carbon stock of 1422266.43 t,and the average carbon density was 49.13 t/hm^(2).Zhonghe Town had the largest carbon stock and Tengyue Sub-district had the largest carbon density of 49.18 t/hm^(2),which was similar to the average carbon density of Cunninghamia lanceolata arbor forest land.The carbon stock of near-mature and mature forests accounted for 61.48% of the carbon stock,and the effect of slope orientation on carbon density was not significant.The volume stock of Cunninghamia lanceolata forest in unit area was 134.65 m^(3)/hm^(2) for Tengchong City,319.28 m^(3)/hm^(2) for Heshun Town.However,the volume stock for young forests was as low as 52.23 m^(3)/hm^(2).Seed degradation,excessive stand density,and severe withering disease were the main reasons for the low carbon density.Therefore,there was great potential to improve carbon density through measures such as breeding of high-quality seeds,forest conservation,and comprehensive disease prevention and control.

关 键 词：杉木林 碳储量 碳密度 生物量 腾冲市 

分 类 号：S718.556[农业科学—林学] S758.58S791.27