不同林龄阶段杉木林碳密度与碳储量模型研究——以浙江遂昌为例  

Carbon Density Analysis and Model Structuring of Chinese Fir Forest:A Case Study of Suichang,Zhejiang Province

作　　者：龚笑飞 潘江炎 翁振明 李烨 黄红丹 叶姝儿 姚良锦 王志高 GONG Xiaofei;PAN Jiangyan;WENG Zhenming;LI Ye;HUANG Hongdan;YE Shu'er;YAO Liangjin;WANG Zhigao(Suichang county ecological forestry development center,Zhejiang,Suichang county,323399;Zhejiang Forest Academy,Zhejiang,Hangzhou,310023)

机构地区：[1]遂昌县生态林业发展中心,浙江遂昌323399 [2]浙江省林业科学研究院,浙江杭州310023

出　　处：《浙江林业科技》2025年第1期48-52,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：浙江省“尖兵”“领雁”研发攻关计划资助(2022C02053)。

摘　　要：为探究杉木Cunninghamia lanceolata人工林固碳增汇经营技术,本文以遂昌县杉木人工林为研究对象,研究了不同林龄阶段、不同密度林分乔木层不同器官的含碳率和碳密度,并构建了不同器官的碳储量预测模型。结果表明,杉木林的平均含碳率为50.15%,其中树冠的含碳率最高(51.59%);25年生杉木林的平均含碳率显著低于32年生和47年生杉木林的平均含碳率,林分密度对含碳率的影响不显著。杉木林平均碳密度随林龄增加而增加,林分密度对碳密度的影响体现在林龄较大的林分,中等密度等级林分的树冠和树干碳密度均最高。构建的林分、树干、树冠和树根碳储量模型,R2均在0.9以上,模型拟合效果较好。本研究表明适当的经营密度有助于提高杉木人工林碳储量,提升碳汇能力。To explore the carbon sequestration and carbon sink enhancement management techniques of Chinese fir plantation,the carbon content and carbon density of different organs in different age stages and different densities of Chinese fir plantation in Suichang County were studied,and the carbon storage prediction models of different organs were also constructed.Results showed that the average carbon content of Chinese fir forests was 50.15%,with the crown having the highest carbon content(51.59%).The carbon content in 25-year-old forests was significantly lower than in 32-yearold and 47-year-old stands,whereas stand density had no significant effect on carbon content.Average carbon density increased with stand age,while the effects of stand density on carbon density were primarily observed in older forests.Notably,medium density stands exhibited the highest carbon density in both the crown and trunk.The constructed carbon storage models for entire stands,trunks,crowns,and roots achieved R2 values above 0.9,indicating excellent model reliability.Our results showed that appropriate management density can help increase the carbon storage of Chinese fir plantation and enhance their carbon sink capacity.

关 键 词：杉木人工林 含碳率 碳密度 碳储量模型 

分 类 号：S791.27[农业科学—林木遗传育种]