内蒙古大青山不同林龄华北落叶松人工林乔木层碳密度特征  

Carbon Density Characteristics of the Tree Layer in Larix Principis-Rupprechti Plantations of Different Ages in the Daqingshan Area of Inner Mongolia

作　　者：王云霓 李睿瑶 高佳光 福升 桑昊 霍凯宇 边鸿洋 WANG Yunni;LI Ruiyao;GAO Jiaguang;FU Sheng;SANG Hao;HUO Kaiyu;BIAN Hongyang(Inner Mongolia Academy of Forestry Sciences,Hohhot 010010,Inner Mongolia,China;Inner Mongolia Agricultural University,Hohhot 010018,Inner Mongolia,China)

机构地区：[1]内蒙古自治区林业科学研究院,呼和浩特宇010010 [2]内蒙古农业大学,呼和浩特010018

出　　处：《内蒙古林业调查设计》2024年第6期67-71,共5页Inner Mongolia Forestry Investigation and Design

基　　金：内蒙古自治区林业科学研究院科研能力提升“揭榜挂帅”项目(2024NLTS04)。

摘　　要：文章以内蒙古大青山国家级自然保护区不同林龄(17 a、30 a、46 a)的华北落叶松(Larix principisrupprechtii)人工林为研究对象,采用野外调查与室内分析的方法,对华北落叶松人工林乔木层碳密度及分配特征进行研究。结果表明:1)华北落叶松人工林乔木层碳密度为46 a(15.03 t/hm^(2))>30 a(13.65 t/hm^(2))>17 a(9.21 t/hm^(2)),碳密度随林龄的增加而逐年增加;2)17~30 a华北落叶松人工林乔木层碳密度显著增加,平均年增量为0.342 t/hm^(2),而30~46 a碳密度增势趋缓;3)不同林龄华北落叶松人工林碳密度均表现为树干的碳密度最大,说明树干是乔木层碳库的主要提供者。This study focuses on Larix principis-rupprechti plantations of different ages(17 years,30 years,and 46 years)in the Daqingshan National Nature Reserve,Inner Mongolia,employing field surveys and laboratory analyses to investigate the carbon density and distribution characteristics of the arboreal layer in these plantations.The results indicate that the carbon density of the arboreal layer in Larix principis-rupprechti plantations increases with age,with the highest at 46 years(15.03 t/hm^(2)),followed by 30 years(13.65 t/hm^(2)),and then 17 years(9.21 t/hm^(2));the carbon density of Larix principis-rupprechti plantations significantly increases from 17 to 30 years,with an average annual increment of 0.342 t/hm²,while the increase in carbon density slows down from 30 to 46 years;the carbon density in plantations of different ages is primarily contributed by the trunk,indicating that the trunk is the main provider of carbon storage in the arboreal layer.

关 键 词：人工林 华北落叶松 生物量 碳密度 

分 类 号：S718.5[农业科学—林学]