基于分树种Bookkeeping模型的1949—2021年中国造林植被固碳量估算  

Carbon Sequestration of Plantation Forest in China from 1949 to 2021:Based on Localized Bookkeeping Model

作　　者：麦劲 徐红枫 李志宣 蒋骊蕾 刘姗姗[1,3] 陈耀亮 MAI Jin;XU Hongfeng;LI Zhixuan;JIANG Lilei;LIU Shanshan;CHEN Yaoliang(National Demonstration Center for Experimental Geography Education,Fujian Normal University,Fuzhou 350117,China;Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education,Fujian Normal University,Fuzhou 350117,China;School of Geographical Sciences,School of Carbon Neutrality Future Technology,Fujian Normal University,Fuzhou 350117,China)

机构地区：[1]福建师范大学地理学国家级实验教学示范中心,福州350117 [2]福建师范大学湿润亚热带生态地理过程教育部重点实验室,福州350117 [3]福建师范大学地理科学学院、碳中和未来技术学院,福州350117

出　　处：《亚热带资源与环境学报》2025年第1期53-61,共9页Journal of Subtropical Resources and Environment

基　　金：国家重点研发计划专项(2021YFD2200401);国家自然科学基金面上项目(42277450)。

摘　　要：造林是当前缓解CO_(2)上升的有效途径之一,现有研究多基于模型和森林清查数据的方法估算中国森林固碳,基于造林统计数据的估算尚未见详细报道,以《中国林业统计年鉴》中的造林面积为基础数据,收集各个省份主要树种不同龄级碳密度,对Bookkeeping模型中碳储量曲线进行树种参数本地化,进而估算中国1949—2021年期间造林固碳及其变化规律。结果表明:1)近70 a中国造林的总固碳量为2.12×10^(15)~2.31×10^(15)g;2)防护林和用材林是主要的固碳来源,分别占总固碳43%和38%。地区之间造林导致的固碳以西南贡献最大(24%),中南其次(18%),东北最小(11%);3)固碳时期大致分为固碳速率较慢(1949—1980年,2.70×10^(12)g·a^(-1))、固碳速率较快(1981—2000年,21.34×10^(12)g·a^(-1))、固碳速率持续加快(2000年以来,84.30×10^(12)g·a^(-1))3个阶段。近70 a植树造林固碳对减少CO_(2)排放和实现“碳中和”目标具有重要的贡献。Forestation is one of the most effective methods for mitigating rising atmospheric CO_(2) levels.Existing research primarily relies on models and forest inventory data to estimate the carbon sequestration of China's forestation,while detailed assessments based on forestation statistical data remain limited.This study adopts the forestation area data from the“China Forestry Statistical Yearbook”as the foundational data,integrating carbon density of major tree species across different age classes from various provinces.By localizing tree species parameters within the Bookkeeping model s carbon stock curve,the carbon sink from afforestation in China from 1949 to 2021 and its changing trends was estimated.The results indicate that,(1)over the past 70 years,China's afforestation has sequestered a total of 2.12×10^(15)to 2.31×10^(15)g of carbon.(2)Protective forests and timber forests are the main sources of carbon sink,accounting for 43%and 38%of the total carbon sink,respectively.The southwest contributed the largest contribution to the carbon sink caused by afforestation between regions(24%),followed by the central and southern parts(18%),and the northeast(11%).(3)The periods of carbon sink can be broadly divided into three stages:a slow rate of carbon sink(1949—1980,2.70×10^(12)g·a^(-1)),a faster rate of carbon sink(1981—2000,21.34×10^(12)g·a^(-1)),and a continuously accelerating rate of carbon sink(since 2000,84.30×10^(12)g·a^(-1)).Over the past 70 years,afforestation has made a significant contribution to reducing CO_(2)emissions and achieving the“carbon neutrality”goal.

关 键 词：造林 龄级 植被碳密度 Bookkeeping模型 本地化 固碳 

分 类 号：S719[农业科学—林学]