中国国家森林公园碳储量及固碳速率的时空动态  

Spatial-temporal variations of carbon storage and carbon sequestration rate in China’s national forest parks

作　　者：李威 黄玫[2] 张远东[3] 顾峰雪[1] 巩贺 郭瑞[1] 钟秀丽[1] 严昌荣[1] LI Wei;HUANG Mei;ZHANG Yuan-dong;GU Feng-xue;GONG He;GUO Rui;ZHONG Xiu-li;YAN Chang-rong(Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences/Key Laboratory of Dryland Agriculture,Ministry of Agriculture,Beijing 100081,China;Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences/Key Laboratory of Ecosystem Network Observation and Modeling,Beijing 100101,China;Institute of Forest Ecology,Environment and Protection,Chinese Academy of Forestry/Key Laboratory of Forest Ecology and Environment,State Forestry Administration,Beijing 100091,China)

机构地区：[1]中国农业科学院农业环境与可持续发展研究所/农业农村部旱作节水农业重点实验室,北京100081 [2]中国科学院地理科学与资源研究所/生态系统观测与模拟重点实验室,北京100101 [3]中国林业科学研究院森林生态环境与保护研究所/国家林业和草原局森林生态环境重点实验室,北京100091

出　　处：《应用生态学报》2021年第3期799-809,共11页Chinese Journal of Applied Ecology

基　　金：科技基础资源调查项目(2019FY101303);中国农业科学院科技创新工程项目资助。

摘　　要：森林生态系统在调节气候变化和维持碳平衡中具有重要作用。国家森林公园是森林保护的主要载体,探明其碳储量和固碳速率的变化对于森林生态系统的固碳能力评估和可持续经营管理具有重要意义。本研究采用生态系统过程模型CEVSA2模型,模拟了1982—2017年中国881处国家森林公园的碳密度、碳储量和固碳速率的空间分布特征。结果表明:国家森林公园平均碳密度为255.18 t C·hm^(-2),高于中国森林生态系统平均碳密度。2017年,国家森林公园总碳储量为3.56 Pg C,占全国森林生态系统总碳储量的11.0%~12.2%。1982—2017年国家森林公园平均固碳速率达到0.45 t C·hm^(-2)·a^(-1),各地区国家森林公园固碳速率都在0.30 t C·hm^(-2)·a^(-1)以上。东北和西南地区国家森林公园的总碳储量最高。东北地区国家森林公园的土壤有机碳固碳速率最高,而华东和中南地区国家森林公园的植被碳固碳速率最高。国家森林公园面积占中国森林总面积的5.8%,在森林碳汇管理中占据着重要地位。准确评估国家森林公园的森林生长状况、固碳潜力和碳吸收特征,可为我国森林公园生态系统服务功能的总体评估提供借鉴和参考。Forests play an important role in regulating climate change and maintaining carbon balance.To explore the carbon storage and carbon sequestration rate of national forest parks is of great significance for carbon sequestration capacity assessment and sustainable forest management.A process-based ecosystem model(CEVSA2 model)was used to simulate the spatial distribution of carbon density,carbon storage and carbon sequestration rate of 881 national forest parks in China during 1982-2017.The results showed that the average carbon density of national forest parks was 255.18 t C·hm^(-2),being higher than the average carbon density of forest ecosystem in China.In 2017,the total carbon storage of national forest parks increased to 3.56 Pg C,accounting for 11.0%-12.2%of the total carbon storage in national forest ecosystems.During 1982-2017,the average carbon sequestration rate of national forest parks reached 0.45 t C·hm^(-2)·a^(-1),and the carbon sequestration rate of all national forest parks was above 0.30 t C·hm^(-2)·a^(-1).National forest parks in the northeast and southwest of China had the highest total carbon storage.The national forest parks in northeast of China had the highest soil organic carbon sequestration rate,while those in eastern China and central southern China had the highest biomass carbon sequestration rate.The area of national forest parks accounted for 5.8%of the total forest area of China,playing an important role in forest carbon sink management of China.Accurate assessment of the growth status,carbon sequestration potential and carbon absorption characteristics of national forest parks could provide reference for the comprehensive assessment of ecosystem service of forest parks in China.

关 键 词：国家森林公园 碳密度 碳储量 固碳速率 生态系统过程模型 

分 类 号：S718.5[农业科学—林学]