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.
Ying Yong Sheng Tai Xue Bao. 2021 Mar;32(3):799-809. doi: 10.13287/j.1001-9332.202103.015.
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, 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·a, and the carbon sequestration rate of all national forest parks was above 0.30 t C·hm·a. 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.
森林在调节气候变化和维持碳平衡方面发挥着重要作用。探索国家森林公园的碳储量和碳固存速率对于碳封存能力评估和可持续森林管理具有重要意义。本研究利用一个基于过程的生态系统模型（CEVSA2 模型）模拟了 1982-2017 年中国 881 个国家森林公园的碳密度、碳储量和碳固存速率的空间分布。结果表明，国家森林公园的平均碳密度为 255.18 t C·hm，高于中国森林生态系统的平均碳密度。2017 年，国家森林公园的总碳储量增加到 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，国家森林公园的平均碳固存速率达到 0.45 t C·hm·a，所有国家森林公园的碳固存速率均高于 0.30 t C·hm·a。中国东北和西南地区的国家森林公园总碳储量最高。中国东北的国家森林公园土壤有机碳固存速率最高，而中国东部和中南部的国家森林公园生物量碳固存速率最高。国家森林公园面积占中国森林总面积的 5.8%，在中国森林碳汇管理中发挥着重要作用。准确评估国家森林公园的生长状况、碳固存潜力和碳吸收特征，可为中国森林公园生态系统服务的综合评估提供参考。
