文献类型：期刊文献

中文题名：基于CBM-CFS3 模型的不同采伐情景下马尾松人工林生态系统碳动态

英文题名：Simulated Carbon Dynamics of Pinus massoniana Plantation Ecosystems under Different Harvesting Scenarios Using the CBM-CFS3 Model

作者：Sufeng, Zhu[1] Mengmeng, Gou[1,2] Haiping, Zhao[1] Changfu, Liu[1,2] Zunji, Jian[1,2] Jianhua, Zhu[1,2] Wenfa, Xiao[1,2]

第一作者：Sufeng, Zhu

机构：[1] Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, 100091, China; [2] Three Gorges Reservoir Forest Ecosystem Observation and Research Station, Hubei Province, Zigui, 443600, China

年份：2025

卷号：61

期号：12

起止页码：24-33

外文期刊名：Linye Kexue/Scientia Silvae Sinicae

收录：EI(收录号：20260620033256)

语种：中文

外文关键词：Carbon - Carbon capture - Carbon capture and storage - Carbon capture and utilization - Carbon cycle - Carbon Economy - Carbon sequestration - Dynamics - Forestry - Harvesting - Lakes - Organic carbon - Timber - Tropics - Vegetation

摘要：【Objective】This study aims to clarify the dynamics of carbon pool changes and carbon balance responses of plantations under harvesting disturbances, so as to provide guidance for scientific management of the dual enhancement of timber production and carbon sink functions of plantations. 【Method】Pinus massoniana plantations in subtropical China were taken as the object. The CBM-CFS3 model improved by parameter localization was used to simulate differences in carbon pool components and future carbon sink dynamics over the next 41 years under four harvesting intensities (0%, 10%, 25% and 40%). 【Result】The Richards equation provided a good fit for various types of P. massoniana plantations (R2≥0.57, MAE≤15.54 m3?hm?2, RMSE≤ 17.50 m3?hm?2), and was able to effectively characterize stand growth patterns of P. massoniana across the region. In 2018, the average ecosystem carbon density was 122.97 Mg?hm?2, with contributions from vegetation layer (34.79 Mg?hm?2), dead organic matter (32.00 Mg?hm?2), and soil (56.18 Mg?hm?2). Within the vegetation carbon pool, the order of carbon density was stem > root > branch > foliage. Under management scenarios with a harvesting cycle of 15-year, the maximum carbon density and the maximum sequestration rate achieved by P. massoniana plantations between 2019 and 2060 were as the follow: 10% harvesting intensity > no harvesting > 25% harvesting intensity > 40% harvesting intensity. Specifically, under the 15-year harvesting cycle with 10% harvesting intensity scenario, the maximum carbon density reached 194.73 Mg?hm?2, and a maximum sequestration rate reached 2.30 Mg?hm?2a?1. By 2060, the total carbon stock of P. massoniana plantations in China could reach 494.17 Tg, including 217.94 Tg in biomass. 【Conclusion】The CBM-CFS3 model improved by parameter localization can effectively simulate distributions of carbon pools and dynamics of carbon density in P. massoniana plantations. Under the scenario of 10% harvesting intensity, P. massoniana plantations have the greatest carbon sequestration potential, balancing timber production with carbon sink function. It is recommended to adopt moderate harvesting intensity and cycle in plantation management to promote the rapid renewal of aging stands, thereby ensuring high timber yield while enhancing carbon sequestration capacity. ? 2025, Chinese Society of Forestry. All rights reserved.