文献类型：期刊文献

英文题名：Cross-Scale Spatial Variability and Associations of Carbon Pools Provide Insight into Regulating Carbon Sequestration in Tropical Montane Rainforests

作者：Ding, Zhangqi[1,2] Mou, Zhijian[1,2,3] Li, Yanpeng[4] Wang, Jun[1,2] Donghai, Wu[1,2] Liang, Chao[5] Hui, Dafeng[6] Sardans, Jordi[7,8,9] Pe?uelas, Josep[7,8] Xu, Han[4] Liu, Zhanfeng[1,2]

第一作者：Ding, Zhangqi

机构：[1] Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; [2] South China National Botanical Garden, Guangzhou, 510650, China; [3] College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China; [4] Research Institute of Tropical Forestry, Chinese Academy of Forestry, Longdong, Guangzhou, 510520, China; [5] Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; [6] Department of Biological Sciences, Tennessee State University, Nashville, TN, 37209, United States; [7] CSIC, Global Ecology Unit CREAF-CSIC-UAB, Cerdanyola del Valles, Catalonia, 08193, Spain; [8] CREAF, Cerdanyola del Valles, Catalonia, 08193, Spain; [9] Nonlinear Analysis and Applied Mathematics [NAAM]-Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, P.O. Box 80257, Jeddah, 21589, Saudi Arabia

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20240007651)

语种：英文

外文关键词：Fractals - Lakes - Organic carbon - Tropics

摘要：The spatial distribution of plant, soil, and microbial carbon pools, along with their intricate interactions, presents a great challenge for the current carbon cycle research. However, it is not clear what are the characteristics of the spatial variability of these carbon pools, particularly their cross-scale relationships. We investigated the cross-scale spatial variability of microbial necromass carbon (MNC), soil organic carbon (SOC) and plant biomass (PB), as well as their correlation in a tropical montane rainforest using multifractal analysis. The results showed multifractal spatial variations of MNC, SOC, and PB, demonstrating their adherence to power-law scaling. MNC, especially low MNC, exhibited stronger spatial heterogeneity and weaker evenness compared with SOC and PB. The cross-scale correlation between MNC and SOC was stronger than their correlations at the measurement scale. Furthermore, the cross-scale spatial variability of MNC and SOC exhibited stronger and more stable correlations than those with PB. Additionally, our results suggest that when SOC and PB are both low, it is advisable for reforestations to potentiate MNC formation, whereas when both SOC and PB are high some thinning can be advisable to favour MNC formation. Thus, these results support the utilization of management measures such as reforestation or thinning as nature-based solutions to regulate carbon sequestration capacity of tropical forests by affecting the correlations among various carbon pools. ? 2023, The Authors. All rights reserved.