Multiple methods reveal the carbon stock potential of young reforested mangroves in Quanzhou Bay Nature Reserve, China

作者：Yi‐Jia Shih, Kai Liu, Shu-Chiang Huang, Yi‐Ting Chang, Fenfen Ji, Chunxi Cao, Mouxin Ye, Yimin Li, Yi-Hua Jin, Yiyi Yao · 发表于：Ecological Indicators · 年份：2025 · DOI：10.1016/j.ecolind.2025.114126 · 被引用次数：2 · 研究领域：Coastal wetland ecosystem dynamics、Oil Palm Production and Sustainability、Plant and Fungal Species Descriptions

Mangrove reforestation has emerged as a critical component in blue carbon, with its carbon sequestration potential receiving increasing attention. However, most existing studies have focused on mature mangrove stands and adopted generalized assessment approaches, often ignoring the dynamics of plant growth, thereby raising concerns about the accuracy and reliability of carbon sequestration estimations. In this study, a site-based was assessed in a juvenile mangrove reforestation experimental area within the Quanzhou Bay Estuarine Wetland Natural Reserve from December 2022 to 2024, using three complementary models to evaluate early-stage carbon accumulation. Model I applied species-specific allometric equations suitable for saplings (basal diameter < 4 cm); Model II employed general equations commonly used for estimating biomass in more mature stands (DBH ≥ 4 cm); and Model III assessed vegetative expansion using NDVI-based remote sensing. The results revealed the cumulative carbon stock ranging from 45.34 to 158.84 t C, corresponding to a CO 2 sequestration potential of 166.25 to 582.41 t CO 2 . Moreover, based on biomass increments, annual carbon sequestration rates were calculated for five species and two reforestation strategies (mixed vs. monoculture forests). Under Model I, sequestration rates increased from 9.58 to 24.74 t C yr −1 in mixed forests and from 3.73 to 7.52 t C yr −1 in monocultures. Model II produced consistently higher estimates, with mixed forests rising ...