文献类型：期刊文献

英文题名：Contributions of plant- and microbial-derived residuals to mangrove soil carbon stocks: Implications for blue carbon sequestration

作者：Qin, Guoming[1,2,3] He, Weijun[4] Sanders, Christian J.[5] Zhang, Jingfan[1,2,3] Zhou, Jinge[1,2,3] Wu, Jingtao[1,2] Lu, Zhe[1,2] Yu, Mengxiao[6] Li, Yingwen[1,2] Li, Yongxing[1,2] Lambers, Hans[7] Li, Zhian[1,2] Wang, Faming[1,2,8]

第一作者：Qin, Guoming

通信作者：Wang, FM[1];Wang, FM[2];Wang, FM[3]

机构：[1]Chinese Acad Scienc, Key Lab Vegetat Restorat & Management Degraded Eco, CAS Engn Lab Ecol Restorat Isl & Coastal Ecosyst, Xiaoliang Res Stn Trop Coastal Ecosyst,South China, Guangzhou, Peoples R China;[2]Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou, Peoples R China;[3]Univ Chinese Acad Sci, Beijing, Peoples R China;[4]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou, Peoples R China;[5]Southern Cross Univ, Natl Marine Sci Ctr, Coffs Harbour, NSW, Australia;[6]Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Eco, South China Bot Garden, Guangzhou, Peoples R China;[7]Univ Western Australia, Sch Biol Sci, Perth, WA, Australia;[8]Southern Marine Sci & Engn Guangdong Lab, Zhuhai, Peoples R China

年份：2024

外文期刊名：FUNCTIONAL ECOLOGY

收录：;Scopus(收录号：2-s2.0-85181250441);WOS:【SCI-EXPANDED(收录号:WOS:001137877600001)】；

基金：This study was supported by the Science and Technology Planning Project of Guangdong Province (2021B1212110004), National Key R&D Program of China (2023YFE0113103, 2023YFF1304504, 2021YFC3100400), Key-Field Research and Development Program of Guangdong Province (2022B1111230001), Guangdong Basic and Applied Basic Research Foundation (2021B1515020011), ANSO Collaborative Research (ANSO-CR-KP-2022-11), Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) (SML2023SP218), CAS Project for Young Scientists in Basic Research (YSBR-037), Youth Innovation Promotion Association (2021347) and National Natural Science Foundation of China (U2106209, 32011530164, 32171594, 32301398, 42007230). We would like to express our gratitude to Yongni He, Chongzhen Yuan and Shijun Xie for their assistance during the sampling process, as well as Yiren Zhu and Xinan Zhang for their help with the lignin phenols measurements.

语种：英文

外文关键词：amino sugars; blue carbon; carbon sequestration; lignin phenols; mangrove restoration; microbial necromass; soil organic carbon

摘要：Coastal blue carbon ecosystems, particularly mangroves, are becoming increasingly recognised for their importance in mitigating climate change. Still, the specific patterns and drivers of plant lignin components and microbial necromass accumulation in these ecosystems are unclear.In response, we carried out a study along a 40-year mangrove restoration chronosequence, measuring lignin phenol and amino sugar concentrations in soil profiles (0-100 cm) as indicators of plant-based and microbial-derived residues, respectively.Our results showed that restoration significantly increased plant lignin phenol and amino sugar concentrations, with mature mangroves having much higher concentrations than tidal flats. During restoration, the fungal necromass was greater than the bacterial necromass. The factors influencing the lignin phenols were tree biomass, total nitrogen, pH and salinity, while those influencing the formation of amino sugars were total biomass, soil C: N ratio and pH. While the amino sugars decreased, the lignin phenols increased with the content of SOC, providing evidence of the important role lignin phenol components play in the formation of SOC in mangrove.Synthesis: By separating soil carbon into plant-based and microbial-derived components, our results demonstrate that the carbon stock in mangrove sediments is vulnerable to disturbances and that changes from anaerobic to aerobic conditions cause significant carbon mineralisation. The precise identification of soil carbon sources in blue carbon ecosystems could aid in elucidating the mechanisms of soil carbon sequestration and their responses to environmental changes.Read the free Plain Language Summary for this article on the Journal blog. 滨湿?红树?缓气.植微残壤?红树恢晰.酚氨糖植微?红树恢壤贡offspring.?红树恢著壤酚氨糖?菌残累著菌.酚树,壤氮,pH 盐?壤微,壤氮pH 氨糖offspring.?红树恢?植占呈趋?微呈趋.壤植微?红树壤?壤厌氧氧换固红树壤.?蓝壤壤固. Read the free Plain Language Summary for this article on the Journal blog.image