The roles of seagrass litter decomposition in determining blue carbon sink capacity

doi:10.1002/lno.12563

	The roles of seagrass litter decomposition in determining blue carbon sink capacity
	Suonan, Zhaxi 1; Kim, Seung Hyeon 1; Yue, Shidong2 ; Jo, Eunhye 1; Zhang, Fei 1; Kim, Hyegwang 1; Qin, Le-Zheng 1,3; Cha, Jaeho 4; Zhou, Yi2 ; Lee, Kun-Seop 1
	2024-04-08
发表期刊	LIMNOLOGY AND OCEANOGRAPHY
ISSN	0024-3590
页码	14
通讯作者	Lee, Kun-Seop(klee@pusan.ac.kr)
摘要	Seagrass litter is a crucial autochthonous source of sediment organic carbon (Corg) that contributes to Corg storage in coastal ecosystems. However, our understanding of seagrass litter decomposition effects on sediment Corg sequestration and the factors influencing the capacity for autochthonous carbon sequestration remains limited. We investigated Zostera marina litter decomposition dynamics in eelgrass meadows along the Korean coast by monitoring changes in the remaining litter mass and autochthonous Corg during the decomposition process. We used a double-component exponential decay models to characterize the decomposition dynamics and estimate the autochthonous Corg remaining. We also identified potential factors affecting litter decay and Corg accumulation in sediments by examining site-specific physicochemical properties. Our findings revealed that double-component models effectively characterized litter decomposition dynamics and indicated greater preservation of litter-derived slowly degrading Corg in sediments. The reduced decomposition of litter materials owing to low oxygen availability in the muddy sediments led to greater retention of litter mass and litter-derived Corg in sediments. The anoxic conditions of below-ground litterbags, compared with above-ground litterbags, could be alleviated by the oxygen transport through fresh Z. marina roots, thereby potentially stimulating the microbial decomposition of Z. marina below-ground litter materials at these sites. Our findings highlight the importance of understanding litter decomposition dynamics to accurately assess the carbon sink capacity of seagrass meadows, and demonstrate that physicochemical properties can influence seagrass litter decomposition.
DOI	10.1002/lno.12563
收录类别	SCI
语种	英语
资助项目	National Research Foundation of Korea (NRF)[NRF-2019R1A2C1090641] ; National Research Foundation of Korea (NRF)[NRF-2021R1I1A1A01049507] ; National Research Foundation of Korea (NRF) - Ministry of Education[KIMST-20220559] ; Ministry of Oceans and Fisheries
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:001198107100001
出版者	WILEY
WOS关键词	ORGANIC-MATTER ; SEDIMENTS ; IMPACT ; ACCUMULATION ; DISSOLUTION ; MANGROVE ; DYNAMICS ; RATES
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/185065
专题	海洋生态与环境科学重点实验室
通讯作者	Lee, Kun-Seop
作者单位	1.Pusan Natl Univ, Dept Biol Sci, Busan, South Korea 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Hainan Univ, Coll Marine Sci, Haikou, Peoples R China 4.Pusan Natl Univ, Dept Microbiol, Busan, South Korea
推荐引用方式 GB/T 7714	Suonan, Zhaxi,Kim, Seung Hyeon,Yue, Shidong,et al. The roles of seagrass litter decomposition in determining blue carbon sink capacity[J]. LIMNOLOGY AND OCEANOGRAPHY,2024:14.
APA	Suonan, Zhaxi.,Kim, Seung Hyeon.,Yue, Shidong.,Jo, Eunhye.,Zhang, Fei.,...&Lee, Kun-Seop.(2024).The roles of seagrass litter decomposition in determining blue carbon sink capacity.LIMNOLOGY AND OCEANOGRAPHY,14.
MLA	Suonan, Zhaxi,et al."The roles of seagrass litter decomposition in determining blue carbon sink capacity".LIMNOLOGY AND OCEANOGRAPHY (2024):14.