The accumulation and carbon sequestration potential of biogenic silica in coastal salt marshes: Implications for relative sea-level rise

doi:10.1016/j.catena.2023.107683

CORC > 海洋研究所 > 中国科学院海洋研究所 > 深海极端环境与生命过程研究中心

	The accumulation and carbon sequestration potential of biogenic silica in coastal salt marshes: Implications for relative sea-level rise
	Zhao, Xiangwei 10,11; Zhang, Xiaodong 1,10,11; Song, Zhaoliang 1,10,11,12; Van Zwieten, Lukas 13; Ran, Xiangbin 14; Pu, Yulin 15; Sun, Jun 16,17; Li, Qiang 10,11; Wu, Lele 10,11; Yang, Xiaomin 2
刊名	CATENA
	2024-02-01
卷号	235 页码:12
关键词	Blue carbon Biogenic silica Carbon sequestration Biogeochemical silicon cycle Sea-level rise Coastal salt marsh
ISSN号	0341-8162
DOI	10.1016/j.catena.2023.107683
通讯作者	Zhang, Xiaodong(xiaodongzhang521@tju.edu.cn) ; Song, Zhaoliang(zhaoliang.song@tju.edu.cn)
英文摘要	The fate of soil biogenic silica (BSi) in coastal salt marshes is of global importance because of its role in providing both available silicon (Si) for the growth of plants and diatoms and in sequestering carbon (C) (blue C) in soils and sediments. However, the accumulation of BSi and BSi-occluded C (BSiOC) under different vegetation habitats in coastal ecosystems, particularly in response to relative sea-level rise (RSLR), remains poorly understood. Here we established a paired waterlogging-control system and collected the soil samples under both waterlogged and non-waterlogged conditions from three vegetation habitats (single Phragmites australis, a mixture of P. australis and Suaeda salsa, and single S. salsa) corresponding to a gradient of distance from the coastline in three independent salt marshes. Our findings indicated that RSLR decreased average BSi content, especially in the 0-20 cm soil layer of the single P. australis and the mixed P. australis and S. salsa community. Although RSLR increased soil organic C (SOC) content, it generally decreased soil BSiOC content and its contribution to SOC. Consequently, RSLR resulted in lower soil BSi and BSiOC densities, particularly in the salt marsh dominated by the Si accumulator P. australis. Here, BSi and BSiOC densities at depths of 0-80 cm decreased by an average of 19% and 18% following waterlogging, respectively. The BSi pool was dominated by phytoliths in nonwaterlogged soils, while both diatoms and phytoliths were present in soils subjected to RSLR. Soil physicochemical properties including SOC, electrical conductivity and dissolved Si were influenced by RSLR. These factors, along with erosion were suggested as key influencers for BSi and its C sequestration in coastal salt marshes. Our results provide a scientific basis for elucidating biogeochemical Si cycles and predicting changes in BSiOC sequestration to optimize its storage.
资助项目	National Natural Science Foundation of China[42225101] ; National Natural Science Foundation of China[41930862] ; National Natural Science Foundation of China[42141014] ; National Natural Science Foundation of China[42293262] ; Haihe Laboratory of Sustainable Chemical Transformations
WOS关键词	PHYTOLITH-OCCLUDED CARBON ; LAND-USE CHANGE ; DISSOLUTION KINETICS ; RICE-STRAW ; IMPACT ; SALINITY ; CHINA ; SOILS ; OCEAN ; CYCLE
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001118499000001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/184251]
专题	海洋研究所_深海极端环境与生命过程研究中心
通讯作者	Zhang, Xiaodong; Song, Zhaoliang
作者单位	1.Tianjin Univ, Sch Earth Syst Sci, 92 Weijin Rd, Tianjin 300072, Peoples R China 2.Guizhou Univ, Coll Resources & Environm Engn, Key Lab Karst Georesources & Environm, Minist Educ, Guiyang, Peoples R China 3.Chinese Acad Sci, Yellow Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab Sustainable Dev Marine Fisheries, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 5.Univ Catholique Louvain UCLouvain, Earth & Life Inst, Soil Sci, Croix Sud 2,L7-05-10, B-1348 Louvain La Neuve, Belgium 6.Natl Nat Reserve Management Ctr Liujiang Basin Geo, Qinhuangdao, Peoples R China 7.Chinese Acad Agr Sci, Key Lab Plant Nutr & Fertilizer, Minist Agr, Inst Agr Resources & Reg Planning, Beijing, Peoples R China 8.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao, Peoples R China 9.Foshan Univ, Sch Environm & Chem Engn, Foshan, Peoples R China 10.Tianjin Univ, Inst Surface Earth Syst Sci, Sch Earth Syst Sci, Tianjin, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xiangwei,Zhang, Xiaodong,Song, Zhaoliang,et al. The accumulation and carbon sequestration potential of biogenic silica in coastal salt marshes: Implications for relative sea-level rise[J]. CATENA,2024,235:12.
APA	Zhao, Xiangwei.,Zhang, Xiaodong.,Song, Zhaoliang.,Van Zwieten, Lukas.,Ran, Xiangbin.,...&Wang, Hailong.(2024).The accumulation and carbon sequestration potential of biogenic silica in coastal salt marshes: Implications for relative sea-level rise.CATENA,235,12.
MLA	Zhao, Xiangwei,et al."The accumulation and carbon sequestration potential of biogenic silica in coastal salt marshes: Implications for relative sea-level rise".CATENA 235(2024):12.