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

	The accumulation and carbon sequestration potential of biogenic silica in coastal salt marshes: Implications for relative sea-level rise
	Zhao, Xiangwei 1,2; Zhang, Xiaodong 1,2,17; Song, Zhaoliang 1,2,3,17; Van Zwieten, Lukas 4; Ran, Xiangbin 5; Pu, Yulin 6; Sun, Jun 7,8; Li, Qiang 1,2; Wu, Lele1,2 ; Yang, Xiaomin 9; Wei, Yuqiu 10; Li, Zimin 11,12; Liu, Shuyan 13; Song, Alin 14; Sun, Xiaole 15; Liu, Cong-Qiang 1,2,3; Wang, Hailong 16
	2024-02-01
发表期刊	CATENA
ISSN	0341-8162
卷号	235 页码:12
通讯作者	Zhang, Xiaodong(xiaodongzhang521@tju.edu.cn) ; Song, Zhaoliang(zhaoliang.song@tju.edu.cn)
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.
关键词	Blue carbon Biogenic silica Carbon sequestration Biogeochemical silicon cycle Sea-level rise Coastal salt marsh
DOI	10.1016/j.catena.2023.107683
收录类别	SCI
语种	英语
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研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:001118499000001
出版者	ELSEVIER
WOS关键词	PHYTOLITH-OCCLUDED CARBON ; LAND-USE CHANGE ; DISSOLUTION KINETICS ; RICE-STRAW ; IMPACT ; SALINITY ; CHINA ; SOILS ; OCEAN ; CYCLE
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/184252
专题	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, Inst Surface Earth Syst Sci, Sch Earth Syst Sci, Tianjin, Peoples R China 2.Tianjin Univ, Tianjin Key Lab Earth Crit Zone Sci & Sustainable, Tianjin, Peoples R China 3.Haihe Lab Sustainable Chem Transformat, Tianjin, Peoples R China 4.Wollongbar Primary Ind Inst, NSW Dept Primary Ind, Wollongbar, Australia 5.Minist Nat Resources, Inst Oceanog 1, Res Ctr Marine Ecol, Qingdao, Peoples R China 6.Sichuan Agr Univ, Coll Resource Sci, Chengdu, Peoples R China 7.China Univ Geosci, Inst Adv Marine Res, Guangzhou, Peoples R China 8.China Univ Geosci Wuhan, Coll Marine Sci & Technol, Wuhan, Peoples R China 9.Guizhou Univ, Coll Resources & Environm Engn, Key Lab Karst Georesources & Environm, Minist Educ, Guiyang, Peoples R China 10.Chinese Acad Sci, Yellow Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab Sustainable Dev Marine Fisheries, Qingdao 266071, Peoples R China 11.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 12.Univ Catholique Louvain UCLouvain, Earth & Life Inst, Soil Sci, Croix Sud 2,L7-05-10, B-1348 Louvain La Neuve, Belgium 13.Natl Nat Reserve Management Ctr Liujiang Basin Geo, Qinhuangdao, Peoples R China 14.Chinese Acad Agr Sci, Key Lab Plant Nutr & Fertilizer, Minist Agr, Inst Agr Resources & Reg Planning, Beijing, Peoples R China 15.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao, Peoples R China 16.Foshan Univ, Sch Environm & Chem Engn, Foshan, Peoples R China 17.Tianjin Univ, Sch Earth Syst Sci, 92 Weijin Rd, Tianjin 300072, 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.