Carbon accumulation in the red clay layer of the subsoil in a major river delta: Contribution of secondary carbonate

doi:10.1016/j.catena.2019.104391

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	Carbon accumulation in the red clay layer of the subsoil in a major river delta: Contribution of secondary carbonate
	Li, Y; Fu, CC ; Zeng, L ; Zhou, Q ; Zhang, HB; Tu, C; Wei, J; Li, LZ; Luo, YM
发表期刊	CATENA
ISSN	0341-8162
	2020-03
卷号	186 页码:104391
关键词	Carbon stabilization Secondary carbonate Clay layer Subsoil Yellow River
研究领域	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
DOI	10.1016/j.catena.2019.104391
产权排序	[Li, Yuan; Fu, Chuancheng; Zhou, Qian; Tu, Chen; Wei, Jing; Li, Lianzhen; Luo, Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Li, Yuan; Tu, Chen; Wei, Jing; Li, Lianzhen; Luo, Yongming] Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China; [Luo, Yongming] Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China; [Zeng, Lin] Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China; [Zhang, Haibo] Zhejiang Agr & Forestry Univ, Sch Environm & Resource Sci, Key Lab Soil Contaminat Bioremediat Zhejiang Prov, Hangzhou 311300, Peoples R China
通讯作者	Luo, Yongming([email protected])
作者部门	海岸带环境过程实验室
英文摘要	Understanding C formation and budgets in soils of large river deltas is necessary in studying the global C cycle because deltas are important interfaces between continents and oceans for material fluxes. Soil organic carbon (SOC) and soil inorganic carbon (SIC) were assessed at different soil depths in wetlands and farmland of the Yellow River Delta. SOC content decreased by 54% in the topsoil after converting wetland to farmland and there was little soil inorganic carbon (SIC enrichment). However, the contents and stocks of SOC and SIC in the subsoil were significantly enhanced in the red clay layer (RCL) in both land use types. The RCL also showed high accumulation rates of SIC (197 +/- 95 g C m(-2) yr(-1)), highlighting its importance in carbon sequestration in this large estuary. A negative correlation between SIC and delta C-13(SIC) throughout the dataset and more negative values in the RCL indicate a larger contribution of secondary carbonate under C3 vegetation in the RCL. A positive correlation between SIC and SOC suggests that an enhancement of SOC may lead to an increase in SIC, especially in the subsoil YSL-RCL sequence with its relatively low SOC content. The RCL formed in the fluvial-deltaic sedimentary system with both higher carbonate content and stronger weathering intensity indicates that adsorption and precipitation of atmospheric derived carbonate on fine-grained suspended particulates may be important factors in carbonate accumulation.
文章类型	Article
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41701263, 41807418, 41501522] ; Yantai Science and Technology Project [2017ZH091] ; National Key Research and Development Program of China [2018YFC1801001] ; Sino-German Joint Project on Marine and Polar Cooperation (FINGBOYEL)
收录类别	SCI
语种	英语
关键词[WOS]	SOIL INORGANIC CARBON ; ORGANIC-CARBON ; CHINESE LOESS ; SEQUESTRATION ; OCEAN ; CLASSIFICATION ; FERTILIZATION ; GEOCHEMISTRY ; ECOSYSTEMS ; ESTUARIES
研究领域[WOS]	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:000509817000010
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24744
专题	中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China; 3.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China; 4.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China; 5.Zhejiang Agr & Forestry Univ, Sch Environm & Resource Sci, Key Lab Soil Contaminat Bioremediat Zhejiang Prov, Hangzhou 311300, Peoples R China
推荐引用方式 GB/T 7714	Li, Y,Fu, CC,Zeng, L,et al. Carbon accumulation in the red clay layer of the subsoil in a major river delta: Contribution of secondary carbonate[J]. CATENA,2020,186:104391.
APA	Li, Y.,Fu, CC.,Zeng, L.,Zhou, Q.,Zhang, HB.,...&Luo, YM.(2020).Carbon accumulation in the red clay layer of the subsoil in a major river delta: Contribution of secondary carbonate.CATENA,186,104391.
MLA	Li, Y,et al."Carbon accumulation in the red clay layer of the subsoil in a major river delta: Contribution of secondary carbonate".CATENA 186(2020):104391.

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