干旱区生态环境知识资源中心(Arid): Provenance of Inorganic Carbon Sinks in Closed Basins

Arid

DOI	10.1029/2021WR030270
	Provenance of Inorganic Carbon Sinks in Closed Basins
	Li, Yu; Hao, Lu; Han, Qin; Zhang, Yuxin; Peng, Simin; Zhang, Xinzhong
通讯作者	Li, Y
来源期刊	WATER RESOURCES RESEARCH
ISSN	0043-1397
EISSN	1944-7973
出版年	2022
卷号	58 期号:3
英文摘要	Much dissolved inorganic carbon (DIC) may exist in lacustrine carbonates in the terminal lakes of closed basins in arid areas, and inorganic carbon sinks in arid regions are an important hypothesis of global carbon cycle research in recent years. Previous studies have made significant progress in estimating the inorganic carbon content. However, the source of inorganic carbon sinks remains unclear. Here, we choose four typical arid closed basins in North China to investigate the provenance of inorganic carbon sinks. The results show that CO2 absorbed by saline-alkaline soil is the main source of groundwater DIC in the study area, with a contribution rate of approximately 50%. Forty-three groundwater radiocarbon ages from arid closed basins indicate that the DIC in groundwater is transported along the direction of water flow and deposited in terminal lakes, forming inorganic carbon sinks. Our study suggests that the total inorganic carbon contents of Zhuye Lake, Yanchi Lake, Huahai Lake, and Qinghai Lake in the Holocene are 0.318 Pg, 0.003 Pg, 0.160 Pg, and 3.289 Pg, respectively. The results demonstrate that inorganic carbon sinks are much larger than lake organic carbon storage, thereby serving as an important carbon cycle factor in arid regions.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000834099100036
WOS关键词	SHULE RIVER-BASIN ; GROUNDWATER RECHARGE ; HYDROGEOCHEMICAL EVOLUTION ; NORTHWEST CHINA ; TIBETAN PLATEAU ; RESIDENCE TIME ; NET ECOSYSTEM ; CO2 EXCHANGE ; DESERT ; WATER
WOS类目	Environmental Sciences ; Limnology ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394894
推荐引用方式 GB/T 7714	Li, Yu,Hao, Lu,Han, Qin,et al. Provenance of Inorganic Carbon Sinks in Closed Basins[J],2022,58(3).
APA	Li, Yu,Hao, Lu,Han, Qin,Zhang, Yuxin,Peng, Simin,&Zhang, Xinzhong.(2022).Provenance of Inorganic Carbon Sinks in Closed Basins.WATER RESOURCES RESEARCH,58(3).
MLA	Li, Yu,et al."Provenance of Inorganic Carbon Sinks in Closed Basins".WATER RESOURCES RESEARCH 58.3(2022).