干旱区生态环境知识资源中心(Arid): Changes in soil carbon sequestration and emission in different succession stages of biological soil crusts in a sand-binding area

Arid

DOI	10.1186/s13021-021-00190-7
	Changes in soil carbon sequestration and emission in different succession stages of biological soil crusts in a sand-binding area
	Wang, Bo; Liu, Jing; Zhang, Xin; Wang, Chenglong
通讯作者	Liu, J (corresponding author), Inner Mongolia Agr Univ, Coll Desert Control Sci & Engn, Hohhot 010018, Peoples R China.
来源期刊	CARBON BALANCE AND MANAGEMENT
ISSN	1750-0680
出版年	2021
卷号	16 期号:1
英文摘要	Background We investigated the spatio-temporal dynamics of soil carbon dioxide (CO2)- and soil methane (CH4)-flux during biological soil crust (BSCs) deposition in a sand-binding area in the eastern Chinese Hobq Desert. The trends in soil organic carbon (C) content and density were analyzed during this process. The sampling sites comprised a mobile dune (control) and those with algal, lichen, and moss crust-fixed sands. The desert soil CO2- and CH4-flux, temperature, and water content were measured from May to October in 2017 and 2018. Simultaneously, organic C content and density were measured and analyzed by stratification. Results The spatio-temporal variation in desert soil CO2-flux was apparent. The average CO2- fluxes in the control, algal, lichen, and moss sites were 1.67, 2.61, 5.83, and 6.84 mmol m(-2) h(-1), respectively, during the growing season, and the average CH4-fluxes in the four sites were - 1.13, - 1.67, - 3.66, and - 3.77 mu mol m(-2) h(-1), respectively. Soil temperature was significantly positively correlated with CO2-flux but could not influence CH4 absorption, and C flux had minimal correlation with soil water content. The soil total organic C density at all sites was significantly different and decreased as follows: moss > lichen > algal > control; moreover, it decreased with soil depth at all sites. The accumulation of desert soil organic C could enhance soil C emissions. Conclusion In a semi-arid desert, artificial planting could promote sand fixation and BSCs succession; therefore, increasing the C storage capacity of desert soils and decreasing soil C emissions could alter the C cycle pattern in desert ecosystems. Soil temperature is the major factor controlling desert soil CO2 flux and vegetation restoration, and BSCs development could alter the response patterns of C emissions to moisture conditions in desert soils. The results provide a scientific basis for studying the C cycle in desert ecosystems.
英文关键词	Hobq Desert Carbon emission Soil carbon density Biological soil crusts Hydrothermal factors
类型	Article
语种	英语
开放获取类型	gold, Green Submitted, Green Published
收录类别	SCI-E
WOS记录号	WOS:000698101800001
WOS关键词	TEMPERATURE SENSITIVITY ; ORGANIC-CARBON ; ARTEMISIA-ORDOSICA ; CO2 EFFLUX ; RESPIRATION ; DESERT ; FLUXES ; LAND ; COMMUNITIES ; GRASSLANDS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362776
作者单位	[Wang, Bo; Liu, Jing; Wang, Chenglong] Inner Mongolia Agr Univ, Coll Desert Control Sci & Engn, Hohhot 010018, Peoples R China; [Wang, Bo] Inner Mongolia Acad Forestry Sci, Hohhot 010010, Peoples R China; [Zhang, Xin] Minist Water Resources, Inst Water Resource Pasturing Area, Hohhot 010019, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bo,Liu, Jing,Zhang, Xin,et al. Changes in soil carbon sequestration and emission in different succession stages of biological soil crusts in a sand-binding area[J],2021,16(1).
APA	Wang, Bo,Liu, Jing,Zhang, Xin,&Wang, Chenglong.(2021).Changes in soil carbon sequestration and emission in different succession stages of biological soil crusts in a sand-binding area.CARBON BALANCE AND MANAGEMENT,16(1).
MLA	Wang, Bo,et al."Changes in soil carbon sequestration and emission in different succession stages of biological soil crusts in a sand-binding area".CARBON BALANCE AND MANAGEMENT 16.1(2021).