干旱区生态环境知识资源中心(Arid): The Oasisization Process Promotes the Transformation of Soil Organic Carbon into Soil Inorganic Carbon

Arid

DOI	10.3390/land13030336
	The Oasisization Process Promotes the Transformation of Soil Organic Carbon into Soil Inorganic Carbon
	Tang, Junhu; Gong, Lu; Ma, Xinyu; Zhu, Haiqiang; Ding, Zhaolong; Luo, Yan; Zhang, Han
通讯作者	Gong, L
来源期刊	LAND
EISSN	2073-445X
出版年	2024
卷号	13 期号:3
英文摘要	The dynamic fluctuations in the soil organic carbon (SOC) stock, a fundamental part of the terrestrial ecosystem's carbon stock, are critical to preserving the global carbon balance. Oases in arid areas serve as critical interfaces between oasis ecosystems and deserts, with land use changes within these oases being key factors affecting soil organic carbon turnover. However, the response of the soil SOC-CO2-SIC (soil inorganic carbon) micro-carbon cycle to oasis processes and their underlying mechanisms remains unclear. Five land-use types in the Alar reclamation area-cotton field (CF), orchard (OR), forest land (FL), waste land (WL), and sandy land (SL)-were chosen as this study's research subjects. Using stable carbon isotope technology, the transformation process of SOC in the varieties of land-use types from 0 to 100 cm was quantitatively analyzed. The results showed the following: (1) The SOC of diverse land-use types decreased with the increase in soil depth. There were also significant differences in SIC-delta C-13 values among the different land-use types. The PC(%) (0.73 g kg(-1)) of waste land was greatly higher than that of other land-use types (p < 0.05) (factor analysis of variance). (2) The CO2 fixation in cotton fields, orchards, forest lands, and waste land primarily originates from soil respiration, whereas, in sandy lands, it predominantly derives from atmospheric sources. (3) The redundancy analysis (RDA) results display that the primary influencing factors in the transfer of SOC to SIC are soil water content, pH, and microbial biomass carbon. Our research demonstrates that changes in land use patterns, as influenced by oasis processes, exert a significant impact on the conversion from SOC to SIC. This finding holds substantial significance for ecological land use management practices and carbon sequestration predictions in arid regions, particularly in the context of climate change.
英文关键词	soil organic carbon soil inorganic carbon oasis in arid areas stable carbon isotope technology carbon sink
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SSCI
WOS记录号	WOS:001193496100001
WOS关键词	LAND-USE ; TOTAL NITROGEN ; LOESS PLATEAU ; IMPACT ; MINERALIZATION ; STOICHIOMETRY ; VEGETATION ; GRASSLAND ; QUALITY ; STORAGE
WOS类目	Environmental Studies
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/2XILL650/404780
推荐引用方式 GB/T 7714	Tang, Junhu,Gong, Lu,Ma, Xinyu,et al. The Oasisization Process Promotes the Transformation of Soil Organic Carbon into Soil Inorganic Carbon[J],2024,13(3).
APA	Tang, Junhu.,Gong, Lu.,Ma, Xinyu.,Zhu, Haiqiang.,Ding, Zhaolong.,...&Zhang, Han.(2024).The Oasisization Process Promotes the Transformation of Soil Organic Carbon into Soil Inorganic Carbon.LAND,13(3).
MLA	Tang, Junhu,et al."The Oasisization Process Promotes the Transformation of Soil Organic Carbon into Soil Inorganic Carbon".LAND 13.3(2024).