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Sulfur biogeochemical dynamics of grassland soils in northern China transect along an aridity gradient

文献类型：期刊论文

作者Cao, Yi-Wen5,7; Wang, Xiao-Bo1,2,7; Wang, Chao7; Bai, Edith4,7; Wu, Nanping3,6
刊名GEODERMA
出版日期2024-11-01
卷号451页码:12
关键词Aridity index Grassland Sulfur stable isotope Sulfur cycle
ISSN号0016-7061
DOI10.1016/j.geoderma.2024.117073
英文摘要As an essential nutrient element for biological growth and metabolism, sulfur is closely interlinked with the carbon and nitrogen cycles, and it is one of the limiting elements for grassland productivity. Here we investigated the spatial distribution of sulfur contents and S-34 stable isotope along the North China Transect (NCT), with the aim to explore the shaping role of the aridity index (AI) gradient on sulfur cycling dynamic in arid and semi-arid grasslands. In the area with AI < 0.12, soil sulfur contents and sulfur isotopic compositions (delta S-34) showed no correlation with AI, indicating that abiotic processes predominantly govern the sulfur cycle in this area. In the area where 0.12 <= AI < 0.32, both sulfur contents and delta S-34 values increased with rising AI, with microbial-mediated reduction being the primary sulfur cycling process. In the area with 0.32 <= AI < 0.60, soil sulfur contents continued to increase with higher AI, but delta S-34 significantly decreased as AI increased, suggesting plant uptake as the dominant sulfur cycling process in this area. This study demonstrated the significant impact of AI on sulfur dynamics, providing insights into the different drivers of sulfur cycling along the aridity gradient, and offering guidance for developing targeted strategies under global climate change.
WOS关键词BACTERIAL SULFATE REDUCTION ; ISOTOPE FRACTIONATION ; CARBON ; CONSTRAINTS ; NITROGEN ; RATIOS ; DRIVEN ; MINERALIZATION ; STOICHIOMETRY ; ECOSYSTEMS
资助项目National Natural Science Foundation of China[42322306] ; National Natural Science Foundation of China[41673005] ; Chinese Academy of Sciences[E2710101] ; Youth Innovation Promotion Association CAS[Y2022064]
WOS研究方向Agriculture
语种英语
WOS记录号WOS:001342102000001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
源URL[http://ir.idsse.ac.cn/handle/183446/11777]  
专题深海科学研究部_深海地质与地球化学研究室
通讯作者Wu, Nanping
作者单位1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou, Peoples R China
2.Lanzhou Univ, Ctr Grassland Microbiome, State Key Lab Herbage Improvement & Grassland Agro, Lanzhou, Peoples R China
3.Monash Univ, Sch Earth Atmosphere & Environm, Clayton, Vic 3800, Australia
4.Northeast Normal Univ, Sch Geog Sci, Key Lab Geog Proc & Ecol Secur Changbai Mt, Minist Educ, Changchun, Peoples R China
5.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut C, Shenzhen 518055, Peoples R China
6.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
7.Chinese Acad Sci, CAS Key Lab Forest Ecol & Management, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Yi-Wen,Wang, Xiao-Bo,Wang, Chao,et al. Sulfur biogeochemical dynamics of grassland soils in northern China transect along an aridity gradient[J]. GEODERMA,2024,451:12.
APA Cao, Yi-Wen,Wang, Xiao-Bo,Wang, Chao,Bai, Edith,&Wu, Nanping.(2024).Sulfur biogeochemical dynamics of grassland soils in northern China transect along an aridity gradient.GEODERMA,451,12.
MLA Cao, Yi-Wen,et al."Sulfur biogeochemical dynamics of grassland soils in northern China transect along an aridity gradient".GEODERMA 451(2024):12.

入库方式： OAI收割

来源：深海科学与工程研究所

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