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Factors controlling the contributions of bacterial and fungal residue carbon to soil organic carbon in grassland ecosystems

文献类型：期刊论文

作者Yu, Yingchao2,3; Pan, Junxiao2; Wu, Honghui4,5; Zhu, Juntao2,3; Zong, Ning2; An, Hui6; Wang, Changhui10; Zuo, Xiaoan11; Wei, Cunzheng12; Zhang, Fawei1
刊名CATENA
出版日期2024-06-01
卷号241页码:108006
关键词Fungal residue carbon Bacterial residue carbon Extracellular enzyme activity Soil C/N Alpine grassland Temperate grassland
DOI10.1016/j.catena.2024.108006
产权排序1
文献子类Article
英文摘要Soil microbial residue carbon (MRC) plays an important role in the accumulation and stabilization of soil organic carbon (SOC) in grassland ecosystems. Numerous studies to date show that soil bacterial MRC and fungal MRC have different effects on SOC stability, however, there is a lack of understanding about what regulates the contributions of the bacterial MRC and fungal MRC to SOC in large-scale grassland ecosystems. In this study, we selected nine alpine and temperate grassland ecosystems to quantify the effects of biotic (plant and microbial) and abiotic (climate and soil) factors on the bacterial and fungal MRC/SOC. The results showed that 1) Both biotic and abiotic factors explained 97% and 89% of the variations in the bacterial MRC/SOC and fungal MRC/ SOC, respectively. Compared with the fungal MRC/SOC, the bacterial MRC/SOC could be explained more by the biotic and abiotic factors. 2) The bacterial MRC/SOC was clearly correlated with climate and increased as the mean annual temperature increased and decreased as the mean annual precipitation increased. The bacterial MRC/SOC was negatively correlated with the soil phosphorus stoichiometry. 3) The fungal MRC/SOC was significantly correlated with mean annual temperature and was negatively correlated with the ratio of carbon to nitrogen. Our study demonstrates that the bacterial and fungal MRC/SOC respond differently to environmental changes, which can contribute to the regulation of soil carbon sequestration in grassland ecosystems by modulating different soil microbial communities under climate change.
WOS关键词MICROBIAL COMMUNITIES ; BIOMASS ; PLFA ; EXTRACTION ; PATTERNS
WOS研究方向Geology ; Agriculture ; Water Resources
WOS记录号WOS:001295833300001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/206945]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者Zhang, Xinyu
作者单位1.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
4.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, State Key Lab Efficient Utilizat Arid & Semiarid A, Beijing 100081, Peoples R China
5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr & Rural Affairs, Key Lab Arable Land Qual Monitoring & Evaluat, Beijing 100081, Peoples R China
6.Land Degradat & Ecol Restorat Northwestern, Breeding Base State Key Lab, Yinchuan 750021, Ningxia, Peoples R China
7.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Hulunber Grassland Ecosyst Observat & Res Stn, Beijing 100081, Peoples R China
8.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Cele Natl Stn Observat & Res Desert Grassland Ecos, Urumqi 830011, Peoples R China
9.Heilongjiang Acad Agr Sci, Prataculture Res Inst, Harbin 150086, Peoples R China
10.Shanxi Agr Univ, Coll Grassland Sci, Taigu 030801, Peoples R China
推荐引用方式
GB/T 7714		 Yu, Yingchao,Pan, Junxiao,Wu, Honghui,et al. Factors controlling the contributions of bacterial and fungal residue carbon to soil organic carbon in grassland ecosystems[J]. CATENA,2024,241:108006.
APA Yu, Yingchao.,Pan, Junxiao.,Wu, Honghui.,Zhu, Juntao.,Zong, Ning.,...&Zhang, Xinyu.(2024).Factors controlling the contributions of bacterial and fungal residue carbon to soil organic carbon in grassland ecosystems.CATENA,241,108006.
MLA Yu, Yingchao,et al."Factors controlling the contributions of bacterial and fungal residue carbon to soil organic carbon in grassland ecosystems".CATENA 241(2024):108006.

入库方式： OAI收割

来源：地理科学与资源研究所

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