Details
Originalsprache | Englisch |
---|---|
Aufsatznummer | 109766 |
Fachzeitschrift | Agriculture, Ecosystems and Environment |
Jahrgang | 392 |
Frühes Online-Datum | 21 Mai 2025 |
Publikationsstatus | Elektronisch veröffentlicht (E-Pub) - 21 Mai 2025 |
Abstract
Microbial carbon use efficiency (CUE) is a crucial parameter for characterizing soil organic carbon (C) dynamics. However, the response of microbial CUE to land-use change and the underlying mechanisms remain unclear. In this study, we estimated CUE using a biogeochemical equilibrium model across three paired natural and anthropogenic land-use systems. We found that the conversion from natural to anthropogenic ecosystems reduces CUE and increases microbial C limitation. Through a combination of variation partitioning modeling, random forest analysis, and partial least squares path modeling, we showed that elemental stoichiometry was up to 4.2 times more important in determining CUE than soil physiochemical properties and microbial physiological characteristics, and the microbial C to nitrogen ratio had a key positive effect on CUE. Therefore, the role of microbial eco-physiological traits (e.g., fungi:bacteria) in improving CUE and thus mitigating C loss from anthropogenic ecosystems requires consideration in land management strategies for C sequestration.
ASJC Scopus Sachgebiete
- Umweltwissenschaften (insg.)
- Ökologie
- Agrar- und Biowissenschaften (insg.)
- Nutztierwissenschaften und Zoologie
- Agrar- und Biowissenschaften (insg.)
- Agronomie und Nutzpflanzenwissenschaften
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in: Agriculture, Ecosystems and Environment, Jahrgang 392, 109766, 15.10.2025.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Anthropogenic land-use driven changes in soil stoichiometry reduce microbial carbon use efficiency
AU - Tong, Xinle
AU - Fan, Lichao
AU - Wang, Mingda
AU - Guo, Jingjing
AU - Bao, Lei
AU - Hui, Lingzhi
AU - Chen, Yichao
AU - Li, Zhengrong
AU - Qian, Shuai
AU - Xu, Xiaodong
AU - Ma, Lin
AU - Meng, Xiangtian
AU - Zhang, Xuechen
AU - Zamanian, Kazem
AU - Shukla, Manoj
AU - Tian, Xiaohong
AU - Dorodnikov, Maxim
N1 - Publisher Copyright: © 2025 Elsevier B.V.
PY - 2025/5/21
Y1 - 2025/5/21
N2 - Microbial carbon use efficiency (CUE) is a crucial parameter for characterizing soil organic carbon (C) dynamics. However, the response of microbial CUE to land-use change and the underlying mechanisms remain unclear. In this study, we estimated CUE using a biogeochemical equilibrium model across three paired natural and anthropogenic land-use systems. We found that the conversion from natural to anthropogenic ecosystems reduces CUE and increases microbial C limitation. Through a combination of variation partitioning modeling, random forest analysis, and partial least squares path modeling, we showed that elemental stoichiometry was up to 4.2 times more important in determining CUE than soil physiochemical properties and microbial physiological characteristics, and the microbial C to nitrogen ratio had a key positive effect on CUE. Therefore, the role of microbial eco-physiological traits (e.g., fungi:bacteria) in improving CUE and thus mitigating C loss from anthropogenic ecosystems requires consideration in land management strategies for C sequestration.
AB - Microbial carbon use efficiency (CUE) is a crucial parameter for characterizing soil organic carbon (C) dynamics. However, the response of microbial CUE to land-use change and the underlying mechanisms remain unclear. In this study, we estimated CUE using a biogeochemical equilibrium model across three paired natural and anthropogenic land-use systems. We found that the conversion from natural to anthropogenic ecosystems reduces CUE and increases microbial C limitation. Through a combination of variation partitioning modeling, random forest analysis, and partial least squares path modeling, we showed that elemental stoichiometry was up to 4.2 times more important in determining CUE than soil physiochemical properties and microbial physiological characteristics, and the microbial C to nitrogen ratio had a key positive effect on CUE. Therefore, the role of microbial eco-physiological traits (e.g., fungi:bacteria) in improving CUE and thus mitigating C loss from anthropogenic ecosystems requires consideration in land management strategies for C sequestration.
KW - Anthropogenic disturbance
KW - Carbon sequestration
KW - Carbon use efficiency
KW - Land-use change
KW - Microbial stoichiometry
UR - http://www.scopus.com/inward/record.url?scp=105005430106&partnerID=8YFLogxK
U2 - 10.1016/j.agee.2025.109766
DO - 10.1016/j.agee.2025.109766
M3 - Article
AN - SCOPUS:105005430106
VL - 392
JO - Agriculture, Ecosystems and Environment
JF - Agriculture, Ecosystems and Environment
SN - 0167-8809
M1 - 109766
ER -