Restoration boosts soil P-cycle multifunctionality in karst ecosystems by modulating soil properties and rare bacterial taxa

作者：Fujing Pan, Xuan Yu, Yueming Liang, Peilei Hu, Kelin Wang, Wei Zhang, Qian Yang · 发表于：Journal of Integrative Agriculture · 年份：2025 · DOI：10.1016/j.jia.2025.05.001 · 被引用次数：3 · 研究领域：Microbial Community Ecology and Physiology、Genomics and Phylogenetic Studies、Soil Carbon and Nitrogen Dynamics

• Natural restoration improves karst soil P-cycle multifunctionality compared to artificial restoration and cropland • Natural restoration boosts SOC and bacterial complexity and network tightness • Rare phoD -harboring bacterial taxa play a more critical role in driving soil P-cycle than dominant taxa Phosphorus (P) is an essential nutrient element that is critical for plant growth and ecosystem functionality. The soil P cycle plays multiple roles, such as sustaining plant growth and productivity, regulating nutrient balance within ecosystems, and enhancing ecosystem adaptability and resilience. This cycle is influenced by factors such as the restoration approach and microbial community dynamics. However, the extent to which the restoration approach alters the P cycle in karst ecosystems and the underlying microbial mechanisms remain poorly understood. The P-cycle multifunctionality index (P-cycle MFI) serves as a comprehensive indicator for evaluating soil P cycle function, and it provides insights into changes in the P cycle between different restoration approaches. To investigate the shifts in soil P-cycle MFI and microbial mechanisms between different restoration approaches, we analyzed soil available P (AP), total P (TP), microbial biomass P (MBP), and the activities of acid phosphatase (ACP) and alkaline phosphatase (ALP). These data were used to calculate the P-cycle MFI by averaging the Z-scores between two restoration approaches (artificial restoration of forest (AF...