Global Patterns and Drivers of Soil Extracellular Enzyme Activities in Response to Plant Invasion: A Meta‐Analysis

作者：Xin Chen, Ji Chen, Johannes J. Le Roux, Mark van Kleunen, Kees Jan van Groenigen, Linchuan Fang, Dehong Hu, Tianning Fan, Yi Liu, Lin Su, Yiqi Luo, Junji Cao, Zhou Yong, Robert L. Sinsabaugh, Min Luo · 发表于：Global Ecology and Biogeography · 年份：2025 · DOI：10.1111/geb.70084 · 被引用次数：13 · 研究领域：Legume Nitrogen Fixing Symbiosis、Phytase and its Applications、Soil Carbon and Nitrogen Dynamics

ABSTRACT Aim Plant invasion is a major global environmental challenge. While invasive plants can potentially enhance soil nutrient availability by stimulating soil extracellular enzyme activities, empirical studies have yielded conflicting results. A comprehensive understanding of global patterns and underlying drivers is therefore essential for inferring generalities. Location Global. Time Period 2000–2025. Major Taxa Studied Invasive plants and soil microorganisms. Methods We conducted a meta‐analysis on 635 observations from 117 studies worldwide, investigating the effect of plant invasion on 11 soil carbon (C)‐, nitrogen (N)‐ and phosphorus (P)‐acquiring enzyme activities. We also analysed how environmental drivers and ecosystem types modulated these responses. Results Plant invasion significantly increased hydrolytic C‐, N‐ and P‐acquiring enzyme activities by 18% (11%–27%), 29% (22%–37%), and 32% (24%–41%), respectively, while it had no significant effects on oxidative enzyme activities. These enzymatic responses were primarily driven by elevated dissolved organic carbon and soil moisture content, coupled with decreased fungal/bacterial ratios under invasion. The most pronounced enzymatic responses occurred in neutral and alkaline soils during the early stages of invasion and when invasive plants formed mycorrhizal associations. Different ecosystem types displayed distinct enzymatic responses to plant invasion: grasslands showed elevated N‐acquiring enzyme activities, w...