Plant–soil–animal interactions and nutrient cycling in grazed grasslands
摘要
Grasslands are an abundant and important global ecosystem, occupying more than 40% of Earth’s ice-free terrestrial surface (Hewins et al., 2018). Grasslands grazed by livestock occur on ~40 million km2 (Lambin and Meyfroidt, 2011). Interactions among plants, soils, and animals are inherent to grazed grasslands (Sollenberger and Wallau, 2020) and affect a wide range of ecosystem functions. Nutrient cycling is one of the most consequential (Dubeux and Sollenberger, 2020).