蚯蚓
营养物
土壤水分
环境科学
营养循环
农学
土壤生态学
土壤生物学
生态系统
水分
陆地生态系统
土壤生物多样性
土壤有机质
生态学
生物
土壤科学
化学
有机化学
作者
Na Mao,Mingan Shao,Wei Xiang,Xiaorong Wei
标识
DOI:10.1016/j.jenvman.2022.117061
摘要
Soil microbial nutrient limitations significantly affect microbial processes and thus ecosystem functionality, whereas the response of soil microbial nutrient limitations to earthworms has rarely been addressed but is urgently needed due to the important role of earthworms in terrestrial ecosystems. By examining how earthworms regulate plants’ effects on microbial nutrient limitations under contrasting soil types and moisture conditions, we showed that plant presence reduced microbial carbon (C) limitation and such reduction was enhanced by earthworm. Plant presence increased soil microbial phosphorus (P) limitation in soils with earthworms in most cases. Additionally, the effects of plants on microbial nutrient limitations and their responses to earthworms were dependent on soil type (or soil nutrients) and moisture. These results suggested that earthworms have the potential to reduce soil microbial C limitation but enhance P limitation and highlighted the importance of nutrients and moisture in influencing the effects of earthworms and plants on microbial nutrient limitations.
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