Microbial controls over soil priming effects under chronic nitrogen and phosphorus additions in subtropical forests.

ABSTRACT: The soil priming effect (PE), defined as the modification of soil organic matter decomposition by labile carbon (C) inputs, is known to influence C storage in terrestrial ecosystems. However, how chronic nutrient addition, particularly in leguminous and non-leguminous forests, will affect PE through interaction with nutrient (e.g., nitrogen and phosphorus) availability is still unclear. Therefore, we collected soils from leguminous and non-leguminous subtropical plantations across a suite of historical nutrient addition regimes. We added ¹³C-labeled glucose to investigate how background soil nutrient conditions and microbial communities affect priming and its potential microbial mechanisms. Glucose addition increased soil organic matter decomposition and prompted positive primin

SUBMITTER: Li J 

PROVIDER: S-EPMC10689846 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature