Drought Impacts on Plant-Soil Carbon Allocation-Integrating Future Mean Climatic Conditions.

ABSTRACT: Droughts affect soil microbial abundance and functions-key parameters of plant-soil carbon (C) allocation dynamics. However, the impact of drought may be modified by the mean climatic conditions to which the soil microbiome has previously been exposed. In a future warmer and drier world, effects of drought may therefore differ from those observed in studies that simulate drought under current climatic conditions. To investigate this, we used the field experiment 'Hohenheim Climate Change,' an arable field where predicted drier and warmer mean climatic conditions had been simulated for 12 years. In April 2021, we exposed this agroecosystem to 8 weeks of drought with subsequent rewetting. Before drought, at peak drought, and after rewetting, we pulse-labelled winter wheat in situ with ¹

SUBMITTER: Leyrer V 

PROVIDER: S-EPMC11815358 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature