TY - JOUR
T1 - Coherent responses of terrestrial C:N stoichiometry to drought across plants, soil, and microorganisms in forests and grasslands
AU - Sun, Yuan
AU - Liao, Jiahui
AU - Zou, Xiaoming
AU - Xu, Xuan
AU - Yang, Jinyan
AU - Chen, Han Y. H.
AU - Ruan, Honghua
PY - 2020
Y1 - 2020
N2 - Carbon (C) and nitrogen (N) are key to biogeochemical cycles in terrestrial ecosystems. Despite the negative effects of drought on multiple ecosystem processes, our understanding of the responses of C and N in plants, soil, and microorganisms to drought remains incomplete. Our meta-analysis of 379 observations from 79 studies revealed that the C and N concentrations and C:N ratios of plant organs, litter, and soil, and activities and stoichiometry of C- and N-acquiring extracellular enzymes all decreased under drought, while the microbial biomass C:N ratio increased. Moreover, the magnitudes of these responses generally increased with drought intensity and drought duration. These effects of drought were consistent across ecosystem types, including forests and grasslands. Our study underpinned the strong coherent responses of C:N stoichiometry to drought encompassing plants, soil, and microorganisms.
AB - Carbon (C) and nitrogen (N) are key to biogeochemical cycles in terrestrial ecosystems. Despite the negative effects of drought on multiple ecosystem processes, our understanding of the responses of C and N in plants, soil, and microorganisms to drought remains incomplete. Our meta-analysis of 379 observations from 79 studies revealed that the C and N concentrations and C:N ratios of plant organs, litter, and soil, and activities and stoichiometry of C- and N-acquiring extracellular enzymes all decreased under drought, while the microbial biomass C:N ratio increased. Moreover, the magnitudes of these responses generally increased with drought intensity and drought duration. These effects of drought were consistent across ecosystem types, including forests and grasslands. Our study underpinned the strong coherent responses of C:N stoichiometry to drought encompassing plants, soil, and microorganisms.
UR - https://hdl.handle.net/1959.7/uws:64187
U2 - 10.1016/j.agrformet.2020.108104
DO - 10.1016/j.agrformet.2020.108104
M3 - Article
SN - 0168-1923
VL - 292-293
JO - Agricultural and Forest Meteorology
JF - Agricultural and Forest Meteorology
M1 - 108104
ER -