Root carbon and nutrient homeostasis determines downy oak sapling survival and recovery from drought.

ABSTRACT: The role of carbon (C) and nutrient uptake, allocation, storage and especially their interactions in survival and recovery of trees under increased frequencies and intensities of drought events is not well understood. A full factorial experiment with four soil water content regimes ranging from extreme drought to well-watered conditions and two fertilization levels was carried out. We aimed to investigate whether nutrient addition mitigates drought effects on downy oak (Quercus pubescens Willd.) and whether storage pools of non-structural carbohydrates (NSC) are modified to enhance survival after 2.5 years of drought and recovery after drought relief. Physiological traits, such as photosynthesis, predawn leaf water potential as well as tissue biomass together with pools and dynamics of NSC

SUBMITTER: Ouyang SN 

PROVIDER: S-EPMC8436808 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature