Precipitation Pattern Regulates Soil Carbon Flux Responses to Nitrogen Addition in a Temperate Forest

Yan, Guoyong; Xing, Yajuan; Liu, Guancheng; Huang, Binbin; Wang, Qinggui

doi:10.1007/s10021-021-00606-y

Cited by 10 publications

(1 citation statement)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Soil heterotrophic responses drove transient decreases in total CO 2 flux during episodic inundation events, with the most pronounced effects observed when the entire soil rooting zone was saturated (Hopple et al, 2023). The inhibition of CO 2 release by soil saturation has been observed in similar studies of extreme precipitation impacts (Chen et al, 2017;Yan et al, 2021) and has mainly been attributed to decreased root, microbial, and exoenzyme activity due to hypoxia stress and/or limited nutrient transport (Li et al, 2019;Marzen et al, 2017). In our study, the resistance of root-and-rhizosphere CO 2 flux to changing soil VWC buffered soil heterotrophic impacts on total CO 2 flux, as demonstrated by the relatively rapid recovery of total CO 2 flux following episodic inundation events.…”

Section: Source Sensitivity To Episodic Environmental Changementioning

confidence: 65%

Root and Microbial Soil CO₂ and CH₄ Fluxes Respond Differently to Seasonal and Episodic Environmental Changes in a Temperate Forest

et al. 2023

View full text Add to dashboard Cite

Upland forest soils are typically major atmospheric carbon dioxide (CO2) sources and methane (CH4) sinks, but the contributions of root and microbial processes, as well as their separate temporal responses to environmental change, remain poorly understood. This 2‐year study was conducted in a temperate, deciduous forest located on the Chesapeake Bay in Maryland, USA. We used temporal CO2 and CH4 flux measurements, exclusion‐source partitioning, and an ecosystem‐scale flooding experiment to understand how carbon (C) fluxes, and their root and microbial sources, respond to seasonal and episodic environmental change. We show that the root‐and‐rhizosphere component of soil CO2 and CH4 flux is significant and that its dependence on soil temperature and volumetric water content (VWC) influences soil C dynamics at seasonal timescales. Experimental flooding shows that CO2 and CH4 flux responses to episodic moisture change were driven by suppression of soil heterotrophs, while root respiration did not respond to transient hydrologic disturbance. Methane uptake responded strongly to episodic inundation, reinforcing the important role of soil moisture in the short‐term control of the forest soil CH4 sink. However, despite the clear seasonality of CH4 uptake, as well as its strong response to short‐term experimental inundation, temperature and VWC were weak predictors of CH4 uptake at a seasonal timescale. We suggest that CH4 consumption in the long‐term may be determined by vegetation, nutrients, microbial communities, or other factors correlated with seasonal changes. Our results indicate that root and microbial sources of both CO2 and CH4 flux respond differently in timing and magnitude to seasonal and episodic environmental change.

show abstract

Section: Source Sensitivity To Episodic Environmental Changementioning

confidence: 65%

Root and Microbial Soil CO₂ and CH₄ Fluxes Respond Differently to Seasonal and Episodic Environmental Changes in a Temperate Forest

et al. 2023

View full text Add to dashboard Cite

show abstract

Additive effects of N addition and changing precipitation on soil respiration in a climate transitional forest

Feng,

Gao,

et al. 2024

CATENA

View full text Add to dashboard Cite

Effects of extreme rainfall frequency on soil organic carbon fractions and carbon pool in a wet meadow on the Qinghai-Tibet Plateau

Wang

et al. 2023

Ecological Indicators

View full text Add to dashboard Cite

Precipitation Pattern Regulates Soil Carbon Flux Responses to Nitrogen Addition in a Temperate Forest

Cited by 10 publications

References 66 publications

Root and Microbial Soil CO₂ and CH₄ Fluxes Respond Differently to Seasonal and Episodic Environmental Changes in a Temperate Forest

Root and Microbial Soil CO₂ and CH₄ Fluxes Respond Differently to Seasonal and Episodic Environmental Changes in a Temperate Forest

Additive effects of N addition and changing precipitation on soil respiration in a climate transitional forest

Effects of extreme rainfall frequency on soil organic carbon fractions and carbon pool in a wet meadow on the Qinghai-Tibet Plateau

Contact Info

Product

Resources

About

Precipitation Pattern Regulates Soil Carbon Flux Responses to Nitrogen Addition in a Temperate Forest

Cited by 10 publications

References 66 publications

Root and Microbial Soil CO2 and CH4 Fluxes Respond Differently to Seasonal and Episodic Environmental Changes in a Temperate Forest

Root and Microbial Soil CO2 and CH4 Fluxes Respond Differently to Seasonal and Episodic Environmental Changes in a Temperate Forest

Additive effects of N addition and changing precipitation on soil respiration in a climate transitional forest

Effects of extreme rainfall frequency on soil organic carbon fractions and carbon pool in a wet meadow on the Qinghai-Tibet Plateau

Contact Info

Product

Resources

About

Root and Microbial Soil CO₂ and CH₄ Fluxes Respond Differently to Seasonal and Episodic Environmental Changes in a Temperate Forest

Root and Microbial Soil CO₂ and CH₄ Fluxes Respond Differently to Seasonal and Episodic Environmental Changes in a Temperate Forest