Partitioning of soil CO2 flux components in a temperate grassland ecosystem

This research paper details the use of an automated multiplexed soil-respiration (SR) system to partition soil CO2 fluxes into root, mycorrhizal hyphae, and heterotrophic components within a UK grassland over a three-month summer period.

• The study utilized three types of soil collars to partition fluxes: shallow surface collars for total SR flux, deep collars to exclude roots and mycorrhizal fungi, and 20-µm pore mesh window collars to exclude only roots. Deep collar insertion resulted in a significant reduction of fluxes by approximately 40%.
• Autotrophic root and mycorrhizal fluxes remained relatively stable. Root fluxes initially contributed 10–30% of the total flux, but this contribution declined over time as the mycorrhizal contribution increased during the latter part of the measurement period.
• Soil respiration components responded differently to climatic factors: root fluxes responded equally to light and temperature; heterotrophic fluxes responded strongly to soil moisture and temperature; and mycorrhizal components were more responsive to light than to temperature or soil moisture.

APA

Stockholm Environment Institute (2012). Partitioning of soil CO2 flux components in a temperate grassland ecosystem. https://www.sei.org/publications/partitioning-of-soil-co2-flux-components-in-a-temperate-grassland-ecosystem/

Chicago

Stockholm Environment Institute. Partitioning of soil CO2 flux components in a temperate grassland ecosystem. 2012. https://www.sei.org/publications/partitioning-of-soil-co2-flux-components-in-a-temperate-grassland-ecosystem/.

Wikipedia

{{cite report |author=Stockholm Environment Institute |title=Partitioning of soil CO2 flux components in a temperate grassland ecosystem |date=16 March 2012 |url=https://www.sei.org/publications/partitioning-of-soil-co2-flux-components-in-a-temperate-grassland-ecosystem/ |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{stockholmenvironmentinstitute2012partitioning, author = {{Stockholm Environment Institute}}, title = {{Partitioning of soil CO2 flux components in a temperate grassland ecosystem}}, institution = {Stockholm Environment Institute}, year = {2012}, month = mar, url = {https://www.sei.org/publications/partitioning-of-soil-co2-flux-components-in-a-temperate-grassland-ecosystem/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }