SPRUCE S1 Bog Sphagnum CO2 Flux Measurements and Partitioning into Re and GPP

This data set provides (1) the results of in-situ Sphagnum-peat hourly net ecosystem exchange (NEE) measured using a LICOR 8100 gas exchange system and (2) the component fluxes -- gross primary production (GPP) and ecosystem respiration (Re), derived using empirical regressions.

NEE measurements were made from 6 June to 6 November 2014 and 20 March to 10 May 2015. Three 8100 chambers per dominant species (S. magellanicum or S. fallax) were placed in the S1 Bog in relatively open ground where there was no obvious hummock-hollow microtopography. The 8100 chambers were not located in the SPRUCE experimental enclosures.

Citation: 

Walker, A.P., K.R. Carter, P.J. Hanson, W.R. Nettles, J.R. Philips, S.D. Sebestyen, and D.J. Weston. 2017. SPRUCE S1 Bog Sphagnum CO2 Flux Measurements and Partitioning into Re and GPP. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/CDIAC/spruce.039

LICOR 8100 soil respiration chambers as installed in S1 Bog to measure Sphagnum NEE.