Articles | Volume 15, issue 14
Biogeosciences, 15, 4561–4573, 2018
https://doi.org/10.5194/bg-15-4561-2018
Biogeosciences, 15, 4561–4573, 2018
https://doi.org/10.5194/bg-15-4561-2018

Research article 26 Jul 2018

Research article | 26 Jul 2018

Patterns of longer-term climate change effects on CO2 efflux from biocrusted soils differ from those observed in the short term

Anthony Darrouzet-Nardi et al.

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Cited articles

Belnap, J.: The potential roles of biological soil crusts in dryland hydrologic cycles, Hydrol. Process., 20, 3159–3178, https://doi.org/10.1002/hyp.6325, 2006. 
Belnap, J. and Phillips, S. L.: Soil biota in an ungrazed grassland: Response to annual grass (Bromus tectorum) invasion, Ecol. Appl., 11, 1261–1275, 2001. 
Belnap, J., Phillips, S. L., and Troxler, T.: Soil lichen and moss cover and species richness can be highly dynamic: The effects of invasion by the annual exotic grass Bromus tectorum, precipitation, and temperature on biological soil crusts in SE Utah, Appl. Soil Ecol., 32, 63–76, https://doi.org/10.1016/j.apsoil.2004.12.010, 2006. 
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Short summary
Biocrusts are photosynthetic communities on the surface of many desert soils. We investigated the response of biocrusts and the soil beneath them (including plant roots) to 9 years of simulated warming and changing precipitation patterns. We monitored the exchange of carbon between soil and atmosphere using automated chambers. As plants and biocrusts responded negatively to the treatments, we saw reduced photosynthesis in biocrusts but variable overall carbon exchange over 9 years.
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