Soil sampling in the Lena River Delta, northern Siberia. Photo: Matthias Siewert.
Soil sampling in the Lena River Delta, northern Siberia. Photo: Matthias Siewert.


Gustaf Hugelius is co-author to a new article in Nature Communications with the title: "A spatial emergent constraint on the sensitivity of soil carbon turnover to global warming".

- In this study we use a combination of maps and Earth System models to estimate how sensitive soil carbon turnover is to climate warming, says Gustaf Hugelius, Department of Physcial Geography at Stockholm University. We assume steady ecosystem productivity, but modify projected soil respiration and estimate how global soil carbon stocks will change at steady state based on different global warming scenarios.

The results show that at +2 degrees global warming this will change by −232 ± 52 PgC. This change is very large (ca 20 years of of cumulative human emissions), but will occur over time scales of several centuries.

Interview with Gustaf in SVT.

Read more in the scientific paper Nature Communications
Varney, R.M., Chadburn, S.E., Friedlingstein, P., Burke, E.J., Koven, C.D., Hugelius, G. and Cox, P.M., 2020. A spatial emergent constraint on the sensitivity of soil carbon turnover to global warming. Nature Communications, 11(1), pp.1-8.

Contact
Gustaf Hugelius
E-mail: gustaf.hugelius@natgeo.su.se