Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1038/s41467-022-29605-w
Lizenz creative commons licence
Titel (primär) Microscale carbon distribution around pores and particulate organic matter varies with soil moisture regime
Autor Schlüter, S.; Leuther, F.; Albrecht, L.; Hoeschen, C.; Kilian, R.; Surey, R.; Mikutta, R.; Kaiser, K.; Mueller, C.W.; Vogel, H.-J.
Quelle Nature Communications
Erscheinungsjahr 2022
Department BOSYS
Band/Volume 13
Seite von art. 2098
Sprache englisch
Topic T5 Future Landscapes
Supplements https://static-content.springer.com/esm/art%3A10.1038%2Fs41467-022-29605-w/MediaObjects/41467_2022_29605_MOESM1_ESM.pdf
Abstract Soil carbon sequestration arises from the interplay of carbon input and stabilization, which vary in space and time. Assessing the resulting microscale carbon distribution in an intact pore space, however, has so far eluded methodological accessibility. Here, we explore the role of soil moisture regimes in shaping microscale carbon gradients by a novel mapping protocol for particulate organic matter and carbon in the soil matrix based on a combination of Osmium staining, X-ray computed tomography, and machine learning. With three different soil types we show that the moisture regime governs C losses from particulate organic matter and the microscale carbon redistribution and stabilization patterns in the soil matrix. Carbon depletion around pores (aperture > 10 µm) occurs in a much larger soil volume (19–74%) than carbon enrichment around particulate organic matter (1%). Thus, interacting microscale processes shaped by the moisture regime are a decisive factor for overall soil carbon persistence.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=25981
Schlüter, S., Leuther, F., Albrecht, L., Hoeschen, C., Kilian, R., Surey, R., Mikutta, R., Kaiser, K., Mueller, C.W., Vogel, H.-J. (2022):
Microscale carbon distribution around pores and particulate organic matter varies with soil moisture regime
Nat. Commun. 13 , art. 2098 10.1038/s41467-022-29605-w