at Google ScholarTitle data
Rodionov, Andrei ; Amelung, Wulf ; Peinemann, Norman ; Haumaier, Ludwig ; Zhang, Xudong ; Kleber, Markus ; Glaser, Bruno ; Urusevskaja, Inga ; Zech, Wolfgang:
Black carbon in grassland ecosystems of the world.
In: Global Biogeochemical Cycles.
Vol. 24
(2010)
Issue 3
.
- GB3013.
ISSN 1944-9224
DOI: https://doi.org/10.1029/2009GB003669
Abstract in another language
Black carbon (BC) is the product of incomplete burning processes and a significant component of the passive soil organic carbon (SOC) pool. The role of BC in the globalcarbon cycle is still unclear. This study aimed to quantify and characterize BC in major grassland ecosystems of the world. Twenty‐eight representative soil profiles (mainly Mollisols) were sampled in the Russian Steppe, the U.S. Great Plains, the ArgentinianPampa, the Manchurian Plains in China, and the Chernozem region in central Germany. Black carbon contents were estimated using benzene polycarboxylic acids (BPCA) as a molecular marker, and indications about the origin of the BC were derived from bulk andcompound‐specific d13C analyses and radiocarbon dating of bulk soil organic matter (SOM). Our findings suggest that between 5% and 30% of SOC stocks consist of BC. Maximum BC contributions to SOC frequently were found at deeper parts of the A horizon with 14C ages younger than 7000 years BP; that is, incorporation of C as charred particles accompanied ecosystem development since the mid‐Holocene. Most of this BCformed from local vegetation, as indicated by a 13C isotope signature similar to that of bulkSOM. At some sites, also nonlocal sources contributed to soil BC, e.g., fossil fuel BC inputs at the German sites. Black carbon stocks were highest in Chernozems and lowest in Kastanozems. The Russian Steppe and Chinese Manchurian sites stored about 3–4 timesmore BC (around 3 kg m−2) than did the other sites because of thicker A horizons that were rich in BC. On a global scale, we estimate that steppe ecosystems contain between 4 and 17 Pg BC.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | BAYCEER81310 |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Physics Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences Research Institutions Research Institutions > Research Centres |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science |
| Date Deposited: | 29 Jun 2015 06:09 |
| Last Modified: | 18 Nov 2022 10:22 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/15500 |