Dissolved carbon flow to particulate organic carbon enhances soil carbon sequestration
Abstract 13 C-labeling experiment in 10 soils from 5 grassland sites as well as a modeling analysis, showed that up to 12.29 % of isotope-labeled glucose C (i.e., dissolved C) was detected in the POC pool. In addition, the glucose-derived POC was correlated with 13 C-MBC (microbial biomass carbon) and the fraction of clay and silt, suggesting that the flow of dissolved C to POC is dependent on interactions between soil physical and microbial processes. The modeling analysis showed that ignoring the C flow from MBC to POC significantly underestimated soil C sequestration by up to 53.52 % across the 10 soils. The results emphasize that the soil mineral-regulated microbial process, besides the plant structural residues, is a significant contributor to POC, acting as a vital component in SOC dynamics.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Dissolved carbon flow to particulate organic carbon enhances soil carbon sequestration ; volume:10 ; number:2 ; year:2024 ; pages:441-450 ; extent:10
Soil ; 10, Heft 2 (2024), 441-450 (gesamt 10)
- Urheber
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Si, Qintana
Chen, Kangli
Wei, Bin
Zhang, Yaowen
Sun, Xun
Liang, Junyi
- DOI
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10.5194/soil-10-441-2024
- URN
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urn:nbn:de:101:1-2408061045209.696476916602
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
- 14.08.2025, 10:46 MESZ
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Beteiligte
- Si, Qintana
- Chen, Kangli
- Wei, Bin
- Zhang, Yaowen
- Sun, Xun
- Liang, Junyi
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