Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8362509 | Soil Biology and Biochemistry | 2018 | 10 Pages |
Abstract
In total, deep-rooting catch crops and short-term earthworm activities promote C accumulation in the subsoil followed by biopore-specific microbial processing predominantly governed by the C input frequency. As root biopores are up to 40 times more common than earthworm biopores, they dominate the OM input into subsoils. Such C inputs create several years lasting hotspots for preferential root growth and nutrient mobilisation in the subsoil. We conclude that root- and earthworm-derived biopores are vertical pathways for plant C from the soil surface into the subsoil and for intensive processing of litter C and sequestration of microbial necromass.
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Authors
Callum C. Banfield, Johanna Pausch, Yakov Kuzyakov, Michaela A. Dippold,