Format:
Online-Ressource
ISSN:
2196-632X
Content:
Abstract 3 cm- 2 - 1 3 cm- 2 - 1 3 cm- 2 - 1 3 cm- 2 - 1 (40 %) higher in the Mediterranean (arid) zone compared to burrow-embedded areas and much higher than previously reported in studies that were not based on continuous microtopographic monitoring. A total of 38 % of the sediment eroding from burrows accumulated within the burrow entrance, while 62 % was incorporated into hillslope sediment flux, which exceeds previous estimations 2-fold. On average, animals burrowed between 1.2–2.3 times a month, and the burrowing intensity increased after rainfall. This revealed a newly detected feedback mechanism between rainfall, erosion, and animal burrowing activity, likely leading to an underestimation of animal-triggered hillslope sediment flux in wetter climates. Our findings hence show that the rate of sediment redistribution due to animal burrowing is dependent on climate and that animal burrowing plays a larger than previously expected role in hillslope sediment redistribution. Subsequently, animal burrowing activity should be incorporated into soil erosion and landscape evolution models that rely on soil processes but do not yet include animal-induced surface processes on microtopographical scales in their algorithms.
In:
volume:10
In:
number:6
In:
year:2022
In:
pages:1273-1301
In:
extent:29
In:
Earth surface dynamics, Göttingen : Copernicus Publ., 2013-, 10, Heft 6 (2022), 1273-1301 (gesamt 29), 2196-632X
Language:
English
DOI:
10.5194/esurf-10-1273-2022
URN:
urn:nbn:de:101:1-2022122904181556449795
URL:
https://doi.org/10.5194/esurf-10-1273-2022
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2022122904181556449795
URL:
https://d-nb.info/1276793189/34
URL:
https://esurf.copernicus.org/articles/10/1273/2022/esurf-10-1273-2022.pdf
URL:
https://esurf.copernicus.org/articles/10/1273/2022/
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