Journal article

Climate Dictates Magnitude of Asymmetry in Soil Depth and Hillslope Gradient

Assaf Inbar, Petter Nyman, Francis K Rengers, Patrick NJ Lane, Gary J Sheridan

GEOPHYSICAL RESEARCH LETTERS | AMER GEOPHYSICAL UNION | Published : 2018

Abstract

Hillslope asymmetry is often attributed to differential eco-hydro-geomorphic processes resulting from aspect-related differences in insolation. At midlatitudes, polar facing hillslopes are steeper, wetter, have denser vegetation, and deeper soils than their equatorial facing counterparts. We propose that at regional scales, the magnitude in insolation-driven hillslope asymmetry is sensitive to variations in climate, and investigate the fire-prone landscapes in southeastern Australia to evaluate this hypothesis. Patterns of asymmetry in soil depth and landform were quantified using soil depth measurements and topographic analysis across a contemporary rainfall gradient. Results show that pola..

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Grants

Awarded by Australian Research Council (ARC) Linkage Project


Funding Acknowledgements

This project was funded by the Victorian Department of Land Water and Planning (DELWP) Integrated Forest Ecosystem Research program and Australian Research Council (ARC) Linkage Project (LP 150200654). Data are available in the supporting information.