Articles | Volume 11, issue 6
Research article
15 Nov 2023
Research article |  | 15 Nov 2023

Effects of seasonal variations in vegetation and precipitation on catchment erosion rates along a climate and ecological gradient: insights from numerical modeling

Hemanti Sharma and Todd A. Ehlers

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Cited articles

Avdeev, B., Niemi, N. A., and Clark, M. K.: Doing more with less: Bayesian estimation of erosion models with detrital thermochronometric data, Earth Planet. Sc. Lett., 305, 385–395,, 2011. 
Beaudoing, H., Rodell, M., and NASA/GSFC/HSL: GLDAS Noah Land Surface Model L4 monthly 0.25 × 0.25 degree, Version 2.1, GES DISC [data set],, 2020. 
Bookhagen, B., Thiede, R. C., and Strecker, M. R.: Abnormal monsoon years and their control on erosion and sediment flux in the high, arid northwest Himalaya, Earth Planet. Sc. Lett., 231, 131–146,, 2005. 
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Short summary
Seasonality in precipitation (P) and vegetation (V) influences catchment erosion (E), although which factor plays the dominant role is unclear. In this study, we performed a sensitivity analysis of E to P–V seasonality through numerical modeling. Our results suggest that P variations strongly influence seasonal variations in E, while the effect of seasonal V variations is secondary but significant. This is more pronounced in moderate and least pronounced in extreme environmental settings.