Articles | Volume 4, issue 4
https://doi.org/10.5194/esurf-4-819-2016
https://doi.org/10.5194/esurf-4-819-2016
Research article
 | 
04 Nov 2016
Research article |  | 04 Nov 2016

Influence of topography and human activity on apparent in situ 10Be-derived erosion rates in Yunnan, SW China

Amanda H. Schmidt, Thomas B. Neilson, Paul R. Bierman, Dylan H. Rood, William B. Ouimet, and Veronica Sosa Gonzalez

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Cited articles

Andermann, C., Bonnet, S., and Gloaguen, R.: Evaluation of precipitation data sets along the Himalayan front, Geochem. Geophy. Geosy., 12, Q07023, https://doi.org/10.1029/2011GC003513, 2011.
Balco, G., Stone, J. O., Lifton, N. A., and Dunai, T. J.: A complete and easily accessible means of calculating surface exposure ages or erosion rates from 10Be and 26Al measurements, Quat. Geochronol., 3, 174–195, https://doi.org/10.1016/j.quageo.2007.12.001, 2008.
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Bierman, P. R. and Steig, E.: Estimating rates of denudation and sediment transport using cosmogenic isotope abundances in sediment, Earth Surf. Proc. Land., 21, 125–139, 1996.
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Short summary
In order to test the assumption that erosion rates derived from Be-10 are not affected by increases in erosion due to contemporary agricultural land use, we measured erosion rates in three tributaries of the Mekong River. We find that in the most heavily agricultural landscapes, the apparent long-term erosion rate correlates best with measures of modern land use, suggesting that agriculture has eroded below the mixed layer and is affecting apparent erosion rates derived from Be-10.