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Rock-fragment covers veneer hillslopes in many parts of the world and influence the operation of hydrologic and geomorphic processes on those surfaces. The purpose of this investigation was to examine the spatial variability of rock-fragment cover on morphological units of hillslopes in southeastern Arizona, U.S.A. Simple statistical models, based upon hillslope gradient as well as a soil-slope...
Improved techniques for estimating soil erosion by water have shown that soil surface cover is a major component in the estimate of soil loss. Erosion prediction models require the user to input slope gradient and soil profile descriptions. If equations expressing the relations between slope gradient, soil profile rock fragment content, and surface rock fragment cover were embedded in these models,...