RT Journal Article
T1 Overland flow generation mechanisms affected by topsoil treatment: Application to soil conservation.
A1 Hueso-González, Paloma
A1 Ruiz-Sinoga, José Damián
A1 Martínez-Murillo, Juan Francisco
A1 Lavee, Hanoh
K1 Suelos - Conservación - Mediterráneo
AB Hortonian overland-flow is responsible for significant amounts of soil loss in Mediterranean geomorphological systems. Restoring the native vegetation is the most effective way to control runoff and sediment yield. During the seeding and plant establishment, vegetation cover may be better sustained if soil is amended with an external source. Four amendments were applied in an experimental set of plots: straw mulching (SM); mulch with chipped branches of Aleppo Pine (Pinus halepensis L.) (PM); TerraCottem hydroabsorbent polymer (HP); and sewage sludge (RU). Plots were afforested following the same spatial pattern, and amendments were mixed with the soil at the rate 10 Mg ha− 1. This research demonstrates the role played by the treatments in overland flow generation mechanism. On one hand, the high macroporosity of SM and PM, together with the fact that soil moisture increased with depth, explains weak overland flow and thus low sediment yield due to saturation conditions. Therefore, regarding overland flow and sediment yield, RU behaves similarly to SM and PM. On the other hand, when HP was applied, overland flow developed quickly with relatively high amounts. This, together with the decrease downward in soil moisture along the soil profile, proved that mechanisms of overland flow are of the Hortonian type.
PB Elsevier
YR 2015
FD 2015
LK https://hdl.handle.net/10630/32870
UL https://hdl.handle.net/10630/32870
LA eng
NO https://doi.org/10.1016/j.geomorph.2014.10.033
NO https://v2.sherpa.ac.uk/id/publication/16914
NO This study was carried out in the framework of the P09-RNM-5057 research project, which was financially supported by the Regional Government of Andalusia. The study was also supported by Campus Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 22 ene 2026