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Alpine and mountain slopes represent important pathways that link high-altitude grazing areas to\udmeadows and rangelands at lower elevations. Given the often acute gradients associated with such environments,\udthey potentially represent highly efficient runoff conveyance routes that facilitate the downslope movement of\udrunoff and associated material during erosion events. Many such slopes host series of small steps, or “terracettes”.\udThe juxtaposition of terracettes against the natural downslope flow path of non-complex slopes leads us to hypothesise\udthat they may influence typical hillslope processes by intercepting or capturing surface runoff. Here we\udreport preliminary results and some tentative conclusions from ongoing work to explore this possibility. Google\udEarth was used to initially identify a ca. 400m2 well-developed terracette system situated on a west-facing slope\udwith gradients ranging from 25 to 40° (46 to 84 %). A digital elevation model (DEM) of the terracettes was\udconstructed using spatial data taken from a relevant section of topographic map. The DEM was then queried\udusing a flow-accumulation algorithm and the results displayed in a geographic information system. The output\uddata provided “proof of concept” that terracettes can capture surface runoff. The generation of empirical data\udfrom a series of rainfall/runoff simulations performed on the same section of terracettes supports this finding.\udResults from both work components indicate that sections of a terracette system may intercept runoff and could\udact as preferential flow pathways. By contrast, some sections appeared to act as depositional sites.We cautiously\udpredict that these areas could act as retention zones for the temporary storage of runoff-associated substances.\udGreater understanding of the exact influence of terracettes on surface hydrology in steep-sloping and subalpine\udenvironments could benefit the future management of grazing and rangelands in such areas

The influence of terracettes on the surface hydrology of steep-sloping and subalpine environments: some preliminary findings