Low-cost Terrestrial Photogrammetry as a Tool for a Sample-Based Assessment of Soil Roughness Preiswerte terrestrische Photogrammetrie als Werkzeug zur Bestimmung der Rauigkeit von Böden

Abstract

as soil surface roughness indices, which are also important for other environmental applications (MARZAHN et al. 2012). A broad range of indices were defined for describing the roughness of soil surfaces, e.g. the roughness indices by TACONET & CIARLETTI (2007), PLANCHON et al. (2002), ALLMARAS et al. (1966) or LINDEN & VAN DOREN (1986). Such indices are needed for the calculation of soil erosion with erosion models (RENARD et al. 1997). To calculate those indices, threedimensional data of the soil surfaces is needed. Additionally, the dynamic of soil surfaces (changes) has to be assessed. It is a big challenge for soil scientists to get significant information on all kinds of soils and their development due to the diversity of soils on local level