UAS PHOTOGRAMMETRY OF HUMAN-INDUCED SOIL DEGRADATION IN THE NANO-BASIN 9 LA MESA, ACAXOCHITLÁN, HIDALGO, MEXICO

Abstract

Unlike traditional photogrammetry, the technique of photogrammetry through unmanned aerial systems (UAS) allows
the fast generation of information and its processing. Due to the fact that in Mexico a significant part of the surface
presents irregular relief, the UAS technology becomes important for the fast and efficient quantification of
degraded areas. In this study the orthomosaic and Digital Surface Model (DSM) were generated with
the objective of zoning the types of human-induced soil degradation modified for the nano-basin
9 La Mesa, Acaxochitlán, which belongs to the sub-basin of the San Marcos River (RH27Cb)
through UAS photogrammetry. It was found that the largest surface
area with degradation is located in agricultural and grassland land
use. It was also found that it is possible to define areas with
degradation in greater detail, as well as to identify processes
of land use change through photointerpretation of georeferenced
orthomosaics.