摘要:Landslide Spatial Distribution Analysis Using GIS. Case Study
Secașelor Plateau. Landslides represent an extremely frequent geomorphological
phenomenon in the Secașelor Plateau. The regional unit is located in the SouthEastern
part of the Transylvanian Basin (large basin within the Carpathian
Mountains). In this paper, we analyzed the distribution of the landslides through
spatial statistics techniques and GIS. In order to analyze the distribution of the
landslides we took into consideration 5 criteria: geology, height, slope, exposition
and the territorial administrative units. This type of study is necessary to find out
the way in which the actual landslides are distributed and on the other hand, the
research will collect information on the susceptible fields which are favored by
these geomorphological processes. After the visual analysis of the area using the
1:5000 aerial photography and topographic maps, 835 landslides were identified
and vectorized. At the level of administrative-territorial units, these cover mostly
agricultural areas. Given the lithological conditions (the presence of friable rocks
of marl, clay and poorly cemented sands) and the land use (mostly agricultural) it
can be said that in the future new landslides will ocure in similar conditions of
slope, exposition and geological characteristic etc. The identification of areas that
are susceptible to landslides is beneficial for the future territorial planning actions
and also to avoid building on areas which are prone to landslides.