Abstract:
This bundle presents the results of two theses. The theses concern soil types and soil genesis, on the
ignimbrites of the Bagaces Formation in Guanacaste, Costa Rica. This formation occupies an area of
about fifteen percent of the province Guanacaste, and is located along the Guanacaste cordillera.
The first thesis (1995) concerns a soil mapping project on a part of the formation, carried out in the
experimental station for reforestation ‘Horizontes' (Sector Horizontes), sub-area of ‘Guanacaste
Conservation Area’.
The second thesis ( 1996), concerns soil genesis on the ignimbrites; a study on the physical aspects. The
study was carried out in Sector Horizontes, national park Lomas Barbudal and in the area around the
primary irrigation channel between Bagaces and Canas.
In a short introduction in the chapters dealing with the studies, the aims of the researches can be found.
In the next chapter, an introduction is given on the geology of the area. Special
^ attention will be given
at the nature and deposition of ignimbrite. In addition, tectonic movements and topography will be dealt
with. In chapter three a general introduction on the climate, followed by a discussion of the
meteorological data of the study areas, is given. Chapter four discusses the soil mapping project, whereas
chapters five discusses several aspects of soil genesis. The last two chapters start with a short
introduction on how the researches were set up and executed.
A study on the chemical aspects of soil genesis on ignimbrites, has been carried out, but could not be
completed. Therefore, these aspects are not dealt with in this bundle. The preliminary results of these
chemical analysis done, can be found in a separate report.
