The aim of the present work is a description of a multi-year complex field research (hydrological, chemical and geotechnical) carried out in the area of the "Lasy Rychtalskie" Forest Promotion Complex "Lasy Rychtalskie". The work focused on characterizing the present state, forecasting future changes, as well as indicating the stability threats which the areas face. Forest promotion complexes are functional areas of a particular ecological, educational and social significance. The Lasy Rychtalskie Complex is situated within the grounds of the Syców Forest Inspectorate and its name is taken from the section called Rychtal. The area of the forests is famous for its Pinus sylvestris L ecotype, as well as unique genetic values, confirmed by scientific research. The field investigations were carried out on the marshlands of the forests in focus. Three experimental plots, microcatchments and 6 transects transverse to the forests roads, situated either within the area of the catchments or in their close neighbourhood, were selected for the detailed research. The selected catchments are situated on the marshlands. 51 groundwater measurement wells, alongside with 3 Thomson overflows situated on watercourses were installed on the experimental plots. Soil samples were collected from all drillings for standard laboratory tests of mechanical, ...
