Abstract: This research was carried out in Dagdami river catchment located in the highlands of the Black sea region of Turkey. The
objective of this study was to investigate the effects of representative land-use and land-cover types of largely deforested areas of Black
sea region on soil properties. We measured these effects by quantifying some soil analyses were done on soil samples were taken at two
depths (0-5 and 5-15 cm) and two aspects (N and S). According to the results of statistical analysis, satured hydraulic conductivity (Ksat ),
bulk density (BD), water stable aggregates (WSA), soil organic matter (SOM), soil organic carbon (SOC) and total nitrogen significantly
change with land use type and aspect. Results have shown significantly higher values of saturated hydraulic conductivity (Ksat ) in natural
forest top soil (82.4 cm3.h-1 on average) compared to grasslands soils (8.4 cm3 h-1) and hazelnut garden soils (11.5 cm3 h-1) and corn field
soils (30.0 cm3.h-1). It was determined that WSA was greater in the pasture and forest soils than in cultivated soils. In addition, Ksat was
found the highest value in the forest soils at all aspects while, SOM and SOC of forest soils are higher than other land use types. On the
other hand, amount of SOM and SOC of soils of grassland, hazelnut garden and corn field are low level and close to each other. Soils under
hazelnut garden (1.1 g cm-3) and grassland (1.1 g cm-3) have higher bulk density than the adjacent soils under forests (0.7 g cm-3) and corn
field (1.0 g cm-3) for two different aspects. Furthermore, after long term continuous cultivation of the natural forest soil, it was determined
that some physical and chemical characteristics of it has been significantly changed