The nitrogen mineralization in pure and mixed scoth pine stands at different ages and in meadowy land in Tutunculer region Artvin

With this study, the stands are defined by prestudying about stands of the region in September 2010 for setting ground for sample grounds. The soil which was taken from spruce-scotch pine stand, young scotch pine stand, old scotch pine stand in Tütüncüler region Artvin and beside meadowy land at dept stage in 0-15 cm, set ground for samples. 3 sampling lands were chosen from each vegetation cover, and 3 soil samplings were done in chosen sampling lands. Soil sampling were done by 15x15x15 cm cube steel cylinder. It has the aim of examining relations between different researches and soil texture (%), its pH, the quantity of organic substances (%-kg/ha), its maximum water holding capacity (%) and the diversity of mineral nitrogen (kg/ha), net mineral nitrogen (kg/ha) and total nitrogen (kg/ha) in young scotch pine stand, old scotch pine stand, spruce-scotch pine stand and in meadowy land in Tütüncüler region, Artvin. In terms of the average values, the highest values are respectively; while the amount of sand (%) has been found in meadowy land, the amount of clay (%) has been found in spruce-scotch pine stand and the dust content (%) has been found in young scotch pine stand; while soil pH and water holding capacity (% MSK) has been found in young scotch pine stand, the organic substance of soil (%-kg/ha) has been found in meadowy land and total nitrogen (%-kg/ha) has been found in spruce-scotch pine stand. The highest average net NH4+-N value, has been found in young scotch pine stand on 21st. day, in meadowy land on 42nd. day and in old scotch pine stand on 63rd.day. The highest average net NO3--N value, has been found in spruce-scotch pine stand on 21st.day, in meadowy land on 42nd.and 63rd. day. The highest average net NH4+-N+ NO3--N value, has been found in young scotch pine stand on 21st. day, in old scotch pine stand on 42nd. day and in meadowy land on 63rd. day.Key Words: Soil Texture, pH, Water Holding Capacity, Organic Substance, Total Nitrogen, Net Mineral Nitrogen.