Afforestation effect with conifer and hard wood species on some physical and chemical soil characteristics.

摘要

This study compared the pure Pinus taeda and blended local conifer afforestations on some soil characteristics in Azbarm Siyahkal area in Iran. Soil sample taking method was random-systematic and 12 blended samples from hardwood afforestation and 12 blended samples also from conifer afforestion were prepared from the depth of 0 to 30 cm and were transfared to the laboratory to determine the physical and chemical parameters (including: soil tissue, special apparent and superficial mass, pH, electrical conductivity, soil saturation humidity percentage, nitrogen, phosphor, potassium, calcium) the results showed that the amount of humidity saturation percentage, Carbon ratio to nitrogen and phospher among pinus teada species, Acer insigne and Alnus substrata and Quercus castaneifolia at the confidence level of 95% is significant the humidity saturation percentage and phospher in hardwood stand was more in comparison with conifer and Carbon ratio to nitrogen in hardwood stand was less in comparison with conifer.