شناسايي گروه هاي اكولوژيك گياهي و ارتباط آنها با ويژگي هاي خاك در جنگل جلگه اي كلارآباد (چالوس )

An Acquaintance with the Relationship between Plant Ecological Groups and the Soil Characteristics in a Kelarabad Plain Forest(Chaloos)

In Kelarabad plain forest with an area of 59.39 ha, information and data about vegetation (herbs and bearing seedling species) were collected from 77 sample plots (20mx20m) which were then analyzed by using Bran-Blanquet combined scale and through use of TWINSPAN program. The data were classified to determine 4 ecological groups. Some physical,chemical and biological characteristics of soil, such as texture, SP, EC, TNV, %OC, N, P, K, pH, CEC, and earth worm biomass were determined. By, use of PCA analysis, the correlationship as well as distribution in each ecological group of environmental factors were determined with respect to the 1st