The Short-Term Effect of Fire on Vegetation Structure and Soil Physico-chemical Properties in Non-wooded Rangelands of Dorood Faraman

This research was done for determination of the short term effect of fire on vegetation and soil in Dorood Faraman rangelands of Kermanshah Province. The fire was at the beginning of 2012. Two units included control and burned (30 hectare) treatments were selected after one year. Two transect (100m) were recorded toward and inverse the slope. Vegetation and soil sampling was done by systematic-randomly method. The soil sampling was done in 0-15cm soil depth. The 1m2 plot was used for plant sampling. Vegetation characteristics as species name, vegetation percentage, production, palatability, diversity and soil properties including moisture, texture, electrical conductivity, acidity, organic carbon, lime, N, P, and K were obtained. The statistical analysis of variance and mean comparison was performed using T-test in Spss20 software. The relation between vegetation data and soil factors was done by CCA in CANOCO4. The grasses and forbs had showed an increasing and shrubs had decreased in burned area. As palatability factors, classes I species had showed increasing and classes III were decreased (p ... .