evaluation of enclosure effects on soil carbon storage (case study: rangeland of shahtappeh-chah mahmood and chiro in semnan province)

livestock grazing is one of the most important kinds of land usage that has a high potential to decrease or increase carbon storage in rangeland ecosystem. this research was investigated the effects of enclosure on soil carbon storage in a rangeland with dominant plants of artemisia aucheri. hence, two rangelands of enclosure (shahtappeh-chah mahmood) and no enclosure (chiro) were chosen in semnan province, iran. for soil sampling, 20 plots of 1x1 m2 along with two vertical transects with 100 m length were used in each region. then, two profiles were dug in 0-15 and 15-30 cm depths in soil of baseline and inter-path of plants in each plot. data were collected for ph, ec, caco3, saturation moisture, soil texture, organic carbon (oc%) and s organic matter (om%), soil bulk density and soil carbon storage and the mean was compared by t-test. the results showed that there was a significant difference (p