University of Tehran Press Desert 2008-0875 17 3 2012 12 01 Effect of Livestock Grazing on Growth Characteristics of Atriplex Canescens 290 303 35262 10.22059/jdesert.2013.35262 EN A. Mohebby Ph.D Graduate, Research Institute of Forests and Rangelands (RIFR),Tehran, Iran M. Jafari Professor, Faculty of Natural Resources, University of Tehran, Karaj, Iran A. Tavili Associate Professor, Faculty of Natural Resources, University of Tehran, Karaj, Iran S.A. Javadi Assistant Professor, Science and Research Branch, Islamic Azad University, Tehran, Iran E. Zandi Esfahan Assistant Professor, Research Institute of Forests and Rangelands (RIFR),Tehran, Iran M. Ramezani Member of Scientific Board, Islamic Azad University, Science and Research Branch, Tehran, Iran Journal Article 2012 03 05 It has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual of the even-aged Atriplex canescens , by comparing two sites (grazed and non-grazed) across Zarand, Shahreiar rangelands located in the southwestern of Tehran, Iran. For this purpose, by using systematicrandom sampling method, four 300 m long transects were set up in each sampling area and ten quadrats were randomly assigned per transect [8] to measure the stem height as well as the crown cover, production, basal diameter, stem biomass, litter, leaf-stem index , seed production per individual and root biomass and diameter were measured at 3 soil depth (0-30, 30-70, >70 cm) with 4 replications within each of the two studied sites, results indicated that, grazing had no significantinfluence on stem height and leaf-stem index but crown cover, production, basal diameter, stem biomass, litter, seed production per individual, root weight and diameter of the even -aged Atriplex canescens were significantly greater than those of the un-grazed site. https://jdesert.ut.ac.ir/article_35262_f264a0cebbf3660388483d4172c6513b.pdf