List of Articles Environmental gradient Open Access Article Abstract Page Full-Text 1 - Investigation of distribution of Aeluropus littoralis in Exclusion and grazed areas inthe saline and alkaline rangelands of Golestan province amin mahmodian Majid Akherian mohamad naser taher Open Access Article Abstract Page Full-Text 2 - Spatial changes of soil fertility factors in pure shrublands of the central plateau of Iran Nafiseh Roohollahi seyed akbar javadi Mohamad Jafary محمدعلی زارع چاهوکی