List of Articles ارتفاعات Open Access Article Abstract Page Full-Text 1 - Effect of deadwoods on plant diversity in forest ecosystems in Jisa and Shahrestan Region, Mazandaran Province Farshad Keivan-Behjo Zeynab Pour-Gholi Jamshid Sanaee Open Access Article Abstract Page Full-Text 2 - Survey on fresh water Gammarus (Gammarus fasciatus) population and its relationship with non-biotic factor in Lakanshahr stream (Rasht, Iran) Masoud Moosapour Hamid Allaf Noverian Fariborz Sayyad Oghly Open Access Article Abstract Page Full-Text 3 - Investigation of anions and heavy metals in surface and ground water quality in villages around Darallu copper mine Fereshteh Hasanzadeh Mahmoud shamsaddini Open Access Article Abstract Page Full-Text 4 - Effect of altitude and different phonological stages on essential composition and antioxidant activity of Ferula angulata (Schlecht.) Boiss from Dena altitudes Bahman Hosseini Hamedeh Nikhkhah Amirabad Mohammad Fattah Yort Gosta Open Access Article Abstract Page Full-Text 5 - Water quality of Darakeh River by emphasis on physical and chemical parameters F. Farivar M. Mousavi Nadoshani F. Dolatshahi S. M. T. Sadatipour