TY - JOUR T1 - Vegetation Classification of Darabkola Forest and Their Relation to Physiographic Factors TT - طبقه‌بندی جوامع گیاهی و ارتباط آنها با عوامل فیزیوگرافیک در جنگل دارابکلای استان مازندران JF - IJAE JO - IJAE VL - 10 IS - 3 UR - http://ijae.iut.ac.ir/article-1-1069-en.html Y1 - 2021 SP - 17 EP - 33 KW - Vegetation Classification KW - Modified TWINSPAN KW - Braun-Blnquet method KW - Darabkola forest N2 - This study focused on vegetation classification of Darabkola forest in the middle part of Hyrcanian forests in north of Iran. For this purpose, 139 releves were sampled using systematic- selective method in 400 m grid dimensions by the consideration of indicator stands concept. Based on modified TWINSPAN method and Braun-Blanquet phytosociological method, five associations (Parrotio persicae-Carpinetum betuli, Zelkovo carpinifoliae-Quercetum, Solano kieseritzkii-Fagetum orientalis, Aceri velutini-Parrotietum persicae and Euphorbio amygdaloidae-Fagetum orientale) and four sub-associations (Zelkovo carpinifoliae-Quercetum castaneifoliae subasso a typical subasso Quercetosum, Zelkovo carpinifoliae-Quercetum castaneifoliae subasso Fagetosum orientale, Aceri velutini-Parrotietum persicae subasso Carpinetusum betuli and Aceri velutini-Parrotietum persicae subasso Pteroetosum fraxinifoliae) were distinguished. Demonstration of plant communities along the first two axes of detrended correspondence analysis (DCA) showed that these associations had almost distinct pattern. Also, results of multiple regression of topographic factors with the two first ordination axes of DCA indicated that elevation was the most important topographic factor in distribution of the associations in the Darabkola forests. In addition, the results of this study can lead to the more efficient management and better protection of Darbakla forest. M3 10.47176/ijae.10.3.13521 ER -