جامعه‌‌شناسی گیاهی منطقه حفاظت‌شده پارک دالاب در استان ایلام

نوع مقاله: علمی- پژوهشی

نویسندگان

1 استادیار، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان مرکزی، سازمان تحقیقات، آموزش و ترویج کشاورزی، اراک، ایران

2 دانشیار، مؤسسه تحقیقات جنگل‌ها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

3 دانشیار، گروه علوم جنگل، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایران

4 مربی، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان ایلام، سازمان تحقیقات، آموزش و ترویج کشاورزی، ایلام، ایران

چکیده

در دانش بوم‌شناسی، مطالعه جوامع گیاهی و تجزیه و تحلیل روابط بین گیاهان و عوامل محیطی حائز اهمیت فراوانی است. در این رابطه، پوشش گیاهی پارک دالاب در منطقه حفاظت‌شده مانشت و قلارنگ در استان ایلام با استفاده از روش براون- بلانکه مطالعه شد. داده‌‌های جامعه‌‌شناسی از 44 قطعه‌نمونه جمع‌‌آوری شد. برای رسته‌‌بندی از روش تجزیه و تحلیل ارتباط‌‌های عاملی و برای طبقه‌‌بندی از روش تحلیل خوشه‌‌بندی استفاده شد. نتایج تحلیل‌‌های جدولی جامعه‌‌شناختی به‌روش براون- بلانکه منجر به معرفی جوامع Teucrio polii-Quercetum brantii، Aceri monspesulani-Quercetum brantii، Quercetum brantii، Acantholimono blakelochkii-Astragaletum veri و Celtido tournefortii-Aceretum monspesulani در منطقه مورد مطالعه شد. این جوامع گیاهی به راسته Quercetalia persicae و رده Quercetea persicae تعلق دارند. تجزیه و تحلیل متغیرهای محیطی در جوامع گیاهی نشان داد که عوامل خاکی (درصد رس و شن، درصد آهک، فسفر، پتاسیم و اسیدیته)، عوامل توپوگرافی (ارتفاع از سطح دریا و درصد شیب) و نیز درصد پوشش تاجی طبقه‌های فوقانی جنگل، در پراکنش جوامع گیاهی در منطقه مؤثر بودند.

کلیدواژه‌ها


عنوان مقاله [English]

Phytosociological study of Dalab Park protected area in Ilam

نویسندگان [English]

  • Hamid Reza Mirdavoudi 1
  • Yunes Asri 2
  • Jafar Hosseinzadeh 3
  • Mashaallah Mohamadpour 4
1 Assistant Prof., Research Division of Natural Resources, Markazi Agricultural and Natural Resources Research and Education Center, AREEO, Arak, Iran
2 Associate Prof., Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
3 Associate Prof., Department of Forest Science, Faculty of Agriculture, Ilam University, Ilam, Iran
4 Senior Research Expert, Research Division of Natural Resources, Ilam Agricultural and Natural Resources Research and Education Center, AREEO, Ilam, Iran
چکیده [English]

   Study of plant communities and analysis of the relationship between plants and environmental factors has always been considered as a fundamental issue in ecological studies. The vegetation of Dalab Park in the protected area of Manesht and Qalarang in Ilam province was studied using the Braun-Blanquet method. The study of the plant communities was carried out based on 44 phytosociological relevés. Data collection was analyzed by Factorielle Correspondence Analysis (FCA) and Cluster Analysis (CA) methods. In general, there were five different plant associations, including: Teucrio polii-Quercetum brantii, Aceri monspesulani-Quercetum brantii, Quercetum brantii, Acantholimono blakelochkii-Astragaletum veri and Celtido tournefortii-Aceretum monspesulani. These plant associations belong to Quercetea persica class and Quercetalia persica order. Analysis of environmental variables in vegetation communities showed that soil factors (clay%, sand%, T.N.V%, phosphorus, potassium and pH), topographic factors (altitude and percentage of slope), as well as the percentage of cover in the overstory of the forest were explained most variation in plant communities in this area.

کلیدواژه‌ها [English]

  • Braun-Blanquet
  • ecological factors
  • oak forests
  • Zagros Mountains

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