مطالعه فلور، اشکال زیستی و پراکنش جغرافیایی پوشش‌گیاهی و بانک بذر خاک منطقه حفاظت‌شدة مانشت و قلارنگ در استان ایلام

نوع مقاله: مقاله پژوهشی

نویسندگان

1 استادیار گروه علوم جنگل، دانشکده کشاورزی، دانشگاه ایلام

2 دانشکده کشاورزی، دانشگاه ایلام

چکیده

این مطالعه با هدف بررسی فلور پوشش گیاهی و بانک بذر خاک در منطقه حفاظت­شده مانشت و قلارنگ در استان ایلام انجام شد. مطالعه پوشش­گیاهی به­روش رولوه و بانک بذر خاک به­روش پیدایش نهال انجام شد. بر اساس نتایج در مجموع 192 گونه گیاهی متعلق به 38 تیره و 131 جنس در منطقه مورد مطالعه در پوشش و بانک بذر خاک ثبت شد که از این گونه­ها 67 گونه در هر دو بخش بانک بذر خاک و پوشش گیاهی مشترک بودند و 13 و 112 گونه به­ترتیب تنها در بانک بذر خاک یا پوشش گیاهی یافت شد. در پوشش گیاهی 179 گونه متعلق به 125 جنس و 36 تیره ثبت شد. تیره­های Asteraceae و Poaceae  غالب­ترین تیره­ها از نظر تعداد گونه بودند. شکل­زیستی غالب در بانک بذر خاک و پوشش گیاهی به­ترتیب تروفیت­ها (42 درصد) و همی کریپتوفیت­ها (48 درصد) بودند. از نظر پراکنش جغرافیایی در هر دو بخش بانک بذر خاک و پوشش گیاهی بیش­ترین سهم فلور متعلق به عناصر ناحیه رویشی ایران – تورانی بودند. شکل رویشی غالب در بانک بذر خاک شامل فرم رویشی یک­ساله علفی با 40 درصد (32 گونه) و فرم رویشی چندساله علفی (5/32 درصد) و در پوشش­گیاهی شامل چند­ساله علفی (6/48 درصد) و یک­ساله علفی (1/25 درصد) بود.

کلیدواژه‌ها


عنوان مقاله [English]

Study of flora, life forms and chorology of vegetation and soil seed bank of Manesht and Qalarang protected area in Ilam province

نویسندگان [English]

  • Mahdi Heidari 1
  • Mostafa Naderi 2
چکیده [English]

This study was carried out in Manesht and Qalarang protected area in Ilam province to study the flora of vegetation and soil seed bank. The study of vegetation was carried out with releve method and the soil seed bank was estimated using the seedling emergence method. In total, 192 plant species belonging to 38 families and 131 genera were identified, of which 67 species were common in both seed bank and vegetation and 13 and 112 were found only in the seed bank or in the vegetation, respectively. The vegetation of the study area was represented by 179 species, belonging to 125 genera and 36 families. The Asteraceae and Poaceae were the most dominant families in terms of number of species. The soil seed bank included fewer taxa: 80 species belonging to 63 genera and 26 families, respectively. The Asteraceae, Boraginaceae and Papilionaceae were the most dominant families in terms of number of species in the soil seed bank. The dominant life form in the soil seed bank and vegetation were Therophytes (42 %) and Hemicryptophytes (48 %) respectively. From the chorological point of view in both the soil seed bank and vegetation the largest proportion of the flora belongs to the Irano-Turanian (68.7 %) elements. The dominant growth forms in the soil seed bank included herbaceous annual (40 %), herbaceous perennial (32.5 %) and in the above-ground vegetation included herbaceous perennial (48.6 %) and herbaceous annual (25.1 %).

کلیدواژه‌ها [English]

  • Soil seed bank
  • Vegetation
  • Flora
  • Protected area
  • Ilam Province
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