نوع مقاله: مقاله پژوهشی
نویسندگان
1 عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اردبیل، دانشجوی دورۀ دکتری موسسۀ تحقیقات گیاه‌شناسی آکادمی ملی علوم آذربایجان.
2 استاد پژوهش موسسۀ تحقیقات جنگل‌ها و مراتع ایران.
3 استاد پژوهش موسسۀ گیاه‌شناسی آکادمی ملی علوم جمهوری آذربایجان
4 دانشیار گروه زیست شناسی، دانشکده علوم پایه، دانشگاه مازندران، بابلسر
5 استادیارگروه گشاورزی و گیاهان دارویی دانشگاه اسلامی آزاد اسلامی واحد اردبیل
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
The current study aims to ordinate ecological groups in the wetlands of northern and eastern slopes of the Sabalan mountain and investigate their relationship with environmental variables. The location of wetlands was found using field surveys and satellite images. In total, 32 wetland sites were identified for the sampling purpose. 320 sample plots (relevé) were selected using the systematic-rondom method and their plants were classified using the TWINSPAN method. The study of vegetation cover was undertaken using the Braun-Blanquet method. The results showed that five main groups of vegetation could be distinguished, which include (i) halophyte ecological groups, (ii) mire ecological groups, (iii) wet meadows ecological groups, (iv) grass- legume ecological groups and (v) aquatic and heliophyte ecological groups. The statistical analysis showed that there were significant differences between plant groups and altitude, canopy cover percentage, pH, OC% and geophytes plant percentage at 1 and 5 percent significance level. The results of ordination (DCA) also showed that main environmental factors affecting plant groups were soil characteristics (EC, pH, dependent cations), land form, humidity and altitude.
کلیدواژه‌ها [English]
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