Floristic survey of weeds and rangeland plants in Khalatposhan station of Tabriz county – JBES

Rangelands PlantsElham Abbasvand, Jalil Shafagh-Kolvanagh, Sirous Hassannejad

Department of Plant Eco-Physiology, University of Tabriz, Iran

Key words: Cluster Analysis, Rangelands Plants, Weeds, TWINSPAN.


In order to ordination of weeds and rangeland plants, investigations were done in Khalatposhan rangeland of Tabriz county in 2013. Vegetation in each section was sampled by 176 plots (0.5 m × 0. 5 m) in grid method (20 m × 40 m). Data of presence and absence plants in different sections were analyzed through two-way indicator species analysis (TWINSPAN) and cluster analysis (CA). One hundred species (83 Dicotyledonous and 17 monocotyledonous) belonging to 75 genera and 20 families were recorded along 176 stands in Khalatposhan rangeland. Rangelands Plants,Asteraceae had the highest contribution (23% of the recorded species), followed by Poaceae (13%) and Papilionaceae (12%). TWINSPAN analysis showed that sections 5 and 7 had similar species such as Artemisia sp., Atrriplex tatarica, Capsella bursa-pastoris, Xeranthemum squarrosum and some others. Lepidium vesicarium and Verbascum nudicaule were observed in sections 5, 6, and 7. CA showed that in 50% similarity, four sections were separate, also sections 5 and 7 were located in the same group, and confirmed TWINSPAN results. In high level of this classified, separation is precisely and analysis of sampling units will be correctly. In 100% similarity, sections 3 and 4 were located in one group and had maximum similarity (43 species observed in these two sections).

jbes-vol4no6-p225-230Get the original articles in Source: Volume 4, Number 6, June 2014 – JBES

Journal Name: International Network for Natural Sciences

Published By: International Network for Natural Sciences

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