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Trabzon İli ve İlçelerindeki Mera Alanlarındaki Önemli Yabancı Ot Türleri ile Bunların Dağılımları ve Yoğunluklarının Belirlenmesi
(Determination of important weed species, their distributions and densities in grasslands of Trabzon province, Turkey )

Author : Ünal ASAV  İzzet KADIOĞLU Yusuf YANAR  
Type :
Printing Year : 2014
Number : 2014-1
Page : 29-36


Summary
Bu çalışma Trabzon İli mera alanlarında sorun oluşturan önemli yabancı ot türleri, rastlanma sıklığı, genel kaplama alanı ve yoğunluklarını saptamak amacıyla 2008 ve 2009 yıllarında yürütülmüştür. Trabzon’a bağlı Merkez, Akçaabat, Araklı, Çaykara, Dernekpazarı, Hayrat, Köprübaşı, Maçka Sürmene, Tonya, Vakfıkebir ve Yomra olmak üzere 12 ilçede toplam 80 merada 214 örnekleme alanında sürvey gerçekleştirilmiştir. Sürvey alanlarında mera alanının en az %1’ini temsil edecek şekilde tesadüfi örnekleme yapılmıştır. Her örnekleme alanına 1/4 m2’lik çerçeve en az 20 kez atılmıştır. Çerçeveye giren yabancı otlar sayılmış, rastlanma sıklığı, genel kaplama alanı ve yoğunlukları belirlenmiştir. Sürvey yapılan meralarda 1’i Pteridophyta, 4’ü monocotyledonae, 19’u dicotyledonae olmak üzere 24 familyaya ait 48 cins ve 60 yabancı ot türü saptanmıştır. Türlerin çoğunlukla Asteraceae (10 tür), Apiaceae (6 tür), Lamiaceae (6 tür), Scrophulariaceae (5 tür), Liliaceae (4 tür) ve Polygonaceae (3 tür) familyalarına ait oldukları belirlenmiştir. Yapılan sürvey çalışmasında en fazla rastlanan yabancı otlar Alchemilla pseudocartalinica Juz., Pteridium aquilinum (L.) Kuhn, Euphorbia oblongifolia C. Koch, Veratrum album L., Silene vulgaris (Moench) Garcke, Digitalis ferruginea L., Hypericum perforatum L., Conium maculatum L. ve Alchemilla orduensis B . Pawl.’dir.

Turkish Keywords
Mera, sürvey, Trabzon, Alchemilla pseudocartalinica, Pteridium aquilinum, Euphorbia oblongifolia

Abstract
This study was carried out to determination important weed species, the available frequency, common covering and density of weeds in grasslands of Trabzon province in 2008-2009. Surveys were conducted in 214 sampling areas belong to 80 grasslands of Trabzon province (central district, Akçaabat, Araklı, Çaykara, Dernekpazarı, Hayrat, Köprübaşı, Maçka, Sürmene, Tonya, Vakfıkebir and Yomra). The random sampling was made according to representing at least 1% of the areas of grassland. 1/4 m2 were taken in a sampling area at least 20 times. The weeds within the frame were counted, the frequency, common covering and density of weeds were determinated. Sixty weed species and forty eight genus belong to Twenty four families (1 Pteridophyta, 4 Monocotyledonae, 19 Dicotyledonae) were identified in the grasslands surveyed. The most commonly found families were Asteraceae (10 species), Apiaceae (6 species), Lamiaceae (6 species), Scrophulariaceae (5 species), Liliaceae (4 species) ve Polygonaceae (3 species). The most common weed species were Alchemilla pseudocartalinica Juz., Pteridium aquilinum (L.) Kuhn, Euphorbia oblongifolia C. Koch, Veratrum album L., Silene vulgaris (Moench) Garcke, Digitalis ferruginea L., Hypericum perforatum L., Conium maculatum L. and Alchemilla orduensis B . Pawl. in pasture areas surveyed.

Keywords
Grassland, survey, Trabzon, Alchemilla pseudocartalinica, Pteridium aquilinum, Euphorbia oblongifoli

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