The Piosphere Effects of Livestock Grazing on Rangeland Vegetation in Ahir Mountain of Kahramanmaras Region

Yıl 2017, Cilt: 23 Sayı: 2, 260 - 267, 01.03.2017

Mahmut Reis Nurşen Şen

Öz

Excessive grazing pressure on rangeland vegetation reduces the basal area value of vegetation and also changes the botanic composition. This study examined the piosphere effects of livestock grazing on rangeland vegetation based on distance from a natural water source. The piosphere effects were evaluated around Karagöl Lake, which is a natural water-source in Mediterranean region of Turkey. The changes in vegetation were determined within three different sites where sample plots were located at 0-1000 m, 1000-3000 m and 3000-5000 m away from the lake. The mean values of basal area in the study area were 10.71%, 14.46%, and 22.16% for three sites, respectively. The average oven-dry hay yield was 639.0 kg ha-1, 1542.9 kg ha-1, and 2146.3 kg ha-1, respectively. The vegetation similarity indices of the sites indicated that the botanic composition changed with respect to increasing distance from the lake. The lowest similarity index was encountered between the site one and site three 30.31%

Anahtar Kelimeler

Piosphere, Rangeland, Basal area, Hay yield, Botanic composition

Kahramanmaraş Yöresi Ahır Dağı Meralarında Piospher’in Vejetasyon Yapısı Üzerindeki Etkileri

Öz

Mera vejetasyonları üzerinde oluşan aşırı otlatma baskısı, vejetasyonun bitki ile kaplı alan değerinin azalmasına ve botanik kompozisyonun değişmesine neden olmaktadır. Yapılan bu araştırmada Türkiye’nin Akdeniz bölgesinde yer alan, doğal su kaynaklarından biri olan Karagöl gölüne olan mesafeye göre piosferin vejetasyon üzerindeki etkileri incelenmiştir. Bunun için çalışma alanında yer alan doğal su kaynaklarından biri olan Karagöl gölünün piosfer etkisi araştırılmıştır. Vejetasyonda meydana gelen değişiklikler Karagöl gölü çevresinden 0-1000 m, 1000-3000 m ve 3000-5000 m uzaklıkta seçilen üç deneme alanı alınarak belirlenmiştir. Araştırma alanında ortalama bitki ile kaplı alan değerleri sırasıyla % 10.71, % 14.46 ve % 22.16 olarak belirlenmiştir. Göl çevresinde ortalama fırın kurusu ot

Anahtar Kelimeler

Piosfer, Mera, Bitki ile kaplı alan, Ot verimi, Botanik kompozisyon

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