Construction of stem volume tables for stone pine (Pinus pinea L.) stands in İzmir Regional Directorate of Forestry
نویسندگان
چکیده
Bu çalışmada İzmir Orman Bölge Müdürlüğü (OBM) sınırları içinde kullanılmak üzere, varlığı ve ekonomik değeri ile önemli bir orman ağacı türü olan fıstıkçamı (Pinus pinea L.)’nın tek çift girişli dikili kabuklu gövde hacim tabloları düzenlenmiştir. amaçla, OBM genelinde 275 adet örnek ağaçta ölçü yapılarak gerekli veri elde edilmiştir. Ağaçların 44’ü kontrol, 231’i model geliştirme grubu olarak ayrılmıştır. En uygun için modellerin belirlenmesinde Ortalama Hata, Mutlak Hataların Standart Sapması, Açıklanan Varyans Yüzdesi, Toplam Hata Yüzdesi (Vasati) Ayrılış gibi başarı ölçütleri yanında artık değerlerin analizlerinden yararlanılmıştır. Seçilen modellerinin, α=0,05 anlam düzeyinde ormanlarında kullanımlarının olduğu anlaşılmıştır. “logV=β0+β1*logd+β2*(logd)4+β3*(1/d)”, ise “logV=β0+β1*log(d2h)+β2*(1/(h+6))2+β3*(1/dh)” denklemleriyle
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ژورنال
عنوان ژورنال: Ormanc?l?k ara?t?rma dergisi
سال: 2021
ISSN: ['2149-0775', '2149-0783']
DOI: https://doi.org/10.17568/ogmoad.813362