Toprak organik karbonu: jeoistatistiksel bir yaklaşım

Öz

Bu çalışmada; Rusya’da Batı Urallar olarak adlandırılan Perm Bölgesi’nde Perm Devlet Tarım Akademisi arazilerinden toprak işlemeli tarım yapılan bir arazide toprak organik karbonunun (SOC) uzaysal değişkenliğini değerlendirmek üzere jeoistatistiksel teknikler uygulanmıştır. Yaklaşık 2,35 ha büyüklüğündeki bu arazi 25x25 m aralıklarla karelere bölünmüş ve 0,20 m derinlikten 51 adet toprak örneği toplanmıştır. Çalışma alanının topraklarında, toprak reaksiyonu (pH) en az değişkenlik gösteren özellik iken; değişebilir potasyum (Ex-K) en fazla değişkenlik gösteren toprak özelliği olmuştur. Yine bu alanda toprak organik karbonunun uzaysal değişimini modellemek üzere etki mesafesi 151,04 m olan Gaussian model seçilmiştir

Anahtar Kelimeler

• Toprak organik karbonu, uzaysal değişkenlik, alana özgü yönetim

Soil organic carbon : A geostatistical approach

Öz

In present study, geostatistical techniques was applied to assess the spatial variability of soil organic carbon content (SOC) in the tillaged layer in a Perm State Agricultural Academy Farm site in Perm region, West Urals, Russia. A 250x100 m plot (approximately 2.35 ha) was divided into grids with 25x25 m spacing that included 51 sampling points from 0-0.2 m in depth. Soil reaction (pH) was the least variable property while the Ex-K was the most variable. The range of influence occurred for SOC was 151.04 m

Anahtar Kelimeler

• Soil organic carbon, spatial variability, site specific management

Kaynakça

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