Effects of land use shape and some soil properties on organic matter content

Öz

In this study, the dependence of soil organic matter on some soil properties and land use type was investigated in areas under sunflower, wheat, vegetable, orchard, sugar beet, meadow, pasture and alfalfa crops in Turhal Turkey. Soil samples were taken from twenty-four plots under eight different land uses and from 0-20 cm depth. Soils ranged from coarse to fine in texture and organic matter content ranged from 1.13% to 2.97%. The data obtained show that soil particle size distribution, crop management practices and basic soil properties have an effect on organic matter content. The lowest mean organic matter content value was determined in sugar beet production areas (1.13%) while the highest organic matter content values were determined in soils where alfalfa were grown (2.97%). Correlations between the analyzed parameters were tested using Pearson correlation method. Significant relationships were found between organic matter content values and some soil parameters used in the evaluation of structural stability and susceptibility to erosion.

Anahtar Kelimeler

• Organic matter
• land use
• soil particle size
• soil properties

Arazi kullanım şekli ve bazı toprak özelliklerinin organik madde içeriğine etkileri

Öz

Bu çalışma Turhal'da ayçiçeği, buğday, sebze, meyve bahçesi, şeker pancarı, çayır, mera ve yonca ekilen alanlarda toprak organik maddesinin bazı toprak özelliklerine ve arazi kullanım türüne bağımlılığı araştırılmıştır. Toprak örnekleri sekiz farklı arazi kullanımı altındaki yirmi dört parselden ve 0-20 cm derinlikten alınmıştır. Topraklar tekstür bakımından kabadan inceye doğru değişen bir aralıkta yer almakta olup organik madde içerikleri %1.13 ile %2.97 arasında değişmektedir. Elde edilen veriler parçacık büyüklüğü dağılımı, ürün yönetimi uygulamaları ve temel toprak özelliklerinin organik madde içeriği üzerinde etkili olduğunu göstermektedir. En düşük ortalama organik madde içeriği değeri şeker pancarı üretim alanlarında (%1.13), en yüksek organik madde içeriği değerleri ise yonca yetiştirilen topraklarda (%2.97) belirlenmiştir. Analiz edilen parametreler arasındaki korelasyonlar Pearson korelasyon yöntemi kullanılarak test edilmiştir. Organik madde içeriği değerleri ile yapısal stabilite ve erozyona karşı duyarlılığın değerlendirilmesinde kullanılan bazı toprak parametreleri arasında önemli ilişkiler bulunmuştur.

Anahtar Kelimeler

• Organik madde
• arazi kullanım şekli
• toprak tekstürü
• toprak özellikleri.

Kaynakça

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