Bitki örtüsü-rüzgâr erozyonu ilişkileri: Bir durum çalışması

Öz

Diğer canlılar için her bakımdan vazgeçilmez olan bitkiler, üzerinde büyüyüp beslendiği cansız toprak için de vazgeçilmez bir canlı türüdür. Bitki örtüsünden yoksun bir toprak hem kendisi hem de içinde barındırdığı pek çok hayvan türleri açısından savunmasız durumdadır. Bitki örtüsü ile rüzgâr erozyon süreçleri arasındaki ilişkinin araştırıldığı bu çalışmada Iğdır-Aralık’ta yer alan, Türkiye’nin ikinci büyük rüzgâr erozyon sahasının koruma çalışmaları yapılmış ve korumasız bölümlerinden farklı şekillerde 57 toprak örneği alınmıştır. Alınan örnekler üzerinde yürütülen fiziksel ve kimyasal analizlerde tekstür, kireç, pH, agregat stabilitesi, organik madde ve elektriksel iletkenlik değerleri; kuru elemelerde 2 mm, 1 mm, 0.84 mm, 0.42 mm, 0.106 mm, 0.020 mm ve <0.020 mm değerleri belirlenmiştir. Duncan çoklu karşılaştırma testi sonuçlarına göre elde edilen verilerin büyük bir çoğunluğu istatistiksel olarak önemsiz bulunmuştur. Bu sonuçlar çalışma alanında bitki örtü yüzdesinin ve koruma önlemlerinin yetersiz olduğunu ortaya koymuştur.

Anahtar Kelimeler

• Bitki örtüsü ev yüzdesi
• Rüzgar erozyonu
• Aşınabilir agregatlar
• Iğdır-Aralık

Vegetation cover-wind erosion correlation: A case study

Abstract

Plants, indispensable in all respects for other living things, are also indispensable for the inanimate soil on which they grow and feed. A land devoid of vegetation is vulnerable both in terms of itself and the many animal species living there. In this study the relationship between vegetation cover and wind erosion processes was investigated. A total of 57 soil samples were taken in different ways from areas protected and unprotected from wind erosion in Igdir-Aralik, which is the second largest wind erosion area in Turkey. For physical and chemical analyses of the samples, texture, carbonate, pH, aggregate stability, organic matter and electrical conductivity values were determined after dry sieving with 2 mm, 1 mm, 0.84 mm, 0.42 mm, 0.106 mm, 0.020 mm and <0.020 mm sieve values. According to Duncan multiple comparison test results, most of the data were found to be statistically insignificant. These results revealed that the percentage of vegetation cover and conservation practices in study area are insufficient.

Keywords

• Vegetation cover and percentage
• Wind erosion
• Erodible aggregates
• Iğdır-Aralık

Kaynakça

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