Farklı Debi ve Eğim Koşullarının Parmak Erozyonu ve Sediment Konsantrasyonu Üzerine Etkileri

Çiftlik Serisi (Typic Calciorthid) toprağında, parmak erozyonu ve sediment taşınımı üzerine farklı debi ve eğim koşullarının etkisini saptamak için, laboratuar çalışması yapılmıştır. 160 cm uzunluk ve 80 cm genişliğindeki toprak tavasında, denemeler 5, 10 ve 15 l dk-1 debi ve % 5, 10, 15 ve 20 eğimlerde yürütülmüştür. Debi ve eğimin artışıyla sediment konsantrasyonu artmıştır. 15 l dk-1 debi ve % 20 eğimde sediment konsantrasyonu 1027.66 g l-1 ile en yüksek değerde yer alırken, 5 l dk-1 debi ve % 5 eğimde 212.51 g l-1 ile en düşük seviyede yer almıştır. Diğer uygulamalar bu iki değer arasında değişim göstermiştir. Debinin artmasıyla akış hızı da artmıştır. Parmakların genişliği 6–11 cm olarak ölçülmüştür

Anahtar Kelimeler:

Parmak Erozyonu, Yoğun Akış, Sediment Konsantrasyonu, Toprak Erozyonu

The Effects of Different Discharge and Slope Conditions on Rill Erosion and Sediment Concentration

This research was carried out in a laboratory on Çiftlik Series (Typic Calciorthid) soils to determine the effects of different discharge and slope conditions on rill erosion and sediment transportation. Soil pan with 160 cm length and 80 cm width was prepared to see the effects of different discharge and slopes. The values were 5, 10 and 15 l min-1 for discharge and 5, 10, 15 and 20 % for slope. With the increment in discharge and slope sediment concentration increased. The highest sediment concentration was 1027.66 g l -1 at the discharge value of 15 l min -1 and 20 % slope while the lowest value, 212.51 g l-1, was obtained at that of 5 l min-1 and 5 % slope. The results of other trials changed between these values. With the increment in discharge flow velocity increased also. Rills were measured as 6-11 cm in wide.

Keywords:

Rill erosion, concentrated flow, sediment concentration, soil erosion,

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