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Effects of Skidder Passes and Slope on Soil Disturbance in Two Soil Water Contents

Ramin Naghdi ; University of Guilan, Faculty of Natural Resources, Someshara, Iran
Ahmad Solgi ; University of Guilan, Faculty of Natural Resources, Someshara, Iran

Puni tekst: engleski, pdf (681 KB) str. 73-80 preuzimanja: 454* citiraj
APA 6th Edition
Naghdi, R. i Solgi, A. (2014). Effects of Skidder Passes and Slope on Soil Disturbance in Two Soil Water Contents. Croatian Journal of Forest Engineering, 35 (1), 73-80. Preuzeto s https://hrcak.srce.hr/120239
MLA 8th Edition
Naghdi, Ramin i Ahmad Solgi. "Effects of Skidder Passes and Slope on Soil Disturbance in Two Soil Water Contents." Croatian Journal of Forest Engineering, vol. 35, br. 1, 2014, str. 73-80. https://hrcak.srce.hr/120239. Citirano 25.02.2020.
Chicago 17th Edition
Naghdi, Ramin i Ahmad Solgi. "Effects of Skidder Passes and Slope on Soil Disturbance in Two Soil Water Contents." Croatian Journal of Forest Engineering 35, br. 1 (2014): 73-80. https://hrcak.srce.hr/120239
Harvard
Naghdi, R., i Solgi, A. (2014). 'Effects of Skidder Passes and Slope on Soil Disturbance in Two Soil Water Contents', Croatian Journal of Forest Engineering, 35(1), str. 73-80. Preuzeto s: https://hrcak.srce.hr/120239 (Datum pristupa: 25.02.2020.)
Vancouver
Naghdi R, Solgi A. Effects of Skidder Passes and Slope on Soil Disturbance in Two Soil Water Contents. Croatian Journal of Forest Engineering [Internet]. 2014 [pristupljeno 25.02.2020.];35(1):73-80. Dostupno na: https://hrcak.srce.hr/120239
IEEE
R. Naghdi i A. Solgi, "Effects of Skidder Passes and Slope on Soil Disturbance in Two Soil Water Contents", Croatian Journal of Forest Engineering, vol.35, br. 1, str. 73-80, 2014. [Online]. Dostupno na: https://hrcak.srce.hr/120239. [Citirano: 25.02.2020.]

Sažetak
Skidding operations induce changes in soil physical properties, which have the potential to impact soil sustainability and forest productivity. Our objective was to investigate the effects of traffic frequency, trail slope, and soil moisture content on soil compaction, total porosity and rut depth. Treatments included a combination of three different traffic intensities (3, 7, and 14 passes), three levels of slopes (< 10%, 10–20% and > 20%), and two levels of soil moisture content (18% and 32%). Soil bulk density and total porosity were measured as 0.75 g cm -3 and 71%, respectively, along the undisturbed area. The results show that bulk density, total porosity and rut depth on skid trails were significantly affected by traffic frequency, skid trail slope and soil moisture content. As the skidder passed, skid trail slope and soil moisture content increased, increasing significantly the average bulk density. Bulk density draws near the critical value after 7 and 14 passes, respectively, at higher and lower soil water content. At each moisture content, the increase of slope > 20% caused a significant increase of the average bulk density. Total porosity on the skid trail was measured from minimum 45% (14 passes and slope > 20%) to maximum 58% (3 passes and slope < 10%) at higher soil water content, and minimum 49% (14 passes and slope > 20%) to maximum 68% (3 passes and slope < 10%) at lower soil moisture content. Rut depth was recorded at 7 and 14 passes at high and low soil water content, respectively, and it increased with the slope. The results show that slope and moisture content had strong effects on soil disturbance.

Ključne riječi
bulk density; rutting; skidding; soil compaction; total porosity

Hrčak ID: 120239

URI
https://hrcak.srce.hr/120239

Posjeta: 634 *