ECOPERSIA
ECOPERSIA
ECOPERSIA
Basic Sciences
http://ecopersia.modares.ac.ir
1
admin
2322-2700
2538-2152
10.22034/ecopersia
en
jalali
1390
2
1
gregorian
2011
5
1
0
1
online
1
fulltext
en
Changes in Soil Physical Properties in Response to Metal-Tracked Skidder Traffic
Ground skidding on skid trails affects the physical properties of soil. The objective of this study was to evaluate changes in soil physical properties on skid trails formed due to traffic of metal-tracked skidders with regard to soil bulk density, total porosity, water content and penetration resistance. The studies were implemented on two levels of slope – <20% (SC1) and >20% (SC2) – and three levels of traffic (one, five and nine traffic cycles). The treatment plots with three replications, consequently, were 6 m long and 4 m wide. The measurement of soil penetration resistance was carried out using a cone penetrometer. The samples were taken from 10 cm of top soil at six points in each plot. The results indicated that the skidder traffic did not significantly affect the soil physical properties measured in three levels of traffic at SC1, whereas it was significant between one and five traffic cycles in SC2. Most of the changes in the measured properties in the skid trails occurred after the first loaded skidder traffic. Within all traffic of SC2, differences in the mean values of water content and soil porosity were greater compared with the mean values at the same traffic of SC1, although these differences were not significant. The bulk density and penetration resistance at five and nine traffics of SC2 were significantly different from the same traffic of SC1.
Bulk density,Skidding operations,Soil penetration resistances,Total porosity,Water content
13
21
http://ecopersia.modares.ac.ir/browse.php?a_code=A-24-1000-666&slc_lang=en&sid=24
Berdimohammad
Agherkakli
Berdimohammad
Agherkakli
100319475328460040004
100319475328460040004
No
Tarbiat Modares University, Noor, Mazandaran Province, Iran
Tarbiat Modares University, Noor, Mazandaran Province, Iran
Akbar
Najafi
Akbar
Najafi
100319475328460040003
100319475328460040003
Yes
Department of Forestry, Tarbiat Modares University, Noor, Mazandaran Province, Iran
Department of Forestry, Tarbiat Modares University, Noor, Mazandaran Province, Iran
Seyed Hamidreza
Sadeghi
Seyed Hamidreza
Sadeghi
100319475328460040005
100319475328460040005
No
Department of Watershed Management, Tarbiat Modares University, Noor, Mazandaran Province, Iran
Department of Watershed Management, Tarbiat Modares University, Noor, Mazandaran Province, Iran