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调查了集材道坡度和运输量对2个土层(0-10和10-20cm)干扰。试验共设置4个运输水平(2,7,12和20次)、2个坡度(<20%和>20%)和2个土层深度(0-10和10-20cm)。结果表明,集材机运输、纵向坡度和土壤深度对集材道土壤容重都有显著影响。不同运输水平与对照条件下的土壤容重存在显著差异。不同坡度、不同土壤深度的平均土壤容积密度随着运输水平增加而显著增加,运输量为12次时土壤容积密度最大,但当运输量在12～20次之间时,土壤容积密度没有显著差异。交通运输与土壤深度之间存在显著的相互作用(F0.05,3=0.109,p<0.001)。不同交通运输条件下,2个坡度的集材道土壤含水量以及2个土壤深度的土壤含水量之间均存在显著差异p<0.001)。虽然集材机运输和坡度都会影响土壤水分含量,但是,两者之间并没有显著相互作用。
The disturbance of two soil layers (0-10 and 10-20 cm) was investigated for the slope and volume of the bulk material. A total of 4 transport levels (2, 7, 12 and 20), 2 slopes (<20% and> 20%) and 2 soil depths (0-10 and 10-20 cm) were set. The results show that the skidder transport, longitudinal gradient and soil depth have a significant effect on the bulk density of the timber. There was a significant difference in soil bulk density between different transport levels and control conditions. The average soil bulk density at different slopes and different soil depths increased significantly with the increase of transport levels. The soil bulk density was the largest at 12th transshipment, but there was no significant difference in soil bulk density when the transport volume was between 12 and 20 times . There was a significant interaction between transport and soil depth (F 0.05, 3 = 0.109, p <0.001). Under different traffic conditions, soil moisture of two slopes of the timber road and soil moisture content of two soil depths were significantly different (p <0.001). Although skid steer transport and grade affect soil moisture content, there is no significant interaction between the two.