The study result indicated that thinning cost was determined mainly by location of forestland the number of thinned trees and whether or not hauling logs from forest.
研究结果显示，疏伐成本主要取决林地之地区别、是否搬出疏伐木以及搬出株数。
One popular technique for hauling lumber was to use horses and oxen to drag logs over skid roads and rough tracks through the woods.
搬运木材的一种普遍手法是用马和牛在森林中的滑道和崎岖小路上拉木头。
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