搜索结果: 1-5 共查到“森林土壤学 timber”相关记录5条 . 查询时间(0.093 秒)
Response of directly seeded high-value timber species to microorganisms,fertiliser and a water retention polymer:implications for reforestation of agricultural lands in Southeast Asia
forestry mycorrhizal fungi rehabilitation root nodule bacteria Rose woods
2016/4/6
High-value native timber species are being promoted in reforestation in Southeast Asia. However, slow growth during early establishment, coupled with poor soil fertility, poses challenges for promotin...
Rutting and soil displacement caused by 450C Timber Jack wheeled skidder (Asalem forest northern Iran)
soil displacement rutting skid trail
2015/3/16
The use of skidding machinery in logging operations causes destructive effects especially on soil but has many advantages such as extracting long and heavy logs, optimum use of useful logging time and...
Soil compaction caused by 450C Timber Jack wheeled skidder (Shefarood forest, northern Iran)
soil compaction forest soil wheeled skidder
2015/3/6
In forest harvesting operations usually after using skidding machinery (skidders), traces of soil damage in the form of soil compaction and wheel and logs ruts can be seen in the forest soil. Soil bul...
Soil compaction in timber skidding in winter conditions
soil compaction multipass skid trail timber skidding water-air soil characteristics
2009/2/7
The research of soil compaction in timber skidding was carried out on two skid trails of uniform slope –15%and 30 %. The degree of soil compaction is shown by changes of water-air soil characteristi...
Probability of Occurrence of Soil Disturbances during Timber Harvesting
timber harvesting soil disturbance probability modeling
2009/2/7
This paper deals with the probability of occurrence of soil disturbance during timber harvesting operations. Studies were carried out in southern Poland in 26 stands differing in terrain, skidding m...