长白山林区水湿地、季节性水湿地和塔头甸的面积约占林地面积的4％以上,由于无法进行大面积的植树造林,影响了森林覆盖率的提高和森林资源的扩大。目前,对改造水湿地植树造林已排到营林生产的重要议程上来,部分地区对季节性水湿地采取人工挖塔头筑台植树。这不仅劳动强度大,而且效率低、成本高。因此,急需研制开沟筑台机械。用拖拉机悬挂牵引的SKL—55型山地开沟犁正是 The area of ​​water wetlands, seasonal wetlands and towering headlands in Changbai Mountain forestry area accounts for more than 4% of the total area of ​​forestland. Due to the inability to carry out large-scale tree planting and afforestation, the improvement of forest coverage and forest resources will be affected. At present, the reconstruction of wetlands afforestation has been discharged to the important agenda of the production of silviculture, in some areas of the artificial precipitation of seasonal water wetlands to build towers and trees. This is not only labor intensive but also inefficient and costly. Therefore, the urgent need to develop trench construction machinery. SKL-55 type of mountain ditching plow with tractor suspension traction is