论文部分内容阅读
幼林抚育是促进幼苗及树木迅速生长,获得优质苗木和木材的重要手段。幼林抚育的工作量很大,季节性较强,作业的技术要求也很高(伤苗率不得超过0.5%)。由于近年来整地和栽植质量不断提高,幼林生长迅速。如:2年生速生杨、榆和秦皮等在良好的抚育管理条件下,树高一般都在1.1米以上,有的高达2米以上。我场抚育机组是以东方红—54拖拉机为动力,用 C-11连接器主樑[以下简称 C-11(主)]、JC-10五台锄草机编组的。通过离地间隙分别为;260毫米、900毫米、400毫米。这样在通过低间隙作业情
Nursery tending is an important means to promote the rapid growth of seedlings and trees and to obtain good quality nursery stock and wood. Young nursery tending is very heavy workload, seasonal, technical requirements are also high (wound injury rate should not exceed 0.5%). Due to the improvement of soil preparation and planting quality in recent years, young forest grows rapidly. Such as: 2-year-old fast-growing poplar, elm and Qin skin in good tending management conditions, the tree height are generally more than 1.1 meters, some as high as 2 meters above. Our field tending unit is powered by Dongfanghong-54 tractor, grouped by C-11 connector main beam [C-11 (main)] and JC-10 five weeding machines. Through the ground clearance were; 260 mm, 900 mm, 400 mm. This work through the low gap situation