论文部分内容阅读
1958年大兴安岭林区森林迹地更新作业完成6万公顷(其中主要是火烧枝桠和部分人工更新),比1957年多29倍多,基本实现了更新和采伐同时并举的要求。但是在完成任务上我们还存在着不少缺点,特别是造林质量不高。从绰尔林业局1954年开始造林以来,直播造林平均成活率仅保持在40——70％,这说明了直播造林是存在很多问题的。如何提高更新质量,提高直播造林成活率,我从三个主要问题上谈一谈。一、关于造林地选择及整地问题。林地选择应尽先选择在土壤深厚、地势高、常年无积水或排水良好的地方。如在林地上方有树木庇荫,其
In 1958, Daxinganling forest land renewal operation completed 60,000 hectares (mainly burning branches and partial manual renovation), more than 29 times more than in 1957, and basically achieved the requirements of both updating and logging simultaneously. However, we still have many shortcomings in accomplishing the tasks, especially the afforestation quality is not high. Since the establishment of the Zhuoer Forestry Bureau in 1954, the average survival rate of live afforestation has remained at only 40-70%, indicating that there are many problems with direct seeding afforestation. How to improve the quality of the update and improve the survival rate of direct seeding afforestation, I will talk about three major issues. First, on the afforestation land selection and site preparation. Woodland choice should be the first choice in the soil is deep, high terrain, perennial without water or well-drained place. As trees above the wood shade, its