在伟大领袖和导师毛主席“绿化祖国”、“实行大地园林化”的伟大号召指引下,我局对林区沼泽地进行了改造、利用和恢复森林的一系列工作,取得了一定的成绩和经验。特别是1958年以来,对采伐迹地中的沼泽地进行了大面积落叶松人工更新,到1977年止,已更新落叶松3,307公顷,成林面积占86％,幼林面积14％。幼林成活率90％。目前,林相整齐,生长良好,现已成林的每公顷2,000—4,000株,郁闭度0.60—0.90,林龄11—19年, Guided by the great call of “Great Motherland” and “Chairman Mao Zedong’s Motherland” and “Implementing Grand Garden”, our bureau made a series of achievements in rebuilding, utilizing and restoring forests in the swampy areas of forests experience. Especially since 1958, large areas of larches have been artificially renewed in wetlands in the deforestation areas. By 1977, 3,307 hectares of larches had been renewed, covering an area of ​​forest of 86% and young forest area of ​​14%. Young forest survival rate of 90%. At present, the forest is neat and well-planted. It has 2,000-4,000 plants per hectare now undergoing forest cover, a canopy density of 0.60-0.90 years old and a mean age of 11-19 years.