中国科学院林业土壤研究所和黑龙江省林业科学研究所为了解决利用林区枝桠木问题.已试制牛皮纸浆成功。纸浆外观上可以赶上国内先进水平。另外并建成了土法车间;全国枝桠总产量约1000万吨,可造纸400万吨,值人民币30亿元。另外节约清林费1560万元.腾出造纸正材值2600万元,总共可为国家创造 Institute of Forestry and Soil Science, Chinese Academy of Sciences and Heilongjiang Provincial Institute of Forestry in order to solve the problem of the use of branches and trees in forest areas. Kraft pulp has been successfully made. Pulp appearance can catch up with the domestic advanced level. In addition, an indigenous workshop was set up; the total output of twigs in the country was about 10 million tons and 4 million tons of paper worth RMB 3 billion. Another save Qinglin 15.6 million yuan to free paper worth 26 million yuan, a total of for the country to create