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国外工业比较发达的国家都以发展木材综含利用做为解决木材不足的重要措施之一。国外木材利用最高的国家是瑞典(86%)、西德(82%)和日本(75%)。日本现有森林面积占国土面积的67%。它的木材工业亦比较发达,其木屑占原木的7.1%。1971年的木屑量为426万 M~3,其中45%使木屑成型干燥做为燃料,15%制造活性炭,其余40%做为普通燃料或改良土壤。但制造活性炭一般以针叶材的木屑为原料。
Countries with relatively developed industries abroad have adopted the development of comprehensive utilization of wood as one of the important measures to solve the timber shortage. The countries with the highest foreign timber utilization are Sweden (86%), West Germany (82%) and Japan (75%). Japan’s existing forest area accounts for 67% of the country’s land area. Its wood industry is also relatively advanced, with wood chips accounting for 7.1% of the logs. In 1971, the amount of sawdust was 4.26 million M3, of which 45% made wood chips dry and shaped as fuel, 15% produced activated carbon, and the remaining 40% was used as ordinary fuel or improved soil. However, activated carbon is generally produced from sawdust wood chips as raw materials.