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大力营造速生丰产林是解决我国木材短缺问题的重要途径。杨树成材早,据调查,速生丰产林木材产量比一般人工林提高5—20倍,成材可提前5—10年。长太林场在1982年营造了10亩杨树速生丰产林。采用大株行距,培育中、小径材,搞林粮间作,既体现了以林为主的方针,又长短利益结合,互相促进,共同提高,增产增收,经济效益非常显著。
Vigorously cultivating fast-growing and high-yielding forests is an important way to solve the problem of timber shortage in our country. Poplar grow early, according to the survey, fast-growing high-yield forest timber production increased by 5-20 times the general plantation, timber can be 5-10 years ahead of schedule. Chang-Tai-Lin field in 1982 to create 10 acres of poplar fast-growing forest. The use of large line spacing, nurturing medium and small diameter woods, engage in intercropping of forest, not only reflects the principle of forest-based, combined with the length of benefits, promote each other and jointly improve, increase production and income, economic efficiency is very significant.