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作 者:郭树平
出 处:《林业科技》2007年第1期22-25,共4页Forestry Science & Technology
摘 要:木材造纸质量好、得浆率高,适于大企业生产的原料供应。尽管黑龙江省是林业大省,但造纸原料也严重不足。目前的纸和纸板年生产能力约75万t,纸浆和木材的自给率仅为30%,即每年进口283万m3;到2010年,纸和纸板年生产能力将达200万t,木材消耗将达1 132万m3,木材缺口将达800万m3。黑龙江省5年内将增加有林地面积222万hm2,在有林地中约有500万hm2森林需要改造,土地资源丰富,具有广阔的纸浆林发展空间。有杂种落叶松、中美山杨、中黑防杨树、1344杨树等适合于寒地栽培的速生丰产优良新品种,具有良好的科技支撑。总之,黑龙江省纸浆林具有非常广阔的发展空间。Wood is materials of paper suited to big enterprise because of its fine and high pulping. Though forest is rich in Heilongjiang Province, the paper materials are severe deficient. At present, the annual output of paper and paper board is about 0. 75 million tons. Self - sufficiency rate of pulp and timber is only 30%. That is to say the imports is 2.83 million m^2 every year. By 2010 the annual output would have been to 2 million tons and wood consumption to 11.32 million m^2 in the next five years in Heilongjiang Province. About 5 million hm^2 forests need to be transformed. Land resource is abundant, which is favorable for the development of pulp forest. There fast - growing and high - yielding varieties which adapted to be cultivated on cold land. For example, hybrid larch, Populus davidiana × P. tremuloides, P. deltoidesand x P. cathayana and Populus 1344, all of this provided good technology support for pulp forest. In a word, there was enormous room for pulp forest in Heilongjiang Province.
分 类 号:S727.31[农业科学—林木遗传育种]
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