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一、试验目的我国南方林区,阔叶树占着相当大的比重,例如广西大苗山林区,阔叶树即占77%。由于阔叶材的容积重一般较大,浮水性较差,故在赶羊流送中沉没率亦较大。据广西三江林业局试验,木荷在9天的赶羊期中,沉没率达10%,锥木达50%。根据苏联的统计,桦木在75天的赶羊期中,沉没率达12%,其他阔叶材达25—33%。为了探求阔叶材的浮水性能,以扩大赶羊木材的范围,从而多快好省地增产木材,特就我院木
First, the purpose of the test Forest area in southern China, broad-leaved trees account for a large proportion, for example, Guangxi Dafengshan forest, broad-leaved or 77%. As the hardwood generally larger volumetric capacity, poor water-floating, it is also a large sinking in the goat flow rate. According to the trial of Sanjiang Forestry Bureau of Guangxi, Schima superbillage rate reached 10% and cone wood reached 50% during the 9-day sheep-raising period. According to the statistics of the Soviet Union, during the 75-day sheep-breeding period, birch trees have a sunk rate of 12% and other broad-leaved trees of 25-33%. In order to explore the water properties of hardwoods to expand the scope of sheepwood timber, so as to increase the production of wood faster and better, especially in our hospital wood