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选用林木良种,是提高林产品产量、质量的经济有效途径。同一树种,在同一立地条件下:采用相同营林措施,良种较一般品,种一般增产百分之十五到三十。假若全省现有林木(包括片林和四旁树)都是良种,按全年木材总生长量为一千万立方米计算,每年可增产木材一百五十万到二百万立方米。价
Selection of forest seeds is to improve the yield and quality of forest products, economic and effective way. The same tree species, under the same site conditions: the same forest measures, better than the average quality of seed, the general increase of 15% to 30%. If the existing forest trees in the province (including schist and nearby trees) are all good ones, according to the total annual growth of timber of 10 million cubic meters, 1.5 million to 2 million cubic meters of wood can be increased each year. price