带岭林业实验局从1951年开始造林到现在的15年过程中,经过不断地观察对比,总结经验,在大面积营造人工速生丰产林的同时,营造了大量的高质量、多品种、速生丰产的混交林,占全局人工更新造林总面积的82%。实践证明,营造多品种的人工混交林的好处很多,除了可以充分供应国家建设对各种不同木 In the course of 15 years starting from afforestation in 1951 to present, with the experience of continuous observation and comparison, with the establishment of artificial fast-growing and high-yield forests on a large scale, the Tailing Forestry Experimental Bureau has created a large number of high-quality, multi-species, fast-growing and high-yielding Mixed forest, accounting for 82% of the total artificial afforestation area. Practice has proved that creating a multi-species mixed plantation many benefits, in addition to fully supply the country to build a variety of different wood