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半山丘陵地带在黑龙江省占有相当大的比例,其中坡上的天然植被早经开发利用,并已趋殆尽。碾子山区自2001年开始,对半山丘陵进行二次深度开发,采取在“山顶人工造林、山腰开辟林间草场、山脚和山川种粮”的多层次立体构造,使高树与矮草紧密结合、山上与山下协调发展。经过4～8年的造林育草,使牧草产量提高5～7倍,近期可获得草牧业收
Hilly areas occupy a considerable proportion of Heilongjiang Province, of which the natural vegetation on the slope after the early development and utilization, and has been depleted. Since 2001, Nianzishan Mountain has developed the second deep development of the Mid-levels Hill and adopted the multi-level three-dimensional structure such as “hilltop afforestation, hillside opening up forest meadows, hillsides and planting of mountains and mountains” Combination of mountain and mountain coordinated development. After 4 to 8 years of afforestation, pasture yield increased by 5 to 7 times the recent grasses can be received