【摘要】 经过16年引种驯化和2年种源试验,华北落叶松已在祁连山(北坡)林区引种初获成功,其生长初期比青海云杉快1—2倍,是祁连山林区海拔2000—3000m范围内阴坡和半阴坡生长大有希望的速生树种。更多还原

【Abstract】 Through sixteen years of introduction and acclimatization and two years of experiments on provenance, the results of Larix principisrupprechtii have been obtained in the forest region on the north slope of Qilian Mountains. The growth of Larix principis-rupprechtii is 1—2 times as fast as that of Picea crassifolia Kom. during the period of its early growth. It has proved that this species suitable to the shade or half-shade slopes in the forest region of Qilian Mountains at the altitude of 2000—3000m.更多还原