论文部分内容阅读
从黑龙江林口和辽宁抚顺引进日本落叶松种苗，在黑龙江西部半干旱地区营造试验林，经２０ ａ 观察研究结果表明，日本落叶松适应性强，生长快，林分稳定。在龙江县错海林场，１８ 年生日本落叶松林，平均树高１２－９ ｍ ，平均胸径１４－５ ｃｍ ，平均单株材积０－１１ｍ３ ，木材蓄积１０６－９ ｍ３／ｈｍ２ ， 比长白落叶松高５７－０ ％ ，比兴安落叶松高２５０－５ ％ 。实践证明，日本落叶松是黑龙江西部半干旱地区的优良树种，可在营造速生用材林、农田防护林和城乡绿化中推广应用。
Larix kaempferi seedlings were introduced from Linkou in Heilongjiang and Fushun in Liaoning Province, and the experimental forest was constructed in the semi-arid area of western Heilongjiang Province. After 20 years’ observation, the results showed that Japanese larch had strong adaptability, fast growth and stable stand. In the wrong Hailin Farm in Longjiang County, the 18-year-old Larix kaempferi plantation has an average height of 12-9 m, an average diameter at breast height of 14-5 cm, an average single plant volume of 0-11 m3, and a timber volume of 106-9 m3 / hm2, High 57-0%, 250-5% higher than Larch Larix. Practice has proved that Japanese larch is an excellent tree species in the semi-arid area of western Heilongjiang Province, which can be popularized and applied in creating fast-growing timber forests, farmland shelterbelts and urban and rural afforestation.