摘要
通过对大兴安岭天然平榛潜在结实能力进行的分析,结果表明:大兴安岭天然平榛有较高的潜在结实能力,最高可达1 304kg hm^(-2),是天然状态下实际结实量(200kg hm^(-2))的6.5倍,具备经营条件。最佳结实年龄是3-5年生,6年生以后结实开始下降;最佳密度因年龄不同有所不同,3年生结实量为15万~25万株 hm^(-2),4~5年生为11万~19万株 hm^(-2)。
Potential yielding of natural Corylus heterophylla in Daxing＇anling were analyzed.Result shows that：Daxing＇anling natural Corylus heterophylla has a high potential yielding capacity,up to 1 304 kg hm^-2,is 6.5 times as much as the natural state of the actual strength（200kg hm^-2）,with operating conditions.The optimal age is from 3 to 5 years old,the yielding begin to decline after 6 years;the optimal density varies due to age,the density for 3-year-old Corylus heterophyllais from 15 million hm^-2 to 25 million hm^-2;the density for 4-5-year-old Corylus heterophyllais from 11 million hm^-2 to 19 million hm^-2.
出处
《防护林科技》
2017年第5期44-45,共2页
Protection Forest Science and Technology
关键词
平榛
结实能力
大兴安岭
Corylus heterophylla
yielding
capacity
Daxing＇anling Forest Region
