摘要
利用太行山石灰岩区野生连翘标地调查材料,分别拟合了连翘产量(果实鲜重)及连翘覆盖度与连翘灌丛密度的回归方程。由拟合方程导出,阳坡连翘灌丛适宜经营密度范围为4000丛/hm2~5000丛/hm2,阴坡为3000丛/hm2~4000丛/hm2。在此密度范围内,能形成一个以连翘为主体(盖度0.6以上)灌、草相结合的灌草丛群落。此外对灌草林地类型中。
Based on the data of wild Forsythia suspensa plots in limestone region of Taihang Mt regression functions are fitted to predict the output and covering degree from density Deduced from the functions,the optimum management density ranged from 4 000 to 5 000 clumps per hm 2 in south slopes, and 3 000 to 4 000 clumps in north slopes,in which ranges there can forms a shrub grass community combining Forsythia suspensa,as the main part,with other shrubs and grasses Forsythia suspensa layering test was also conducted in the shrub grass type of lands
出处
《山西林业科技》
1997年第2期1-5,共5页
Shanxi Forestry Science and Technology
关键词
连翘
密度
覆盖度
繁殖
林分模式
太行山
Forsythia suspensa,optimum density,covering degree,regeneration method