摘要
对大面积油茶林分连续8年定位观测结果表明:油茶群体产量结构是低产植株比例大,高产植株比例小;群体产量分布服从指数分布;群体产量的年度变化表现出明显的大小年结实规律;群体产量的大小年变化主要与大年株的株次比变动有关。依此揭示了油茶混杂群体低产的实质性原因。
The eight year observation of a fair-sized oiltea (Camellia oleifera ) stand has enabled us to establish its colonial output structure as one in Which low yield trees exceed high yield ones in number. We noticed that the stand's total yield conformed to the exponential distribution function, showing regular variance between the bearing year and the off year for which the change in the number of on year trees held responsibility .Hence, the essential cause of the low yield typical of oiltea stands is brought to light.
出处
《经济林研究》
1991年第1期17-22,共6页
Non-wood Forest Research
关键词
油茶
群体
产量结构
大小年结果
Camellia oleifera, colony, yield structure, on year and off year, fruit bearing.
