气象因子对马尾松松脂产量影响的研究

The effect of meteorological factors on the oleoresin output of Pinus massonian

通过对凭祥市马尾松林分连续4年产脂量的调查,研究气候因子的变化对其影响程度,并分析其相关性。结果表明:马尾松产脂量在年变化中最高值出现在气温高、降雨量强度中等的月份,或该月份的前后,但短期间气候变化的影响程度不突出。相对于年变化,年间变化对产脂量的影响较突出。产脂量与年温度变化呈显著正相关,与年降雨量呈不显著的负相关,年降雨量通过与年温度的显著负相关来改变温度条件,从而间接影响产脂量。

Through the investigation of oleoresin output for four years running in masson pine forest of Pinxiang city,the effect of meteorological factors and the correlation were analyzed.The results were as follows： during a year,the maximum value of oleoresin output was present in the month which has high temperature and moderate rainfall,or before and after that,but the effect of climate in short-term fluctuation was non-significant.By contrast,interannual fluctuation had prominent influence.Oleoresin output showed significantly positive correlation with temperature while non-significantly negative correlation with rainfall.The oleoresin output was changed by the negative interaction between temperature and rainfall.