马尾松天然林采脂试验分析

ANALYSIS OF TAPPING RESIN TRIAL IN NATURAL STANDS OF MASSON'S PINE

对马尾松天然林分进行产脂力与其他生长量、气候、土壤因子的相关分析 ,结果表明 :林分间及林分内的产脂力差异极大 ;产脂量与树高、树皮裂纹深度、胸径、树皮厚度、冠幅、侧枝基径呈显著或极显著的正相关 ;在气候因子中 ,月均温是影响产脂量的主要因素 ,而相对湿度和降水量则对产脂量影响不大 ;土壤的速效磷及活性有机质含量高以及土壤酸性越强有利提高产脂力 。

Analysis results indicate : The resin yield ability is significant different inside or between natural stands of massons pine. Correlations between resin yield ability and height, DBH, crown, depth of crack, thinness of bark and diameter of side branch present positive. Average temperature in months is the main climate factor that influence the resin yield ability intensively, but rain fall and relatively humidity influence less. We consider that high content of available phosphate, active organic matter and middle intensity soil acidity may be effect resin yield ability positively, negative factors are the high kalium and available kalium content.\;