摘要
利用万用电表对板栗枝干病害的病情程度与树皮电阻值的关系进行了研究。结果表明:在不同的植株间,树皮电阻值随着病情的加重而增加;在同一植株上,树皮电阻值随着树体的高度增加而增大;在树干基部、主枝和梢头三个部位中,电阻值差异比较显著。该研究为今后板栗乃至其他林木枝干病害研究提供了一种简便易行的新方法。
Electric resistance in the bark of Chinese chestnut was measured with electric multimeter for the first time, and the relationship between the severity of stem diseases and the resistance value was studied. The result showed that the bark resistance in different trees increases with the severity of stem diseases, and in different parts of a tree the resistance increases with the tree height. The electric resistance was measured in the top, scaffold limbs, and basal trunk respectively, and their difference is significant. The results of this study provided a new method in forecasting the stem disease severity in the future.
出处
《经济林研究》
2004年第1期46-48,共3页
Non-wood Forest Research
基金
安徽省林业厅"板栗丰产栽培技术"重点项目。
关键词
板栗树
皮电阻值
枝干病害
病情程度
chestnut (Castanea mollissima Blume)
bark
electric resistance
stem disease
