摘要
吉林省樟子松枯黄与枯死林分的调查与分析结果表明:吉林省与樟子松原产地气候相差较大,早春气温回升过早,温暖的气温和充足的光照使樟子松提前打破休眠,树冠枝叶发生蒸腾,而此时土壤并未解冻,根系不能供应充足的水分,导致樟子松发生生理干旱,最终造成樟子松林分的枯黄与枯死。
The investigation and analysis results of Pinus sylvetris var. mongolica yellowed and withered in Jilin province indicated that climate in Jilin province was different from the source area, temperature rising was un- timely in early morning, the warm temperature and sufficient lighting broke the dormancy in advance, transpira- tion was happened in tree crown, and the soil was not unfreezed, so root system couldt supply enough water, this situation led to physiological drought and eventually cause Pinus sylvetris var. mongolica yellowed and withered.
出处
《吉林林业科技》
2013年第6期30-32,共3页
Journal of Jilin Forestry Science and Technology
关键词
樟子松
生理干旱
枯黄
枯死
Pinus sylvetris var. mongolica
physiological drought
yellowed
d withered
