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 could't supply enough water , this situation led to physiological drought and eventually cause Pinus sylvetris var.mongolica yellowed and with-ered.
展开▼
