长春市道路绿化树种黑皮油松受害分析及保护建议

Harmed analysis and protection suggestions of Pinus tabulaeformis var. mukdensis

以长春市道路绿化树种黑皮油松为材料,对其受害原因进行调查分析,结果表明:黑皮油松受害的主要原因是生理干旱,造成黑皮油松生理干旱的直接原因是土壤中盐分的过度积累,冬季融雪剂的过量使用是造成街路绿化带中土壤盐分过量的主要原因。

With the afforestation tree species on road-Pinus tabulaeformis var.mukdensis in Changchun as the experimental materials,investigations on the reasons of harmed showed that： the major cause of the harmed was physiology drought.The direct cause of physiology drought was excessive accumulation of salt in the soil,and the main reason of salt excessive accumulation in the green belt from street was overuse of deicing salt.