德宏地区纬度偏北,成林胶园冬季林内光照较少,遇到低温年份,造成茎干基部皮层生理性溃烂为主的寒害,俗称胶树烂脚。 胶树烂脚后,不同程度中断了根茎之间的输导关系,因木质溃烂、腐朽,根部吸收的水份和无机盐,不能畅通上送,叶片光合作用产物无法下达,影响生长和产胶。尤其烂树围一半以上的胶树,暴露的木质,受日晒、雨淋、虫蛀、风吹,常遭 Dehong latitude northerly, into the plastic forest in winter Lin Lin less light, encountered cold temperatures, resulting in the main stem cortex physiological ulcers-based chills, commonly known as rubber tree rotten feet. Gum tree rotten feet, to varying degrees, interrupted the relationship between the rhizome of the transmission, due to wood ulceration, decay, root absorption of water and inorganic salts, can not be smooth on the send photosynthesis leaves can not be released, affecting the growth and production of plastic . In particular, more than half of rotten tree gum trees, exposed wood, by the sun, rain, moth-eaten, the wind, often