红松幼林病害初步研究

来源 :林业科技 | 被引量 : 0次 | 上传用户:XULIANSHUAI
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人工红松林的病害情况,依其经营措施不同,病情轻重差异很大,如经营措施得当,人工红松生长发育正常,不得病,或得病危害也较轻;如经营不当,多种病害都相继发生、蔓延,造成大片成林被毁的现象, Artificial Korean pine forest disease situation, according to their different business practices, severity vary widely, such as business measures properly, the growth and development of artificial Korean pine normal, not sick, or get the disease less harmful; such as improper operation, a variety of diseases have followed Occurred, spread, resulting in a large number of forest destroyed,
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