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杂草是林业生产中的大敌,对林木的危害十分严重,被称为绿色的“火焰”.首先,在森林的边缘及林内滋生的杂草枯干后,成为传火的媒介,为了控制森林火灾的发生和蔓延,必须花费很大代价开设林缘、林间防火隔离带.其次,为保证造林质量,提高成活率,需进行造林前整地,清除杂草.第三,杂草对苗木及林木的危害十分严重,据测算由于不能及时清除杂草,树木生长量最初三年要减少50%以上,甚至全株被欺死,尤其是
Weeds are the enemy of forestry production, the damage to the tree is very serious, known as the green “flame.” First, after the edge of the forest and the weeds in the forest withered, withered, become the media of fire transmission, in order to control the forest Second, in order to ensure the quality of afforestation and improve the survival rate, we need pre-afforestation, clearing weeds.Third, weeds on seedlings and Forest hazards are very serious, it is estimated that due to the timely removal of weeds, tree growth in the first three years to reduce more than 50%, or even whole plant was deceased, especially