摘要
介绍了2个护林成功的典型案例,在探究其成功原因的基础上,分析指出,牛羊为害一般并不会直接致死幼树,但放牧反复为害,会严重削弱幼树的整体光合作用,破坏地上与地下部分的协调性,紊乱营养生长与次生代谢过程相互关系,导致幼树一步步走向衰弱死亡,幼林地永无成林的希望。所以,新造林地必须严格禁牧。
The article analyzed and introduced two successful cases of forest protection and pointed out that cattle and sheep usually did not directly lead to death of sapling, but grazing repeatedly, will severely weakened sapling overall photosynthesis, damage to the ground and underground part of coordination,relationship between vegetative growth and secondary metabolism must be disorder. In the end, young trees slowly decline and die, there is no hope of become a forest. So, the authors think that new planting area must be strictly grazing prohibition.
出处
《甘肃林业科技》
2014年第4期73-75,共3页
Journal of Gansu Forestry Science and Technology
基金
国家科技支撑计划项目"2011BAK12B08"资助
关键词
放牧
幼林地
危害
graze
young forest
hazard
