摘要
通过对我国部分生态脆弱地区,尤其是我国广大的三北地区林分退化现象进行分析,得出林分退化的主要原因,分别为生理过熟、立地条件恶劣、树种选择不当、人为干扰及病虫害的影响,对每一种原因进行详细的分析.同时,就不同原因导致的退化林分提出针对性的修复措施,主要有重新造林、补植补造、封育及抚育管护.
In this study,the phenomenal of forestry degeneration were analyzed in the ecosystem crisp areas in our country,especially the broad the three-north region.The main reasons of forestry degeneration include： the physiological maturation of forestry was too hash,the site condition of forestry was barren,choice the wrong species of trees,mistake man-made interference,and influence of plant diseases and insect pests.Every reason was analyzed detailed.At the same time,the pertinent advances of reclamation activities for every reason which can cause the forestry degeneration were suggested,include reforestation,replenish the forestry,manage and protect by close and facilitate afforestation.
出处
《农业科学研究》
2010年第2期63-67,共5页
Journal of Agricultural Sciences
关键词
三北地区
退化林分
修复
the three-north region
degenerated forestry
reclamation
analysis
作者简介
王莉萍（1963-）．女，陕西定边人，助理实验师．主要从事林业生态工程方面的研究．
