regeneration under clean cutting system 迹地更新(林) Regeneration under clear cutting system 皆伐更新 top collar and under shed cutting machine 切上领下口机 ..
基于16个网页-相关网页
... regeneration under clear cutting 皆伐更新 under-cutting 削平现象 under water cutting 水中切割 ...
基于4个网页-相关网页
·2,447,543篇论文数据,部分数据来源于NoteExpress
通过对32个样带779个样方的调查,认为坡度、留母树否、灌木生长状况是影响皆伐后天然更新的主要因子。
Based on the survey from 32 belt-transects and 779 quadrats, it was found that slope, seed-tree, and shrub growth status are the main factors which affect natural regeneration on clear-cut sites.
动态监测结果显示,采用择伐和皆伐人促更新措施后群落恢复较快。
The dynamic monitor result showed that the community recovery was relatively rapid after adopting the measures of selection felling and the clean felling reproductions with artificial promotion.
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