摘要
通过对黑龙江省东部山区10个林业局、427块标准地、1 712株解析木的调查研究,得到了杨、桦林的树高、胸径和材积生长曲线,并编制了杨、桦林的抚育间伐控制图。
An investigation on 1 712 analytic trees selected from 427 sample plots was conducted at 10 forest enterprises in the eastern mountainous region of Heilonjiang Province, China. The results in growth curves of tree height, DBH and volume were obtained, and then control chart of intermediate cutting to the poplar and birch stands was compiled.
出处
《吉林林业科技》
2005年第6期36-39,共4页
Journal of Jilin Forestry Science and Technology
关键词
杨、桦林
生长规律
抚育间伐
poplar and birch stands
growth regularity
intermediate cutting
