摘要
为探讨杉木人工林立木密度对优势木平均高、林分单位面积蓄积量、林分平均直径等生长因子的规律，于2003-2005年在广南县14个乡镇，设置20m×30m的杉木人工林样地215块，在实测胸径和树高的基础上进行资料整理，并编制了杉木人工林林分密度控制图。经检验，其等树高线精度为97．8％，等直径线精度为98.8％。
In order to explore the influence of density of China fir artificial forest on the growth factors including average height of dominant timbers, stock volume per unit area of stand, average diameter of stand, 215 sample plots of 20m×30m of China fir artifieial forest were set up in 14 townships of Guangnan eounty in 2003 - 2005 to collect data based on the actual measurement of breast diameter and tree height, and mapping stand density control of China fir artifieial forest. The test indieates that precision of eontour tree reaehes 97.8 % and preeision of eontour diameter is 98.8 %.
出处
《林业调查规划》
2006年第3期37-41,共5页
Forest Inventory and Planning
关键词
编制
林分密度控制图
杉木人工林
广南县
composition
map of stand density control
China fir artificial forest
Guangnan county
