摘要
研究了马尾松和杉木离地面２０ｃｍ以下干基５个不同高度直径与胸径的相关关系，建立起精度达９８．６％的马尾松胸径与干基１０ｃｍ高处直径的数学模型和精度达９８．８％的杉木胸径与干基１５ｃｍ高处直径的数学模型。此两模型可用于被盗伐木的材积核实、森林资源采伐审计和马尾松割脂林木的胸径修正。
The correlations between D. B. H. and diameters in 5 different high below 20 cm at butts of Masson's pine and Chinese fir were analysed. Two mathematical models with 98. 6% and 98. 8% accuracy respectively were established to estimate the correlations between D. B. H. and the diameter in 10 cm high at butt of Masson's pine as well as that in 15 cm for Chinese fir. The models could be applied to calculate the volume after timber tresssing, rediting logging yield and modify the D. B. H. of trees after .turpening just basis on the diameters of the stump.
出处
《广东林业科技》
1996年第2期14-17,共4页
Forestry Science and Technology of Guangdong Province
关键词
马尾松
杉木
干基直径
胸径
Masson's pine, Chinese fir, diameter at butt, D. B. H.
