摘要
树高曲线是建立林分生长与收获模型的基础。该文使用吉林省汪清林业局金沟岭林场的465株冷杉、423株云杉和251株红松标准木数据,分别选用10种树高曲线,对模型参数进行求解,并用决定系数R2、残差和MD、均方根误差RMSE对模型精度进行检验。结果表明,唐守正树高曲线能较好地模拟当地主要树种的树高与胸径的关系;所选出的最优树高曲线可以用于长白山地区针阔混交林中的云杉、冷杉和红松。
The study of height-diameter model is a basic research in forest growth and yield modeling. In this study, 465, 423, and 251 individual trees of fir, spruce, and red pine, respectively, were used in Wangqing Forest Bureau of Jilin Province to test ten selected height-diameter models. After calculating the parameters of each model, correlation coefficient （R2）, mean deviation （MD）, and root mean square error （RMSE） were used to compare among different species and varied models. It is concluded that Tang＇s model is the best to calibrate the relationship of height and diameter for local dominant species. The optimal height-diameter models selected in this paper can be used in predicting height for fir, spruce, and red pine in broadleaved-coniferous forests in Changbai Mountain area, northeastern China.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
2009年第4期13-18,共6页
Journal of Beijing Forestry University
基金
国家自然科学基金项目(30671667)
"十一五"国家科技支撑计划项目(2006BAD03A08-04)
关键词
树高曲线
长白山
云杉
冷杉
红松
height-diameter model
Changbai Moutain
Picea koraiensis
Abies holophylla
Pinus koraiensisi
