林业科学2011，Vol.47Issue(10)：83-90,8.
基于分级的全国主要树种树高-胸径曲线模型
Height-Diameter Model for Major Tree Species in China Using the Classified Height Method
摘要
Abstract
Site plays an important role in fitting height-diameter model in such a large scale as nation, whereas it is not known in most cases. Using the classified height method with double iteration algorithm, height-diameter model of six major tree species in china, including Quercus, Cunninghamia lanceolata, Pinus massoniana, Populus, Larix gmelinii and Pinus tabulaeformis ,were constructed. The data came from height-measurement file in 7th national consecutive forest inventory, total observations were 118 441, of which 79 095 observations used for model development and 39 346 observations used for model validation. Contrasting to ordinary method, the coefficients of determination reached 0. 942 8-0. 966 5 from 0. 520 3-0. 753 2. Parameter sensitivity analysis and model validation showed that models were robust in general and fitted parameters were statistically reliable. The classified height method is useful to construct height-diameter model for all tree species in china. Considering stand factors,the method is helpful to evaluate national forest site.关键词
树高-胸径模型/树高分级/双重迭代算法/参数灵敏度分析Key words
height-diameter model/classified height/double iteration algorithm/parameter sensitivity analysis分类
农业科技引用本文复制引用
李海奎,法蕾..基于分级的全国主要树种树高-胸径曲线模型[J].林业科学,2011,47(10):83-90,8.基金项目
"十一五"国家科技支撑计划课题(2006BAD23 B0203). （2006BAD23 B0203）
