海南省松树和橡胶树林分形高模型研建

Establishment of Stand Form-height Model for Pine and Rubber in Hainan Province

通过设置临时样地和收集连清固定样地数据,分别建立了海南省松树和橡胶树的通用林分形高模型,经模型检验分析后表明:所建林分形高模型预估精度高,达到99%以上;模型TRE指标接近于0,MSE指标等于0,不存在系统偏差;模型对于林分蓄积量的预估精度达到98%。模型研建方法可行,在森林资源调查中有推广使用价值。

In this paper,we established stand form-height models for two tree species（ pine and rubber）,using temporary plots and data of CFI. After testing of these two models by using modeling data,the results showed that： The prediction accuracy of these two models were significantly high,more than 99%; TRE index of these two models were close to 0; MSE were 0,there were no systematic errors; The prediction accuracy of these two models for volume estimation reached 98%. Therefore,the method of establishing these two models is feasible and it is valuable for the investigation of forest resources.