单 位:
平江县林业局;国家林业局中南林业调查规划设计院
关键词:
林分形高模型;连清;桉树;木麻黄;马占相思;海南省
摘 要:
为方便海南省森林资源规划设计调查工作中对桉树、木麻黄和马占相思林分蓄积量估测,通过设置临时样地和收集连清固定样地数据,分别对海南省桉树、木麻黄和马占相思建立了通用的林分形高模型,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98%以上;模型TRE指标接近于0,MSE指标也接近于0,不存在系统偏差;模型对于林分蓄积量的预估精度达到97%。模型研建方法可行,在实际森林资源调查中有推广使用的价值。
译 名:
Establishment of Stand Form-height Models for Eucalyptus,Casuarina equisetifolia and Acacia mangium in Hainan
作 者:
LIU Xiaoping;FENG Qiang;XIAO Qianhui;Forestry Bureau of Pingjiang County;Central South Forest Inventory and Planning Institute of State Forestry Administration;
关键词:
stand form-height models;;CFI;;Eucalyptus;;Casuarina equisetifolia;;Acacia mangium;;Hainan
摘 要:
In this paper,we established stand form-height models for three tree species:Eucalyptus,Casuarina equisetifolia and Acacia mangium,using temporary plots and data of CFI. The testing results of these models showed that:the prediction accuracies were significantly high,more than 98%; TRE indexes were close to 0;MSE indexeswere also close to 0; the prediction accuracies for volume estimation reached 97%. Therefore,the method of establishing these models was feasible and it will be valuable for the investigation of forest resources.