摘要
依据海南省无性系木麻黄立木实测的建模数据和检验样本数据,建立了固定参数二元山本材积式模型和可变参数二元动态材积模型,经模型检验及对比分析表明:两种模型都具有较高的预估精度,平均预估精度均达到98%以上;从模型的通用性和全面切合性能比较,可变参数动态材积模型要优于固定参数山本材积式模型.
Based on the tree volume modeling samples data and testing samples data of Casuarina equisetifolia clones in Hainan,we constructed two-way fixed parameters Yamamoto volume model and two-way variable parameters dynamic volume model.The results showed that;The average prediction precision of these two models had been more than 98%;Compared to versatility and fit of these two models,dynamic model was superior to Yamamoto volume model.
作者
黄四南
HUANG Sinan(Forestry Bureau of Linxiang City,Linxiang 414300,Hunan,China)
出处
《中南林业调查规划》
2019年第3期63-66,共4页
Central South Forest Inventory and Planning
关键词
木麻黄
山本材积式模型
可变参数动态模型
海南省
Casuarina equisetifolia
Yamamoto volume model
variable parameters dynamic model
Hainan
