摘要
Based on the whole stand model of Daqingshan, using simulation method, the impact of measurement error of number of trees per hectare, average diameter, dominant height, average height and form height on the whole stand model were studied. The result indicated that, beting estimated by least square method, basal area model, average diameter model, number of trees per hectare model had obvious biases, but dominant height model, average height model and form height model had no clear biases.
Based on the whole stand model of Daqingshan, using simulation method, the impact of measurement error of number of trees per hectare, average diameter, dominant height, average height and form height on the whole stand model were studied. The result indicated that, bering estimated by least square method, basal area model, average diameter model, number of trees per hectare model had obvious biases, but dominant height model, average height model and form height model had no clear biases.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2005年第6期166-169,共4页
Scientia Silvae Sinicae
基金
"数字林业"关键技术引进
948项目(2001-13)。
关键词
度量误差
全林整体模型
最小二乘估计
measurement error
whole stand model
least square estimation
