摘要
Biomass is one of the important items for today ,s regional forest resources inventory and monitoring. However, the current biomass models have two big problems,that is,the biomass estimator is not compatible with the volume estimator,and total biomass estimator is not compatible with the biomass estimators of stem,branch, beaf etc. In present paper,a new compatible tree biomass model system for Chinese fir was presented based on volume being selected as explanatory variable and two or more simultaneous models being estimated dependently. These new models could solve the two problems above and have higher precision and better applicability than the currently-used biomass models.
Biomass is one of the important items for today ,s regional forest resources inventory and monitoring. However, the current biomass models have two big problems,that is,the biomass estimator is not compatible with the volume estimator,and total biomass estimator is not compatible with the biomass estimators of stem,branch, beaf etc. In present paper,a new compatible tree biomass model system for Chinese fir was presented based on volume being selected as explanatory variable and two or more simultaneous models being estimated dependently. These new models could solve the two problems above and have higher precision and better applicability than the currently-used biomass models.
出处
《生态学杂志》
CAS
CSCD
北大核心
1999年第4期19-24,共6页
Chinese Journal of Ecology
关键词
兼容性
立木
生物量
非线性模型
biomass,nonlinear model,dependent estimation,compatibility.
