基于不同预测变量的天然椴树可加性地上生物量模型构建.

王佳慧, 李凤日, 董利虎 - Yingyong Shengtai Xuebao, 2018 - search.ebscohost.com
system of biomass equations. The heteroscedasticity in model residuals was addressed by
applying a unique weight function to each equation. The … Proportion of aboveground biomass

三种林分生物量估算方法的比较.

董利虎, 李凤日 - Yingyong Shengtai Xuebao, 2016 - search.ebscohost.com
… including the stand variables and stand biomass equations including the biomass … A
threestep proportional weighting (3SPW) system of nonlinear biomass equa⁃ tions. Forest Science…

人工神经网络与相容性生物量模型预测单木地上生物量的比较.

梁瑞婷, 王轶夫, 邱思玉, 孙玉军… - Yingyong Shengtai …, 2022 - search.ebscohost.com
… Then, we trained artificial neural network (ANN) biomass model based on the optimal …
A threestep proportional weighting system of nonlinear biomass equations. Forest Science…

基于林分及地形因子的落叶松人工林林分生物量模型构建

孙宇, 李凤日, 谢龙飞, 董利虎 - 南京林业大学学报(自然科学版), 2023 - nldxb.njfu.edu.cn
equations for larch plantations was established. [Method] This study investigated larch …
An additive system of biomass equations was established using the method of nonlinear and …

[HTML][HTML] 大兴安岭东部天然落叶松林可加性林分生物量估算模型

董利虎, 李凤日 - 林业科学, 2016 - html.rhhz.net
nonlinear seemly unrelated regression was used to estimate the parameters in the additive
system of biomass equationsbiomass equations in stand-level biomass additive system were …

黑龙江省樟子松人工林含碳量估算方法的比较

倪添, 谢龙飞, 董利虎 - 生态学杂志, 2023 - cje.net.cn
… The nonlinear seemingly uncorrelated regression was … this study can accurately predict the
biomass and car⁃ bon stock … and weight functions for one and two variable additive system of …

[HTML][HTML] 气候敏感的马尾松生物量相容性方程系统研建

李亚藏, 冯仲科 - 林业科学, 2019 - html.rhhz.net
systems of climate-sensitive biomass compatible equations using nonlinear simultaneous
equations … [Conclusion]The system of climate sensitive biomass compatible equations

基于地理加权回归克里格模型的帽儿山地区森林碳储量空间分布.

孙钰森, 王维芳, 李国春 - Yingyong Shengtai Xuebao, 2019 - search.ebscohost.com
… A threestep proportional weighting system of nonlinear biomass equations. Forest Science…
Developing additive systems of biomass equations for nine hardwood species in North⁃ …

长白落叶松含碳率分析及含碳量异速生长模型.

张悦, 龙飞董, 利虎 - Yingyong Shengtai Xuebao, 2022 - search.ebscohost.com
… The nonlinear seemly unrelated regression was used to … The results showed that the
weighted mean carbon concentration of … Biomass allometric equations for10 co⁃occur⁃ ring tree …

[HTML][HTML] 异速生长模型的误差结构和误差函数

马岩岩, 姜立春 - 林业科学, 2018 - html.rhhz.net
… For comparison, nonlinear model was fitted using GNLS in S-… ) were incorporated into
general nonlinear model to reduce … fitting and validation, nonlinear regression is better than …