Biome-BGC模型模拟阔叶红松林碳水通量的参数敏感性检验和不确定性分析

李旭华,孙建新

Testing parameter sensitivities and uncertainty analysis of Biome-BGC model in simulating carbon and water fluxes in broadleaved-Korean pine forests

LI Xu-Hua,SUN Osbert Jianxin

表5 各敏感参数对阔叶树年净初级生产力(NPP)和蒸散(ET)影响的通径系数

Table 5 The path coefficients of sensitive parameters on net primary productivity (NPP) and evapotranspiration (ET) of broadleaved trees

参数符号 Parameter symbol NPP 决定系数R2 Determination coefficient 参数符号 Parameter symbol ET 决定系数R2 Determination coefficient 简单相关系数 Correlation coeffficient 直接通径系数 Direct path coefficient 间接通径系数 Indirect path coefficient 简单相关系数 Correlation coeffficient 直接通径系数 Direct path coefficient 间接通径系数 Indirect path coefficient C:Nleaf -0.385 -0.436 0.052 0.749 CGP -0.367 -0.300 -0.067 0.706 SLA -0.526 -0.483 -0.043 SLA 0.416 0.409 0.007 Gsmax -0.334 -0.259 -0.075 FRC:LC -0.288 -0.202 -0.086 C:Nlitter 0.362 0.306 0.055 SC:LC -0.409 -0.321 -0.087 C:Nfr -0.175 -0.117 -0.058 Gbl 0.388 0.329 0.059 SC:LC 0.215 0.195 0.020 FLNR 0.215 0.179 0.036 Wint -0.333 -0.203 -0.130 LWPf -0.271 -0.257 -0.014