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4 各敏感参数对红松年净初级生产力(NPP)和蒸散(ET)影响的通径系数

Table 4 The path coefficients of sensitive parameters on net primary productivity (NPP) and evapotranspiration (ET) of Korean pine

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 LAIall:proj -0.459 -0.474 0.015 0.901 SLA 0.210 0.168 0.041 0.481 C:Nfr 0.252 0.204 0.047 FRC:LC -0.113 -0.117 0.004 Wint -0.513 -0.476 -0.038 SC:LC -0.051 0.029 -0.080 LFRT 0.422 0.493 -0.071 C:Nleaf -0.018 -0.086 0.069 FLNR 0.117 0.065 0.052 Gcut 0.141 0.204 -0.063 SLA -0.389 -0.446 0.057 Gsmax -0.370 -0.359 -0.011 C:Nleaf 0.035 -0.039 0.074 k 0.429 0.421 0.009 WPM 0.008 -0.045 0.052 C:Nfr 0.308 0.229 0.078 Gbl -0.128 -0.064 -0.064 C:Nlitter 0.114 0.103 0.011