Forecast combination Biomass 1 Biomass estimation 1 Biomass models 1 Carbon 1 Carbon service 1 China 1 Climate change 1 Climate models 1 Climate-sensitive stand biomass model 1 Forecast combinations 1 Forecast surveys 1 Forest biomass 1 Forest carbons 1 Forestry 1 LASSO 1 Mean square error 1 Model selection 1 Model uncertainties 1 Model uncertainty 1 Regional scale 1 Regularization 1 Shrinkage 1 Uncertainty analysis 1 biomass 1 climate change 1 ecosystem service 1 error analysis 1 estimation method 1 mitigation 1