中国林木生物质能源替代煤炭的减排效益评估
耿爱欣, 潘文琦, 杨红强

Quantifying the mitigating effects and benefits from substituting wood biomass for coal in energy production in China
GENG Aixin, PAN Wenqi, YANG Hongqiang
图2 生命周期分析系统边界和功能单元
Figure 2 System boundary and functional unit for life cycle assessment