针对生物燃料在能量生产和温室气体减排作用中的不确定性，本研究以陕西黄连木生物柴油生产为例，利用耦合地理信息系统（GIS）空间分析与生命周期分析（LCA）进行能源植物开发利用潜力评估的技术方法，通过识别黄连木生长的生态限制因子，基于最新土地利用、气象、土壤、DEM等数据，运用多因子综合评价方法，建立1km空间栅格数据的黄连木种植适宜性综合评价模型，获取适宜于黄连木规模化种植的土地资源与空间分布；利用修改后LCA模型，定量估算不同适宜性土地发展黄连木生物柴油的净能量/净排放值并分析总产能/减排潜力。同时基于生态学模型模拟及地面调查，确定土地利用方式改变前后地上植被NPP和土壤碳储量的变化，并将结果对比分析，客观评价黄连木生物柴油的温室气体减排潜力。为我国区域生物能源产业决策提供科学数据和理论依据。

To provide the basis for the uncertainties of developing biodiesel from Pistacia chinensis in Shannxi province, land resources suitable for Pistacia chinensis planting and their spatial distribution, suitability degrees were investigated, then total net energy production potential and GHG emission reduction potential derived from large-scale planting of Pistacia chinensis were estimated, based on GIS and Life Cycle Analysis. Multi-factor comprehensive analysis method was used to identify land resources suitable for Pistacia chinensis cultivation, make suitability assessment, and obtain their spatial distribution, suitability degree and total amount. Then, using LCA method, the life cycle net energy and greenhouse gas emission reduction capacity of marginal land resources with different suitability degrees for biodiesel production was calculated. The life cycle model was expanded to obtain the potentiality of total net energy production and greenhouse gas emission reduction of Pistacia chinensis plantation. Finally, based on ecology model simulation and field investigation, the changes of study vegetation NPP and carbon in soil after the change of land use patterns were analyzed and compared with the above model output, in order to evaluate greenhouse gas emission reduction potential of biodiesel from Pistacia chinensis. The results can provide scientific data and the theoretical basis for China's regional bio-energy industry decision