In a world of climate change and socio-economic development, oil is the strategic resource that is closely intertwined and interdependent. Tracing the evolution of petroleum resources flow is fundamental to understanding petroleum supply and demand, and can also serve as the basis for assessing CO2 emissions from petroleum products. This paper aims to provide a petroleum products flow accounting framework that divides petroleum flow into four phases, three flows, three libraries, and two processes, and summarizes the approach to measure and analyze petroleum resources flows. It takes China as an example for empirical research, and finds that： ①China＇s petroleum production, consumption and import have significantly increased over the past two decades, and the combination of increasing demand and limited supply have created an urgent need for China to diversify its petro-leum sources globally to ensure its oil security.②Final consumption accounts for the use of most petroleum products and special attention should be paid to the losses in the petroleum refining process. ③With the exception of crude oil, petroleum product flows among various sectors has changed greatly. Particularly, the flow of petroleum products into transport and residential consumption has trended upward significantly, whereas the flow to industry is trending downward.④CO2 emission data shows that CO2 emission amounts increased rapidly from 456Mt in 1993 to 1517Mt in 2013. Previously, the top three C02 emitters were the industrial sector, the transport sector including the transport, storage and post segments, and the thermal power sector. Currently, the largest emitters are the transport sector, the industrial sector and the residential consumption sector. Finally, poorly demarcated system boundaries and incomplete databases and models constrain research on industry flows of petroleum resources for non-energy use.
China＇s energy security situation is increasingly severe. There are many challenges and opportunities in the energy development sector. Bio-fuel has much superiority： abundant resources, product diversification, recycling and increasing rural income. Speeding up bio-fuel development should be a strategic direction for China. In this study we evaluate the relationship between bio-energy utilization and food security using the grey relational analysis method. The results show that China＇ s biomass energy development has caused little negative impact on food security as determined by agricultural production. However, that does not mean China＇s bio-energy can develop in an unrestricted way. Developing bio-energy requires the consideration of many factors, including large investment in the short term and fierce competition from biomass supply.
The mining industry has made outstanding contributions to China＇s economic and social development, but a series of environmental problems remain. As Green Mines and ecological civilization concepts are put forward the relationship between people and nature is receiving more attention, and especially mining ethics. Present construction standards encompass legal mining, management standardization, comprehensive utilization, technological advancement, energy saving and waste reduction, environmental protection, land reclamation, harmonious community and enterprise culture. As at 2014 the Chinese Ministry of Land and Resources had published 661 Green Mines. Here, we analyze the present situation and prospects of Green Mines in China by the distribution from regional and mine type perspectives. Green Mines are nearly spread over every province and mine type, but Eastern China participated earlier than other areas. We discuss constructing Chinese mining ethics on the basis of traditional ethics and Western ecological ethics as theoretical foundations and practices. We consider that the significance of building Chinese mining ethics in Green Mine construction includes promoting social responsibility, improving environmental protection awareness and accelerating society development. Under the guidance of Chinese mining ethics we propose mining enterprise development models for the future, such as comprehensive uti-lization, circular economy and community harmony.
