In recent years,scientists have been increasingly interested in the energy embodied in traded goods among countries.In this article,the direct energy intensities in various economic sectors of China were calculated wi...In recent years,scientists have been increasingly interested in the energy embodied in traded goods among countries.In this article,the direct energy intensities in various economic sectors of China were calculated with the data of energy consumption and output value of each sector,and the input-output table was used to estimate the external energy consumption.The total energy intensity of all sectors was then obtained.From the data of international trade,the energy embodied in goods trade of China was estimated for the period of 1994-2001.During this period,the average energy intensity of imported goods was always higher than that of exported ones.As a country with a surplus in international goods trade,China actually imported net embodied energy in the past few years.The net embodied energy imported was at the same magnitude of the imported energy in the form of fossil fuels.展开更多
Global climate change has been predicted to profoundlyinfluence carbon (C) processes and C stock dynamics interrestrial ecosystems [1]. Three papers recently publishedin Science China Life Science [2-4] studied variou...Global climate change has been predicted to profoundlyinfluence carbon (C) processes and C stock dynamics interrestrial ecosystems [1]. Three papers recently publishedin Science China Life Science [2-4] studied various aspectsof C stock dynamics at different scales in the northerngrasslands of China (including the Tibetan alpine meadow).展开更多
基金supported by NSFC (Grant no.70703008)Key Projects of Philosophy and Social Sciences Research of Chinese Ministry of Education (Grant no.07JZD0008)
文摘In recent years,scientists have been increasingly interested in the energy embodied in traded goods among countries.In this article,the direct energy intensities in various economic sectors of China were calculated with the data of energy consumption and output value of each sector,and the input-output table was used to estimate the external energy consumption.The total energy intensity of all sectors was then obtained.From the data of international trade,the energy embodied in goods trade of China was estimated for the period of 1994-2001.During this period,the average energy intensity of imported goods was always higher than that of exported ones.As a country with a surplus in international goods trade,China actually imported net embodied energy in the past few years.The net embodied energy imported was at the same magnitude of the imported energy in the form of fossil fuels.
文摘Global climate change has been predicted to profoundlyinfluence carbon (C) processes and C stock dynamics interrestrial ecosystems [1]. Three papers recently publishedin Science China Life Science [2-4] studied various aspectsof C stock dynamics at different scales in the northerngrasslands of China (including the Tibetan alpine meadow).
