Material Flow Accounting And Analysis Of Chinese Metal Minerals In The Exploitation

The exploitation of metal mineral resources on the one hand provides raw and processed materials for the development of the national economy, and promotes the development of the economy; on the other hand, the huge material input, consumption and output enormously impact on the environment. Material Flow Accounting and Analysis quantitatively state the material exchange between economic system and natural system, and measure input, outflow and material quantum being left in the economic system. Material Flow Analysis can objectively reflect the metabolizable scale of the economic system-Thuoughput. It can reflect the pressure of the economic activities to the environment. Material Flow Analysis replace monetary units with hundredweighs, pursue substance from the natural exploitation to human economic system, transfer in all kinds of human stages during the course of economic system, and at last come back to the nature. On the one hand, it can express and pursue material shifts which have not monetary value but deeply influence on the nature; on the other hand, it can also express this case that natural resources of other countries hold out the development of native economy and accord to this case when measuring the economic development and the using efficiency of resources. Because almost industrial products and necessaries of the people's livelihood are mainly made of metal minerals, Material Flow Accounting and Analysis to the exploitation of metal minerals has the important meaning.The study object of my thesis is the exploitation of Chinese metal mineral resources. And my thesis accounts and analyzes material flow. As results:First, the material input, consumption, trade balance and release of Chinese metal minerals can keep the increasing trend. TMR increases by 16.5%, DMI by 6.4%, DMC by 6.0%, TPO by 0.9% yearly.Second, the Eco-rucksacks and its coefficient of the exploitation of metal minerals totally keep increasing trend. Eco-rucksacks reach 4.6% yearly.Third, DMI of Chinese metal minerals and DMC mainly depend on Chinese resources.Fourth, comparing to main countries in the world, the excavating of Chinese metal minerals is in the former of the world, but the excavating per person is lower, at the same time theexploitation intension of Chinese metal minerals are strengthening.Fifth, by the population increasing, the exploitation or consume intension of Chinese metal mineral resources is rapidly increasing; the demanding of overseas metal mineral resources becomes stronger and stronger.Sixth, Material productivity (GDP/DMI) is increasing by 61.8%; Resources efficiency of material input (DMI/GDP) by 38.2%; Material use efficiency (DMC/GDP) by 41.2%. Seventh, in order to achieve the sustained development, must decrease the absolute quantum of TMR.