The economic and ecological aspects of a social system are coherently linked and can be examined by its material and energy *** this study,we used the material flow analysis(MFA)to model the materialinput and output ...
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The economic and ecological aspects of a social system are coherently linked and can be examined by its material and energy *** this study,we used the material flow analysis(MFA)to model the materialinput and output of the Wujin District of Changzhou City,Jiangsu Province in *** was revealed that:(1)total materialinput and materialinput per capita increased with economic development,while the total material out-put and materialoutput per capita decreased consistently;(2)except for water,the total materialinput continued to *** of solid materials grew faster than that of gaseous materials,while the total materialoutput *** gas output accounted for the largest pro-portion of the output resulting in primary environmental pollution as burned fossil fuel;(3)water use in agriculture continued with an increasing trend while that in industrial and residential sectors decreased per *** total wastewater discharge and wastewater discharge per capita decreased with a faster decreasing rate of residential was-tewater discharge followed by industrial wastewater discharge;(4)materialinput per unit GDP fluctuated and materialoutput per unit GDP decreased.A decreasing trend in both water use and wastewater discharge per unit GDP was *** results suggest that the efficiency of resource use in the Wujin District has *** weakened the direct link between economic development and environmental ***,we discussed the harmonic development between environment and *** limitations of MFA’s application were also *** is suggested that effective measures should be taken for the enforcement of cir-cular economic strategies and the construction of a resource-saving economy.
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