焦作市工业行业的生态效率

以工业城市焦作市为例,选择工业能源消费和污染物(包括废水、固体废物、SO2、烟尘等)排放作为环境负荷,定量分析工业分行业的生态效率及分行业特定环境负荷对总环境负荷的贡献率.结果表明,能源效率最高的行业是黑色金属矿采选业(FMM),为43.19万元·tce-1,贡献率为0.003%;废水排放相关环境效率最高的是交通运输设...

Eco-efficiency of Jiaozuo Industry Sectors

Jiaozuo city was taken as a representative industry city and its industry energy consumption and industry emissions such as wastewater,solid waste,SO₂,dust and so on were selected as corresponding environmental loads.The contribution rate to the environmental loads and eco-efficiencies of Jiaozuo industry sectors were analyzed quantitatively.The results show that,the industry sector with the highest energy eco-efficiency is Mining and Processing of Ferrous Metal Ores (FMM),43.19×10⁴ yuan·tce^-1,and its contribution rate is 0.003%;the one with the highest wastewater-related eco-efficiency is Manufacture of Transport Equipment (TRM),3.58×10⁴ yuan·t^-1,and its contribution rate is 0.0001%;the one with the highest solid waste-related eco-efficiency is Manufacture of Special Purpose Machinery(SMM),323.22×10⁴ yuan·t^-1,and its contribution rate is 0.005%;the one with the highest SO₂ emission-related eco-efficiency is Manufacture of Special Purpose Machinery(SMM),19.74×10⁴ yuan·kg^-1,and its contribution rate is 0.0001%;the one with the highest dust emission-related eco-efficiency is Manufacture of Rubber(RUM),6.75×10⁴ yuan·kg^-1,and its contribution rate is 0.001%.It can be seen that the industry sector with high value of eco-efficiency always contributes less to its environmental load,which results that the industry sectors with high eco-efficiencies only play a weak role in leading the overall industry eco-efficiency.A succinct distance index (SDI) was proposed to estimate the differences between Jiaozuo and China average for their eco-efficiency of every industrial sector.The values of SDI range from -1 to 63.45,and the absolute value of SDI with positive value is much greater than that with negative value,which indicates that the values of eco-efficiencies for the advanced industry sectors of Jiaozuo city are much higher than those for China's industry sectors average.