福建省铜、铁、铝城市矿产蓄积量研究

城市矿产是可被循环利用的二次资源，其蓄积量（在用存量）对缓解资源压力、促进循环经济发展具有重要意义。论文以福建省为例，采用自下而上法核算了1978—2016年福建省的铜、铁、铝的在用存量。结果表明：1）1978—2016年福建省铜、铁、铝的在用存量分别增长了10倍、15倍和22倍，2016年分别达到240万t、2.9亿t和740万t；2）2016年福建省人均铜、铁、铝在用存量分别达到58 kg/人、7.6 t/人和191 kg/人，但仍然低于发达国家平均水平；3）从分布结构来看，基础设施部门的铜在用存量占比最大（62%），其中电力电缆为铜城市矿产的主要来源，建筑部门的钢铁和铝在用存量占比最大（分别为80%和40%），其中住宅建筑为钢铁和铝城市矿产主要种类。此外本研究还建立了福建省长时间尺度的铜、铁、铝的产品存量数据库，基于该数据库分析了福建省铜、铁、铝在用存量的规模、增长模式、种类及部门分布结构，研究结果对未来福建省城市矿产的开发和利用提供了较为准确的数据支撑，同时为省级和城市层面的铜、铁、铝资源的管理提供科学依据及政策建议。

URBAN MINING ASSESSMENT OF COPPER,IRON AND ALUMINUM IN FUJIAN PROVINCE

Urban mining refer to the recyclable secondary resource, its stock is significant to mitigate resource pressure and promote circular economy. This paper uses an up-to-down way to calculate the in-use stock of copper, iron and aluminum in Fujian province during 1978 to 2016. The stocks of copper, iron and aluminum had increased by 10, 15 and 22 times, respectively, equivalent to 2.4, 290, and 7.4 million tons. In 2016, average stock per person of copper, iron and aluminum is 58kg, 7.6t and 191kg, far below the developed nations. Their sources indicate that infrastructure contribute to copper stock at most, up to 62%, most from electronic lines, construction contribute to iron and aluminum up to 80% and 40%, most from residence constructions. This research also sets up a long term stock database of copper, iron and aluminum for Fujian province, which is used to analyze their stock size, increment mode, category and department. This paper provides data support for Fujian to develop and use urban mining, and offers references for provincial or city management of copper, iron and aluminum resources.