城市矿产钢铁资源社会蓄积量估算——以江西省为例  

Estimation of social stock of steel resources in urban mining:a case study of Jiangxi Province

作　　者：陆展韬 陈优良[1,2] 杨学习 LU Zhantao;CHEN Youliang;YANG Xuexi(School of Civil and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;School of Geosciences and Info-Physics,Central South University,Changsha 410083,China)

机构地区：[1]江西理工大学土木与测绘工程学院,赣州341000 [2]中南大学地球科学与信息物理学院,长沙410083

出　　处：《江西冶金》2025年第1期39-46,共8页Jiangxi Metallurgy

基　　金：湖南省高科技成果转化及产业化计划项目(2020SK2007)。

摘　　要：钢铁因其具有强度高、耐久性强等特性,已广泛应用于建筑、机械制造、交通运输、能源等领域,且随着城镇化和工业化进程加快,其需求量呈逐年增加的态势。如何估算钢铁资源社会蓄积量是城市矿产研究的热点问题。以江西省为例,结合钢铁产品的单位铁含量数据,运用自下而上的物质流分析方法,系统地估算了江西省1990—2021年建筑物和基础设施中钢铁资源的社会蓄积量,并分析其时间演变特征。结果表明,江西省钢铁资源的社会蓄积量自1990年以来呈逐年增长的趋势。其中,建筑物钢铁蓄积量增幅最大,特别是在城镇住宅建筑和非住宅建筑领域。同时,基础设施领域的钢铁蓄积量也随着市政、路桥、电力等基础设施建设的不断加强而稳步增长。通过进一步分析建筑物结构的演变、基础设施建设的进展和钢铁使用量的变化趋势,揭示了经济发展、产业转型和城市化进程对钢铁资源蓄积量的影响。最后提出了对江西省钢铁资源回收和再利用的政策建议,为实现可持续发展和资源循环利用提供科学依据。Steel,with its high strength and durability,is widely used in construction,machinery manufacturing,transportation,energy and other fields.As urbanization and industrialization accelerate,the demand for steel has been increasing year by year.Estimating the social stock of steel resources is a key issue in urban mining research.Using Jiangxi Province as a case study,this paper systematically estimates the social stock of steel resources in buildings and infrastructure from 1990 to 2021 by employing a bottom-up material flow analysis method,combined with data on the iron content of steel products.The temporal evolution characteristics of steel resource accumulation is also analyzed.The results indicate that the social stock of steel resources in Jiangxi Province has been steadily increasing since 1990.The largest increase in steel stock is found in buildings,especially in urban residential and non-residential construction.Meanwhile,the steel stock in the infrastructure sector has also grown steadily in line with the strengthening of municipal,road,bridge and power infrastructure.Further analysis of the evolution of building structures,the progress of infrastructure development,and changes in steel usage trends reveals the impact of economic development,industrial transformation,and urbanization on steel resource accumulation.Finally,policy recommendations for the recycling and reuse of steel resources in Jiangxi Province are proposed,providing a scientific basis for sustainable development and resources recycling.

关 键 词：钢铁 城市矿产 建筑 基础设施 社会蓄积量 

分 类 号：F407.3[经济管理—产业经济] TF-9[冶金工程]