资源科学 ›› 2018, Vol. 40 ›› Issue (12): 2351-2359.doi: 10.18402/resci.2018.12.03

• 专栏:中国钢铁物质流研究 • 上一篇    下一篇

中国房屋建筑中钢铁存量的时空变化

韩中奎1,2,3(), 文博杰1,3(), 代涛1,3, 李强峰1,3, 王欢1,2,3, 冯旭光4   

  1. 1. 中国地质科学院矿产资源研究所,北京 100037
    2. 中国地质大学(北京)地球科学与资源学院,北京 100083
    3. 中国地质科学院全球矿产资源战略研究中心,北京 100037
    4. 中国科学院青岛海洋研究所,青岛 266000
  • 收稿日期:2018-07-09 修回日期:2018-11-07 出版日期:2018-12-20 发布日期:2018-12-10
  • 作者简介:

    作者简介:韩中奎,男,河南周口人,硕士生,主要从事资源产业经济方面研究。E-mail: mr.ziyu@qq.com

  • 基金资助:
    中国地质调查局地质调查项目(121201103000150015);国家自然科学基金重点项目(71633006)

Temporal and spatial changes of iron stocks in China's housing construction

Zhongkui HAN1,2,3(), Bojie WEN1,3(), Tao DAI1,3, Qiangfeng LI1,3, Huan WANG1,2,3, Xuguang FENG4   

  1. 1. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
    2. School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China
    3. Research Center for Strategy of Global Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
    4. The Institute of Oceanology, Chinese Academy of Science, Qingdao 266000, China
  • Received:2018-07-09 Revised:2018-11-07 Online:2018-12-20 Published:2018-12-10

摘要:

建筑业是中国最大的钢铁消费领域,动态分析建筑中的钢铁存量的变化特征,有助于把握其二次资源回收潜力,为铁资源的循环利用及相关管理提供科学支撑。本研究以动态物质流分析结合生命周期分布函数,测算了1949—2016年中国房屋建筑中的钢铁存量。结果显示:经过缓慢增长期、稳定增长期和快速增长期三个阶段后,中国房屋建筑中钢铁存量从1949年的10.0万t增长到2016年的28.1亿t,房屋建筑中人均钢铁存量也从0.2kg/人增加到2029kg/人;受工业化和城镇化进程影响,中国四大经济区域房屋建筑中人均钢铁存量差别明显,2016年东部地区房屋建筑中人均钢铁存量最大为2526kg/人,其次是东北地区2128kg/人、中部地区1732kg/人和西部地区1605kg/人;受城镇和农村的生活环境、经济水平差异影响,中国城乡房屋建筑中人均钢铁存量差异显著,2016年中国房屋建筑中城镇人均钢铁存量达3145kg/人,农村为530kg/人。

关键词: 物质流分析, 房屋建筑, 钢铁存量, 时空变化, 中国

Abstract:

At present, the construction industry is China’s largest iron consumption sector. Understanding the stock of iron in construction helps to accurately grasp the utilization of iron resources in construction and provide support for the management and recycling of iron resources. This study implemented dynamic material flow analysis combined with life cycle distribution function to quantitatively analyze the usage and recycling of iron in buildings, which was based the stock of iron in China's housing construction from 1949 to 2016. The results show that with three periods of quiet growth period, slow growth period, and rapid growth period, the iron stock in China's housing construction increased from 100 000 tons in 1949 to 2.81 billion tons in 2016. The per capita iron stock in housing construction also increased from 0.2 kg per capita to 2029 kg per capita in China. Both of above are still in a period of rapid growth stage. There is a great potential for iron recovery in housing construction in the future. Due to the impact of industrialization and urbanization, the per capita iron stocks in housing construction of the four major economic regions are significantly different in China. In 2016, the largest iron stock per capita in housing construction in the eastern region was 2526 kg per capita, followed by 2128 kg per capita in the northeast region, 1732 kg per capita in the central region, and 1605 kg per capita in the western region. Affected by differences in the living environment and economic level of urban and rural areas, the per capita iron stock in China's urban and rural areas are significantly different. In 2016, the per capita iron stock of urban residents in China's housing construction reached 3145 kg per capita. However, this number was 530 kg per capita in rural areas.

Key words: material flow analysis, housing construction, iron stock, Temporal and spatial changes, China