Uncovering
the Spatiotemporal Dynamics of Urban Infrastructure
Development: A High Spatial Resolution Material Stock and Flow Analysis
Version 2 2018-10-19, 21:44
Version 1 2018-10-15, 17:23
Posted on 2018-10-19 - 21:44
Understanding
the complexity and sustainability of infrastructure
development is crucial for reconciling economic growth, human well-being,
and environmental conservation. However, previous studies on infrastructure’s
material metabolism were mainly conducted on a global or national
scale, due largely to lack of more spatially refined data, and thus
could not reveal the spatial patterns and dynamics on a city scale.
Here, we integrated material flow analysis (MFA) and geographical
information system (GIS) data to uncover the spatiotemporal patterns
of the material stocks and flows accompanying the infrastructure development
at a high spatial resolution for the case of Shanghai, China. From
1980 to 2010, material stocks and waste output flows of Shanghai’s
infrastructure system exhibited a significant increase from 83 to
561 million metric tons (Mt) and from 2 to 17 Mt, respectively. Input
flows peaked in 2005 because of the economic slowdown and stepped-up
policies to cool the housing market. Spatially, the center and peri-urban
areas were the largest container of material stocks and biggest generator
of demolition waste, while suburban areas absorbed 58%–76%
of material inputs. Plans to make the city more compact will enhance
the service capacity of stocks but may also increase the use of more
energy and emissions-intensive construction materials (e.g., steel).
Prolonging the service lifetime of infrastructure through proper management
and increasing the recycling and reuse rate of demolition waste are
also identified as highly efficient strategies.
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Han, Ji; Chen, Wei-Qiang; Zhang, Lixiao; Liu, Gang (2018). Uncovering
the Spatiotemporal Dynamics of Urban Infrastructure
Development: A High Spatial Resolution Material Stock and Flow Analysis. ACS Publications. Collection. https://doi.org/10.1021/acs.est.8b03111
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AUTHORS (4)
JH
Ji Han
WC
Wei-Qiang Chen
LZ
Lixiao Zhang
GL
Gang Liu