[pp.51-60]

Analysis of Material Stock Accumulated in Residential Building & Transport Infrastructures and its Regional Disparity in

Licheng ZHENG, Ji HAN and Hiroki TANIKAWA （Nagoya University）

Abstract:
Material stock is an effective indicator of infrastructure level and one of the major determinants of future urban metabolism in China. To develop policies towards sound material utilization and a regional harmonious society, this study estimated the evolution of material stock from residential buildings and transport infrastructures including roads and railways in 31 provinces from 1978 to 2008 based on a material-stock accounting method. Moreover, we investigated the regional disparities not only for the economy but also for the material stock using the Theil index method. The results indicated that the total amount of material stock in China increased from 3.2 billion tons in 1978 to 39.6 billion tons in 2008. This change was mainly caused by material stock accumulated in residential buildings and roads. Material stock decreased spatially from the east and coast regions to the inland areas. Both the material stock and the GDP disparities are predominantly affected by inter-regional disparities. The weak economic foundation and inefficient utilization of material made middle and western regions keep higher material stock intensities while less developed economy. Efficient utilization of building and infrastructure material stock should be promoted to improve development and reduce regional disparities in poor economic regions.

Key Word:
material stock accounting, infrastructure, regional disparity, Theil index

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