To support more sustainable development of a region, decision support tools must consider local and global systems level impacts on the economy, environment, and society. Through the development and application of "eco- nomic input-output water resources" models for Beijing, China for the years 1985, 1990, and 1992, historical trends related to the economy structure and its water use are investigated. The study finds that the economy of Beijing and water use are highly concentrated in agriculture and heavy industry, but this intensive water use is indirectly reflected in the production of most other goods and services throughout the economy because of the interrelationships among various sectors of the economy. In spite of progress during the time period observed (e.g., between 1985 and 1990 the output of the economy doubled, but water consumption increased only 12% partly because of a significant increase in the price of water in 1988) and given the seriousness of water resources issues in the region, it is critical that future regional development make progress toward a more water-efficient economic system. Resume : Des outils d'aide a la decision doivent tenir compte des impacts des systemes « locaux » et « globaux » sur l'economie, l'environnement et la societe afin de supporter un developpement plus durable d'une region. Les tendances historiques de la structure de l'economie et de son utilisation de l'eau sont etudiees par le developpement et l'utilisa- tion de modeles economiques des entrees-sorties des ressources en eau pour Beijing, en Chine, pour les annees 1985, 1990 et 1992. L'etude montre que l'economie de Beijing et son utilisation de l'eau sont tres concentrees sur l'agricul- ture et l'industrie lourde mais, en raison des interrelations entre les secteurs economiques, cette utilisation intensive de l'eau se reflete indirectement dans la production de la plupart des autres biens et services de cette economie. Malgre le progres realise durant la periode a l'etude (c.-a-d. entre 1985 et 1990, le rendement de l'economie a double, mais la consommation d'eau n'a augmente que de 12 %, probablement en raison d'une augmentation importante du prix de l'eau en 1988). Etant donne la gravite des questions touchant les ressources en eau dans la region, il est important que le futur developpement regional progresse vers un systeme plus economique et plus efficace de gestion de l'eau. Mots cles : planification des ressources en eau, gestion des eaux en milieu urbain, modelisation des entrees-sorties.
[1]
Karen R. Polenske,et al.
Chinese economic planning and input-output analysis
,
1991
.
[2]
Sen-dou Chang,et al.
Beijing: perspectives on preservation, environment, and development
,
1998
.
[3]
Brian D. Fisher,et al.
University of British Columbia
,
2002,
INTR.
[4]
L. Macaskie,et al.
Microbially-enhanced chemisorption of heavy metals : A method for the bioremediation of solutions containing long-lived isotopes of neptunium and plutonium
,
1998
.
[5]
Zeng Guang.
Environmental input-output model and its analysis with a focus on the solid waste management sectors
,
2000
.
[6]
W. Leontief.
Environmental Repercussions and the Economic Structure: An Input-Output Approach
,
1970
.
[7]
Wassily Leontief.
Input-Output Economics
,
1966
.
[8]
Eve Hou.
Nine dragons, one river : the role of institutions in developing water pricing policy in Beijing, PRC
,
2001
.
[9]
Arpad Horvath,et al.
Economic Input–Output Models for Environmental Life-Cycle Assessment
,
1998
.
[10]
S. Joshi.
Product Environmental Life‐Cycle Assessment Using Input‐Output Techniques
,
1999
.