Study on Effect Decomposition of Spatial-Temporal Difference in Water Consumption in Jiangsu, Zhejiang and Shanghai

摘要

In this paper, we use complete decomposition model to analyze the temporal and spatial differences and driving effect of water consumption in Jiangsu, Zhejiang and Shanghai from the four effects of population size, economic development level, industrial structure and industrial water use intensity. The results show that: (1) the driving effect of water consumption change in Jiangsu Province is the effect of economic development level, that in Zhejiang Province is the effect of industrial water use intensity, while that in Shanghai is first the effect of economic development level, which later transfers to effect of industrial water use intensity; (2) the change in water consumption in time dimension is mainly due to the effects of economic development level and industrial water use intensity, while that in space dimension is mainly due to the effects of industrial structure and population size; According to the conclusion, job position adjustment, etc. is proposed so that population structure and quantity can be adjusted and effect of population size can be reduced.