JOURNAL OF NATURAL RESOURCES ›› 2016, Vol. 31 ›› Issue (6): 920-935.doi: 10.11849/zrzyxb.20150599

• Resource Utilization and Management • Previous Articles     Next Articles

Test on Convergence Trait of Water Resource Intensity in Mainland China: An Empirical Research Based on Panel Data at Provincial Level

ZANG Zheng1, ZOU Xin-qing   

  1. 1. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023, China;
    2. Collaborative Innovation Center of South China Sea Studies, Nanjing 210093, China
  • Received:2015-05-29 Online:2016-06-20 Published:2016-06-20
  • Supported by:
    National Key Basic Research Program of China, No. 2013CB956503;National Natural Science Foundation of China, No. 41471431;National Basic Science Personnel Training Fund, No. J1103408.

Abstract: Aimed at comprehensive evaluation on water resources utilization efficiency of each water sector in mainland China, this paper, referencing the connotation of energy intensity, defined the concept of water resource intensity, water resource relative intensity from the viewpoint of compound system. With the panel data of water sectors, the convergence trait of water resource intensity in mainland China from 2003 to 2013 was tested. The results showed that the inter provincial variations of residential water intensity and agricultural water intensity were smooth and steady, showing no obvious σ-convergence; the industrial water intensity showed the trend of divergences-steady-converges; the σ-convergence of eco-environmental water intensity fluctuated greatly but the convergence rate was big and the inter provincial differences narrowed rapidly. Water resources relative intensity in 80% provinces of mainland China received continuous positive influence. They were not influenced by the short-term impact and did not show stochastic convergence trait. Water resource intensity of each water sector showed β-absolute convergence. Convergence rate was 3.17% (for residential water), 4.21% (for agricultural water), 1.82% (for industrial water) and 12.41% (for eco-environmental water), respectively. Eco-environmental water intensity in eastern China, residential water and eco-environmental water intensity in western China, and water resource intensity of all the water sectors in the middle showed club convergence. The β-conditional convergence occurred in all the water sectors. The major driving forces on the convergence of residential water, industrial water and eco-environmental water were proportion of tertiary industrial, standard reaching-rate of industrial wastewater discharge and annual precipitation, respectively. The major restrict factors on convergence of residential water, industrial water and eco-environmental water were total export-import volume, GNP per capita and standard reaching-rate of industrial wastewater discharge, respectively.

Key words: convergence, econometric model, mainland China, resources science, water resource intensity

CLC Number: 

  • F062.1