Regional Water Footprint Assessment: A Case Study of Leshan City

Sustainability

Rui Zhao¹  Hualing He¹  Ning Zhang²  Yongrok Choi³  Malin Song³ 

[1] Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China;;Department of Economics, Jinan University, Guangzhou 510632, China;Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China

关键词: water footprint;    water footprint assessment;    Leshan City;    water resources management;   

DOI  :  10.3390/su71215829

来源: mdpi

【 摘 要 】

This paper presents an assessment of urban water footprint in the period of 2001 to 2012 by taking Leshan City, China as a typical case study. The water footprint is calculated by the sum of the water footprints of various sectors, i.e., crop production, animal products, industrial processes, domestic waster, eco-environment, and virtual water trade. Results show that the water footprints of the various sectors rose by degrees varying from 19% to 55%, which gave rise to an increase of the total water footprint of 43.13% from 2001 to 2012. Crop production and animal products are identified as the major water intensive sectors, accounting for about 68.97% of the total water footprint. The water footprint in the Northeastern area of Leshan City is greater than that of the Southwestern area in the period 1992–2012, resulted in an expansion of water footprint in the Sha Wan and Wu Tongqiao Districts due to the development of urbanization. The application of water footprint assessment is expected to provide insight into the improvement of urban water efficiency, and thus aid in better water resources management.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.