PROGRESS IN GEOGRAPHY ›› 2010, Vol. 29 ›› Issue (9): 1041-1048.doi: 10.11820/dlkxjz.2010.09.003

• Original Articles • Previous Articles     Next Articles

Framework for Water Scarcity Assessment and Solution at Regional Scales: A Case Study in Beijing-Tianjin-Tangshan Region

LI Jiuyi1, LI Lijuan1, LIU Yumei1,2, LIANG Liqiao1, LI Bin1,2   

  1. 1. Institute of Geographic Sciences&Natural Resources Research, CAS, Beijing 100101, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-01-01 Revised:2010-05-01 Online:2010-09-25 Published:2010-09-25


Water scarcity risk assessment is a research hotspot worldwide. Regional scale risk assessment is more complex than that at a city scale because of the internal differences. A water scarcity risk assessment and decision-making system as established at a regional level in this article, which constituted by four indexes, i.e. the demand satisfaction index, the demand reliability index, the rate of water resources utilization, and water-use efficiency. A case study in the Beijing-Tianjin-Tangshan region was conducted. The results show that the water scarcity risk level of Beijing, Tianjin, Chengde and Zhangjiakou is lower in 2020, better than the present situations. The risk level of Qinhuangdao is moderate, and that of Tangshan and Langfang is high. Saving water and unconventional water use should be wildely adopted in this region. Besides, water supply to Tangshan should be increased to reduce the water scarcity risk. In Langfeng, agricultural water demand should be decreased by reducing the multiple cropping indexes. This system can directly reflect the probability of water scarcity and the capacity to avoid risks. Reasonable water resource management decision -making can be made based on this study because the characteristics of regional water scarcity are clearly revealed by the four indexes.

Key words: Beijing-Tianjin-Tangshan region, risk assessment, risk solution, water scarcity