Climate Change Research ›› 2015, Vol. 11 ›› Issue (2): 111-114.doi: 10.3969/j.issn.1673-1719.2015.02.005

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Impacts of Precipitation Change on Water Supply and Demand in Haihe River Region During 1956-2010

Cao Jianting1, Qiu Bing1, Xia Jun2   

  1. 1 General Institute of Water Resources and Hydropower Planning and Design, Ministry of Water Resources, Beijing 100120, China; 
    2 State Key Laboratory of Water Resources & Hydropower Engineering Sciences, Wuhan 430072, China
  • Received:2014-06-13 Revised:2015-01-08 Online:2015-03-30 Published:2015-03-30
  • Contact: Jian-Ting CAO;

Abstract: Based on China’s water resources assessment and water resources bulletins, time series of precipitation, water resource, and water demand projection in base year were established, and the impacts of precipitation changes on water supply and demand in Haihe River region were analyzed by comparison in two phases namely 1956-1979 and 1980-2010. The results showed that the decrease of precipitation significantly reduces water resources 8.6 billion m3 and increases the amount of water demand 2.2 billion m3 annually during 1980-2010. Socioeconomic water scarcity caused by precipitation change is 7.7 billion m3, occupying 75% of the total water scarcity. The precipitation decreasing aggregates the conflicts between water demand and supply.

Key words: water supply, water demand, precipitation change, Haihe River region

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