A Daily Water Balance Modelling Approach for Simulating Performance of Tank-Based Irrigation Systems

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• 作者：Qiongfang Li and John Gowing
• 关键词：irrigation ; modelling ; tank ; water balance ; Sri Lanka
• 刊名：Water Resources Management
• 出版年：2005
• 出版时间：June 2005
• 年：2005
• 卷：19
• 期：3
• 页码：211-231
• 全文大小：356 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Hydrogeology
  Geotechnical Engineering
  Meteorology and Climatology
  Civil Engineering
  Environment
  
• 出版者：Springer Netherlands
• ISSN：1573-1650

文摘

Tanks are small reservoirs, which are widely distributed in South India and Sri Lanka, where they represent an important water resource for people, crops, livestock and fish. Considerable efforts have been made to rehabilitate tank irrigation systems in recent decades, but there have been few studies carried out to improve understanding of their hydrology. This paper presents a daily water balance approach, which aims to simulate the dynamic behaviour of tank storage. The model was validated over four seasons for two representative tanks within Mahaweli System H, a major irrigation system in the dry zone of Sri Lanka. Use of the model to evaluate current performance and scope for improvement is demonstrated.