Canal system planning is one of the important tasks in rehabilitation, corollary and water-saving reform planning of large-sized irrigation districts.

渠系规划是大型灌区续建配套与节水改造规划的重要内容。

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Water saving techniques include spray irrigation, micro irrigation, channel leakage prevention, low pressure pipe transport of water, reform of field irrigation, and so on.

节水技术包括：喷灌、微灌、渠道防渗、低压管道输水、田间灌水技术改进等。

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During the Tenth Five-Year period, favorable economic benefits, water-saving benefits and disaster-mitigation effects have been acquired in large-sized irrigation and drainage project reform in China.

“十五”期间，我国大型灌区灌排系统工程改造取得了良好的经济效益、节水效益和减灾效益，成果十分显著。

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