| 宁夏大型灌区续建配套与节水改造项目——以第二农场渠为例 |
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| 引用本文： | 赵明兰,张菊,李旺琦.宁夏大型灌区续建配套与节水改造项目——以第二农场渠为例[J].农业工程,2012,2(9):41-45. |
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| 作者姓名： | 赵明兰 张菊 李旺琦 |
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| 作者单位： | 石嘴山市水利勘测设计院有限公司，石嘴山753000 |
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| 摘 要： | 宁夏大型灌区续建配套与节水改造项目自1998年启动实施以来，灌区骨干工程安全状况有了较大改观，渠道综合调控能力不断增强，全灌区节水意识进一步提高，灌区“两改一提高”工作稳步推进，除险保安、节水增效成果显著。但由于灌区水利工程大多是20世纪五六十年代在原有基础上改造和修建的，灌区规模大，历史遗留问题多，水利基础设施薄弱，改造需求量大，加之投入有限，目前灌区仍存在水资源综合调控体系不完善、渠道砌护率低、大型泵站老化严重、沟道排水不畅、骨干渠系防洪体系脆弱、管理设施差等突出问题，灌溉水利用系数只有0.41，成为全国老化失修最严重的灌区之一。
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| 关 键 词： | 大型灌区 第二农场渠 节水灌溉 续建改造 难点及措施 |
Irrigation District Rehabilitation and Water-saving Corollary Reform
Project in Ningxia Large-sized Irrigation District
Taking the Second Farm Canal as Case |
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| Zhao Minglan,Zhang Ju and Li Wangqi.Irrigation District Rehabilitation and Water-saving Corollary Reform
Project in Ningxia Large-sized Irrigation District
Taking the Second Farm Canal as Case[J].Agricultural Engineering,2012,2(9):41-45. |
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| Authors: | Zhao Minglan Zhang Ju and Li Wangqi |
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| Institution: | (Shizuishan City Water Conservancy Survey and Design Institute Co.Ltd.,Shizuishan 753000,China) |
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| Abstract: | Ningxia large-sized irrigation district rehabilitation and water-saving corollary projects started in 1998.Comprehensive control capacity of channels was increased.Water-saving awareness in whole irrigation district area had further improved.‘Two changes and one improvement’ project was steadily promoted.Some measures like control and reinforcement water，conservation and efficiency，and so on had achieved remarkable results.However，most of irrigation district water conservancy were transformation and build on the basis of the original in the 1950s and ′60s.Because of some questions（large scale of irrigation district，lots of issues left over from history，weakness of irrigation works infrastructure，large demand of reform，and limitations of financial investment），some outstanding issues（imperfection of water resource integrated control system，low rate of canal lining，serious aging of large scale pumping station，poor drainage，weak flood-prevention system of main channel，lack of management facilities，and so on）had to be resolved.Utilization coefficient of irrigation water was only 0.41.So this irrigation district had become one of the most seriously aging irrigation areas. |
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