斗渠
dǒu qú
- lateral canal;head ditch
斗渠 斗渠
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[lateral canal] 由支渠引水到毛渠或灌区的渠道
斗渠[dǒu qú]
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研究区内干渠、支渠、斗渠以混凝土或砖石衬砌结构为主，农渠和毛渠主要是传统土质沟渠。
The agricultural ditch system included trunk canal , branch canal and lateral canal , which were made by concrete or block stones . And terminal canals were soil-beded .
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灌溉渠道支斗渠轮灌配水与引水时间优化模型
Optimal Model of Rotation Irrigation Distribution Channel and Branch Canal and Delivery Time
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结果干渠与斗渠的钉螺死亡率变化呈相同趋势，并高度相关；
Results The death rate of snails in the channel and that in the small ditch was significantly related .
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然而，斗渠以下供水末级渠系维护费缺乏统一的核算标准，影响了终端水价改革的推进。
However , there is no standardized accounting method for maintenance cost of sub-irrigation system and it has hindered development of terminal water price reform .