| 湖北省中稻灌溉定额修订研究 |
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| 作者单位： | ;1.湖北省水利水电科学研究院\湖北省节水研究中心;2.武汉大学 |
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| 摘 要： | 湖北省现行灌溉用水定额标准颁布于2003年,已难以适应当前及今后的水资源管理需求。【目的】为更全面真实地反映湖北省中稻现状灌溉用水水平。【方法】本文分析了湖北省各分区中稻作物系数、稻田渗漏量、泡田期水面蒸发量、饱和需水量、生育期、水层控制标准等灌溉定额计算参数。【结果】基于中稻灌溉定额影响因素分析,提出了人工、机械2种耕作方式与浅灌适蓄、间歇灌溉2种灌溉模式组合下不同分区不同频率的中稻灌溉定额。定额修订成果表明,先进的灌溉模式和耕作方式都能够有效降低中稻灌溉定额,促进农业节水。【结论】目前,湖北省一般适用机械耕作、浅灌适蓄条件下的中稻灌溉定额,对于水源和灌溉工程设施条件较好的地区建议采用机械耕作、间歇灌溉条件下的灌溉定额。
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| 关 键 词： | 中稻 灌溉定额 计算参数 耕作方式 灌溉模式 |
Study on Revision of Middle Rice Irrigation Quota in Hubei Province |
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| Institution: | ,Hubei Water Resources Reserarch Institute\Hubei Water Saving Research Center,Wuhan University |
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| Abstract: | The current irrigation water quota standard of Hubei Province was promulgated in 2003, which has been difficult to meet the current and future water resource management needs.【Objective】It is necessary to revise the irrigation quota in order to reflect the current irrigation water level of mid-season rice in Hubei Province more comprehensively and truly.【Method】In this paper, the calculation parameters of irrigation quota for midseason rice in different districts of Hubei Province were analyzed,such as crop coefficient, leakage of paddy field, water surface evaporation in paddy field, saturated water demand, growth period and water layer control standard. 【Result】Based on the analysis of influencing factors of mid-season rice irrigation quota, the mid-season rice irrigation quota of different zones and frequencies under the combination of artificial and mechanical tillage modes and shallow irrigation and intermittent irrigation modes was put forward.The results of the quota revision showed that the advanced irrigation mode and tillage mode can effectively reduce the irrigation quota of midseason rice and promote water saving in agriculture.【Conclusion】At present, the irrigation quota of mid-season rice under mechanical tillage and shallow irrigation is generally applicable in Hubei Province. For areas with better water source and irrigation facilities, the irrigation quota under mechanical tillage and intermittent irrigation is recommended. |
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| Keywords: | mid-season rice irrigation quota calculation parameters tillage mode irrigation mode |
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