| 农村生活再生水灌溉调控对稻田养分的影响 |
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| 引用本文： | 陈苏春,胡静博,肖梦华,胡秀君.农村生活再生水灌溉调控对稻田养分的影响[J].排灌机械工程学报,2022,40(4):411-418. |
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| 作者姓名： | 陈苏春 胡静博 肖梦华 胡秀君 |
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| 作者单位： | 1. 永康市水资源供水管理中心, 浙江 永康321300; 2. 杭州萧山水利水电勘察设计有限公司, 浙江 杭州311200; 3. 浙江省水利河口研究院(浙江省海洋规划设计研究院), 浙江 杭州310020;4. 浙江水利水电学院浙江水利与海洋工程研究院, 浙江 杭州310018 |
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| 摘 要： | 选择符合农田灌溉水质要求的3种灌溉水源(农村生活污水一级处理水R1、二级处理水R2、河道清水R3),3种灌溉水位调控(低水位W1蓄污(雨)上限为50～70 mm,中水位W2蓄污(雨)上限为50～100 mm,高水位W3蓄污(雨)上限为50～150 mm),用以开展不同灌溉水源和水位调控对稻田土壤氮素和有机质养分的影响研...
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| 关 键 词： | 再生水 水位调控 稻田 氮素 有机质 |
| 收稿时间： | 2021-06-04 |
Effects of irrigation regulation of rural domestic reclaimed water on soil nutrients in paddy field |
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| CHEN Suchun,HU Jingbo,XIAO Menghua,HU Xiujun.Effects of irrigation regulation of rural domestic reclaimed water on soil nutrients in paddy field[J].Journal of Drainage and Irrigation Machinery Engineering,2022,40(4):411-418. |
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| Authors: | CHEN Suchun HU Jingbo XIAO Menghua HU Xiujun |
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| Abstract: | In order to study the effects of different irrigation water sources and water level regulation on soil nitrogen and organic matter nutrients, three irrigation water sources(rural domestic sewage primary treatment water R1, secondary treatment water R2, river clear water R3)and three irrigation water level regulations(the upper limit of sewage(rain)storage at low water level W1 is 50-70 mm, that at medium water level W2 is 50-100 mm, and that at high water level W3 is 50-150 mm)were selected to meet the requirements of farmland irrigation water quality. The results showed that NH4+-N was the main nitrogen in 0-40 cm soil layer, NO3-N content was low, NH4+-N was relatively stable, and there existed a changing trend of ″as one falls, another rises″, NO3-N was easier to migrate and accumulate with water. Irrigation with primary treatment water of rural domestic sewage can significantly improve the content of soil organic matter. Different water level regulations had significant effect on NO3-N content in 60-80 cm soil layer(P<0.05), and different water source irrigations had significant effect on soil organic matter content in 0-20 cm soil layer(P<0.05). Reclaimed water irrigation can significantly improve the yield of rice, and the average yield of rice under R1 water source irrigation was 1.5% and 14.3% higher than that under R2 and R3 water source irrigations, respectively. |
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| Keywords: | reclaimed water water level regulation paddy field nitrogen organic matter |
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