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| 不同灌排模式稻田排水中氮磷流失规律 | |
| 引用本文： | 高焕芝,彭世彰,茆智,魏征,张正良,张杰.不同灌排模式稻田排水中氮磷流失规律[J].节水灌溉,2009(9). |
| 作者姓名： | 高焕芝 彭世彰 茆智 魏征 张正良 张杰 |
| 作者单位： | 1. 河海大学水,文水资源与水利工程科学国家重点实验室,江苏,南京,210098;河海大学现代农业工程学院,江苏,南京,210098 2. 河海大学水,文水资源与水利工程科学国家重点实验室,江苏,南京,210098 3. 武汉大学水利水电学院,湖北,武汉,430072 |
| 基金项目： | 国家自然科学重点基金项目(50839002);;“十一五”国家科技支撑计划项目(2006BAD11B09-3);;全国优秀博士学位论文作者专项基金(200546);;河海大学院士学科建设基金项目(2084/4021E7) |
| 摘 要： | 为了研究不同灌排模式稻田排水中氯磷流失规律,以集成合理的节水灌溉与控制排水技术,在江苏高邮开展田间试验.试验区排水斗沟出口处设水位调控闸门,在水稻不同生育阶段对排水沟水位及田间水分进行控制,形成新型的控制灌排模式.与常规灌排模式进行对比,两年田间试验成果表明,控制灌排模式较常规灌排模式节水16.7%,增产7.1%,排水总量减少54%,水稻全生育期稻田排水中NH4+;-N、NO3-N与TP流失总量分别减少38.07%、82.29%和52.15%,节水减排和降污效果显著.采用控制灌排模式,通过实施灌水调控和排水管理.控制了氮磷流失关键时期的排水量.高效利用了水分和养分,取得了节水高产、减排控污的效果. |
| 关 键 词： | 稻田 控制灌溉 控制排水 氮磷流失 |
N and P losses in Surface Drainage from Paddy Field under Different Irrigation and Drainage Modes |
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| GAO Huan-zhi , PENG Shi-zhang , MAO Zhi , WEI Zheng , ZHANG Zheng-liang , ZHANG Jie.N and P losses in Surface Drainage from Paddy Field under Different Irrigation and Drainage Modes[J].Water Saving Irrigation,2009(9). | |
| Authors: | GAO Huan-zhi PENG Shi-zhang MAO Zhi WEI Zheng ZHANG Zheng-liang ZHANG Jie |
| Institution: | 1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering;Nanjing 210098;China;2.College of Agriculture Engineering;Hohai University;3.Shool of Water Resource and Hydropower;Wuhan University;Wuhan 430072;China |
| Abstract: | A field experiment was performed in Gaoyou City,Jiangsu Province,to study the nitrogen and phosphorus losses under different irrigation and drainage mode and to integrate scientific irrigation and drainage technology.By setting water-controlling strobe at the ditches in the experiment plot,the drainage was regulated to different growing stages.Two years' experiment demonstrated that controlled irrigation and drainage mode attained remarkable reduction of N and P losses,with a 16.7% reduction in total irriga... |
| Keywords: | paddy field controlled irrigation controlled drainage nitrogen and phosphorus loss |
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