| 分蘖期稻田不同水层深度下暴雨后地表水TP的变化 |
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| 引用本文： | 黄荣,俞双恩,肖梦华,王彦彦.分蘖期稻田不同水层深度下暴雨后地表水TP的变化[J].节水灌溉,2011(11):41-43,45. |
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| 作者姓名： | 黄荣 俞双恩 肖梦华 王彦彦 |
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| 作者单位： | 南方地区高效灌排与农业水土环境教育部重点实验室,江苏南京210098／河海大学水利水电学院,江苏南京210098 |
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| 基金项目： | 国家自然基金重点项目(50839002) |
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| 摘 要： | 暴雨前在稻田内设定不同水层深度（20、40、60、80mm）,次暴雨后考察地表水TP浓度的变化。结果表明,由于雨滴击溅破坏了稻田表层土壤结构,导致地表水中悬浮物和TP浓度增加;一定深度的水层能有效减少悬浮物浓度和TP浓度,水层越深效果越明显,雨后地表水悬浮物浓度和TP的浓度从高到低顺序为20mm〉40mm〉60mm〉8...
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| 关 键 词： | 悬浮物 TP 水层 |
Study on Variation Rules of Total Phosphorous under Different Water Depth in One Rainstorm Event at Tillering Stage in Paddy Fields |
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| HUANG Rong,YU Shuang-en,XIAO Meng-hua,WANG Yan-yan.Study on Variation Rules of Total Phosphorous under Different Water Depth in One Rainstorm Event at Tillering Stage in Paddy Fields[J].Water Saving Irrigation,2011(11):41-43,45. |
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| Authors: | HUANG Rong YU Shuang-en XIAO Meng-hua WANG Yan-yan |
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| Institution: | HUANG Rong1,2,YU Shuang-en1,XIAO Meng-hua1,WANG Yan-yan1,2(1.Key Laboratory of Efficient Irrigation & Drainage and Agricultural Soil-Water Environment in Southern China,Ministry of Education,Nanjing 210098,China,2.College of Water Conservancy and Hydropower,Hohai University,China) |
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| Abstract: | The variation rule of total phosphorous of surface water in one rainstorm event in paddy field are studied according to the experimental tests for different water depth by use of evaporation-infiltration test pits.The results show that the suspended matter concentration and the amount of suspended matter increase because the soil structure has changed in the rainstorm.However,the water depth evidently reduce the amount of suspended matter.It is found that the deeper the water depth beyond 20~80 mm,the lower... |
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| Keywords: | suspended matter total phosphorous water depth |
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