| 化肥氮素在水稻田中迁移与淋失的模拟研究 |
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| 引用本文： | 刘忠翰,彭江燕. 化肥氮素在水稻田中迁移与淋失的模拟研究[J]. 生态与农村环境学报, 2000, 16(2): 9-13 |
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| 作者姓名： | 刘忠翰 彭江燕 |
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| 作者单位： | 云南省环境科学研究所,昆明,650034 |
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| 基金项目： | 国家自然科学基金资助项目 !4 96610 0 5 |
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| 摘 要： | 为了研究氮化肥施入农田对地表水和地下水的影响 ,在一种特殊的大型人工模拟土层和地下水装置中进行试验。研究结果表明 :即使尿素和生物矿质复混肥以中、低施肥量施入水田 ,也会造成地表淹水、耕层土壤和不同深度土层溶液有较高含量的有机 N和 N H3- N,并对地下水补给状况极差的地下水有明显的污染 ;水田中 N O- 3 - N很难长期存在 ,其污染程度可忽略不计
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| 关 键 词： | 化肥 水稻田 氮污染 氮迁移 |
Simulation of Transfer and Leaching of Fertilizer Nitrogen in Paddy Field |
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| Liu Zhonghan et al. Simulation of Transfer and Leaching of Fertilizer Nitrogen in Paddy Field[J]. Journal of Ecology and Rural Environment, 2000, 16(2): 9-13 |
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| Authors: | Liu Zhonghan et al |
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| Abstract: | In order to study the effects of nitrogenous chemical fertilizer applied into paddy field on surface and ground water, a large scaled apparatus with simulated soil layers and ground water was erected for the experiment. Results show that even if urea was blended with bio mineral complex fertilizers and applied at a moderate or low rate, pretty high contents of organic nitrogen and NH-3-N were detected in the surface water and solutions of the plow layer and the other layers at different depth, considerably polluting the groundwater, which lacks adequate replenishment. Since NO - 3-N will not last long in paddy field, its pollution may be neglected. |
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| Keywords: | chemical fertilizer nitrogen pollution transfer paddy field |
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