| 不同潜水埋深污水灌溉硝态氮运移试验研究 |
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| 作者姓名： | 齐学斌 亢连强 李平 樊向阳 黄仲冬 乔冬梅 |
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| 作者单位： | 中国农业科学院农田灌溉研究所 河南新乡453003西北农林科技大学陕西杨凌712100(齐学斌)，中国农业科学院农田灌溉研究所 河南新乡453003(亢连强，李平，樊向阳，黄仲冬，乔冬梅) |
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| 基金项目： | 国家高技术研究发展计划(863计划);国际科技合作项目;国家科技支撑计划 |
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| 摘 要： | 随着污水灌溉的迅速发展,污水灌溉对土壤环境及地下水的影响日益受到人们的关注。通过污水灌溉田间试验,探讨了不同潜水埋深条件下,污水灌溉对土壤及地下水中硝态氮的影响。结果表明:与灌水前相比,灌水后土壤硝态氮含量的峰值都出现下移现象,灌水对土壤中的硝态氮有强烈的淋洗作用;地下水埋深相同时,高灌水量处理土壤增加的硝态氮含量比低灌水量处理的大;灌水量相同时,土壤硝态氮增加量随着地下水埋深增加而增大。
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| 关 键 词： | 污水灌溉 地下水埋深 硝态氮 运移 |
Research on NO3--N Transport at Different Ground Water Depth with Sewage Irrigation |
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| Authors: | Qi Xuebin Kang lianqiang Li Ping Fan Xiangyang Huang Zhongdong Qiao Dongmei |
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| Institution: | 1Farmland Irrigation Research Institute;Chinese Academy of Agricultural Sciences;Henan;Xinxiang 453003;2Northwest Agriculture and Forestry University;shaanxi;Yangling 712100 |
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| Abstract: | People pay more attention to the soil and ground water environment influenced by rapid development of sewage irrigation.This paper analyzed the nitrate transport in different ground water depth under field experiment with sewage irrigation.The results indicated that sewage irrigation increased soil nitrate leaching,peak value of nitrate moved down to lower soil zone after sewage irrigation.Nitrate''s accrual of larger irrigation amount was greater than that of lower irrigation amount,in the same ground water depth.And Nitrate''s accrual increased as ground water depth,under the same irrigation amount conditions. |
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| Keywords: | Sewage irrigation Ground water depth Nitrate Transport |
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