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| 华北平原不同农田类型土壤硝态氮累积及其对地下水的影响 | |
| 引用本文： | 叶灵,巨晓棠,刘楠,张丽娟,袁丽金,刘文菊,刘树庆.华北平原不同农田类型土壤硝态氮累积及其对地下水的影响[J].水土保持学报,2010,24(2). |
| 作者姓名： | 叶灵 巨晓棠 刘楠 张丽娟 袁丽金 刘文菊 刘树庆 |
| 作者单位： | 1. 河北农业大学资源与环境学院,保定,071000 2. 中国农业大学资源与环境学院,北京,100094 3. 河北农业大学资源与环境学院,保定,071000;国家山区北方农业工程技术研究中心,河北,保定,071001 |
| 基金项目： | 国家自然科学基金(编号:30940048); 科技部“863”项目(编号:2008AA06Z315); 河北省自然科学基金(编号:C2006000491) |
| 摘 要： | 针对华北平原典型农田的传统灌溉施肥带来的肥料浪费和环境污染问题,采集定州保护地蔬菜、小麦-玉米轮作农田土样及相应的地下水样品,研究了不同农田利用类型、保护地蔬菜不同种植年限和不同种植类型的土壤硝态氮的累积及对地下水污染的程度。结果表明,土壤剖面0-400cm范围保护地蔬菜的硝态氮累积量明显高于农田,0-100cm,100-200cm,200-300cm,300-400cm平均为815.0,293.6,394.9,313.4kg/hm2,分别为农田的12.3,3.8,4.6,5.1倍。保护地土壤剖面硝态氮累积量随着棚龄的增加而增加,尤其在0-60cm表现明显,0-100cm和100-200cm老龄棚(12a)土壤硝态氮累积量分别为815.0,293.6kg/hm2,高于低龄棚(8a)216.2,11.4kg/hm2。大棚黄瓜的土壤剖面硝态氮累积大于番茄,在根区外深层剖面出现多个明显的累积峰。保护地灌溉水、小麦-玉米轮作农田灌溉水及手压井饮用水NO3-N含量分别为9.6,7.4,10.5mg/L,超标率(10mg/L)分别为38%,16%,46%,该区域浅层饮用地下水已受到硝酸盐污染。 |
| 关 键 词： | 土壤硝态氮累积 农田利用类型 种植年限 种植类型 地下水污染 |
Characteristics of Nitrate Accumulation and Its Effects on Groundwater under Typical Cropping Systems in North China Plain |
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| YE Ling,JU Xiao-tang,LIU Nan,ZHANG Li-juan,YUAN Li-jin,LIU Wen-ju,LIU Shu-qing.Characteristics of Nitrate Accumulation and Its Effects on Groundwater under Typical Cropping Systems in North China Plain[J].Journal of Soil and Water Conservation,2010,24(2). | |
| Authors: | YE Ling JU Xiao-tang LIU Nan ZHANG Li-juan YUAN Li-jin LIU Wen-ju LIU Shu-qing |
| Institution: | YE Ling1,JU Xiao-tang2,LIU Nan1,ZHANG Li-juan1,3,YUAN Li-jin1,LIU Wen-ju1,LIU Shu-qing1 (1.College of Resources , Environmental Sciences,Hebei Agricultural University,Baoding 071000,2.College of Agricultural Resources , Environmental Sciences,China Agricultural University,Beijing 100094,3.Mountainous Areas Research Institute,Agriculture University of Hebei,Baoding 071001) |
| Abstract: | In order to solve the problem of nutrient waste and environmental pollution with traditional fertilization and irrigation to typical farm in north China,this article took plastic greenhouse vegetable and wheat-maize rotation soil samples and corresponding groundwater samples in Dingzhou,analyzed the NO3--N accumulation of different farm utilization,different plastic greenhouse vegetable cultivation age and different plant type and groundwater by the extent of NO3--N pollution.The results showed that,NO3--N ... |
| Keywords: | NO3--N accumulation in soil farm utilization type cultivation age plant type groundwater pollution |
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