排灌机械工程学报
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排灌机械工程学报  2014, Vol. 32 Issue (6): 541-546    DOI: 10.3969/j.issn.1674-8530.13.0061
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肥液浓度对膜孔交汇入渗水氮运移转化影响
脱云飞1, 王克勤1, 张丽娟1, 费良军2
1.西南林业大学环境科学与工程学院, 云南 昆明 650224; 2.西安理工大学西北水资源与环境生态教育部重点实验室, 陕西 西安 710048
Influence of fertilizer solution concentration on transfer and transform of soil moisture and nitrogen under intersection film hole irrigation
Tuo Yunfei1, Wang Keqin1, Zhang Lijuan1, Fei Liangjun2
1.Environmental Science and Engineering Department in Southwest Forestry University, Kunming, Yunnan 650224, China; 2.Key Lab of Northwest Water Resources and Environment Ecology of MOE at Xi′an University of Technology, Xi′an, Shaanxi 710048, China
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摘要 通过分析膜孔多向交汇入渗条件下肥液质量浓度对土壤水分分布特征和氮素运移转化影响的室内试验资料,研究提出了土壤湿润体的含水率及其硝态氮和铵态氮与不同肥液质量浓度和灌水入渗时间关系的经验公式,提出了湿润体内土壤含水率及其减小量和减小率、土壤硝态氮及其转化量和转化率、土壤铵态氮及其转化量和转化率与肥液质量浓度和运移转化时间关系的经验公式.结果表明:该经验公式的相关系数均大于0.900 0,标准误差很小,且通过0.05的显著性检验,可见该经验公式能反映膜孔多向交汇入渗不同肥液质量浓度的土壤水分分布和氮素运移转化规律.
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脱云飞
王克勤
张丽娟
费良军
关键词膜孔灌   肥液质量浓度   水分分布   氮素运移转化     
Abstract: The formulas were obtained by analyzing the indoor experimental data of the distributing character of soil moisture and the transfer and transform of nitrogen under the condition of multidirection intersection film hole irrigation. The empirical formulas were put forward to indicate the relationship in wetting body among the soil moisture with the decreased quantity and rate, the soil ammonium nitrogen with the transformed quantity and rate, nitrate nitrogen with the transformed quantity and rate, fertilizer solution concentration and the infiltration time. The results show that the correlation coefficients of empirical formulas are all bigger than 0.900 0, while the standard errors are very small. Therefore, by the significance test of 0.05, it can be concluded that the formulas can reflect the law for the distributing character of soil moisture and the transfer and transform of nitrogen under the condition of multidirection intersection film hole irrigation with different fertilizer solution concentrations. It provides the scientific foundation for improving the utilization efficiency of soil moisture and nitrogen under the condition of film hole irrigation.
Key wordsfilm hole irrigation   fertilizer solution concentration   distributing of soil moisture   transfer and transform of nitrogen   
收稿日期: 2013-01-28;
基金资助:

国家自然科学基金资助项目(51279157);云南省教育厅科学研究基金资助项目(2011C134);西南林业大学水土保持与荒漠化重点学科建设项目

通讯作者: 脱云飞(1976—),男,甘肃泾川人,副教授,博士(tyunfei@163.com),主要从事水文水资源规划和利用研究.   
作者简介: 王克勤(1964—),男,甘肃庄浪人,教授,博士后(通信作者,wangkeqin7389@foxmail.com),主要从事农田面源污染方面的研究.
引用本文:   
脱云飞,王克勤,张丽娟等. 肥液浓度对膜孔交汇入渗水氮运移转化影响[J]. 排灌机械工程学报, 2014, 32(6): 541-546.
TUO Yun-Fei-,WANG Ke-Qin-,ZHANG Li-Juan- et al. Influence of fertilizer solution concentration on transfer and transform of soil moisture and nitrogen under intersection film hole irrigation[J]. Journal of Drainage and Irrigation Machinery Engin, 2014, 32(6): 541-546.
 
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