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浙江大学学报（农业与生命科学版）
浙江大学学报(农业与生命科学版)  2010, Vol. 36 Issue (6): 650-656    DOI: 10.3785/j.issn.1008-9209.2010.06.009
农业科学     
膜孔肥液自由入渗中土壤容重对水氮分布和均匀性的影响
脱云飞,王克勤,张振伟,费良军,胡兵辉
脱云飞,西南林业大学环境科学与工程系,云南昆明650224;王克勤,西南林业大学环境科学与工程系,云南昆明650224; 张振伟,云南大唐国际电力公司,云南昆明650011; 费良军,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 胡兵辉,西南林业大学环境科学与工程系,云南昆明650224;
Influence of soil bulk density on distribution and uniformity of water and nitrogen under film hole irrigation with fertilizer liquid free infiltration
TUO Yun-fei,WANG Ke-qin,ZHANG Zhen-wei,FEI Liang-jun,HU Bing-hui
TUO Yun-fei,Environmental Science and Engineering Department,Southwest Forestry University,Kunming 650224,China; WANG Ke-qin,Environmental Science and Engineering Department,Southwest Forestry University,Kunming 650224,China; ZHANG Zhen-wei,Yunnan Datang International Electric Power CO .LTD .,Kunming650011,China; FEI Liang-jun,Key Laboratory of Northwest Water Resources and Environment Ecology of Ministry of Education,Xi′an University of Technology,Xi′an710048,China HU Bing-hui,Environmental Science and Engineering Department,Southwest Forestry University,Kunming 650224,China;
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摘要： 通过室内试验,研究膜孔肥液自由入渗中土壤容重对土壤含水率、土壤硝态氮和铵态氮的分布 以及均匀性的影响 。结果表明 :土壤含水率和土壤铵态氮以膜孔为中心逐渐减小,而土壤硝态氮以膜孔为中心先增大后减小;土壤容重越大,土壤含水率、土壤硝态氮和铵态氮在水平方向和垂直方向分布的 距离越小,肥液的累积入渗量越小 ;土壤容重越大,土壤含水率和土壤硝态氮分布的均匀性系数越小,而土壤铵态氮分布的均匀性系数越大。这为研究膜孔肥液灌溉技术奠定了基础 。
Abstract: Based on the indoor experiments,the influences of soil bulk density on distribution and uniformity of soil moisture,NO3--N and NH4 +-N under film hole irrigation with fertilizer liquid free infiltration were studied . The results showed that soil moisture and NH4 +-N decreased around the film hole;NO3--N first increased and then decreased around the film hole;the lager the soil bulk density was,the smaller the distribution distance of soil moisture,NO3--N and NH4 +-N in horizontal and vertical direction were,and the smaller the accumulative infiltration quantity of fertilizer liquid was . The lager the soil bulk density was,the smaller the uniformity coefficient of soil moisture and NO3--N were,but the lager the uniformity coefficient of NH4 +-N was .The results lay a foundation for further research of film hole fertilizer liquid irrigation technology .
出版日期: 2010-11-09
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脱云飞
王克勤
费良军
胡兵辉
张振伟

引用本文:

脱云飞,王克勤,张振伟,费良军,胡兵辉. 膜孔肥液自由入渗中土壤容重对水氮分布和均匀性的影响[J]. 浙江大学学报(农业与生命科学版), 2010, 36(6): 650-656.

TUO Yun-fei,WANG Ke-qin,ZHANG Zhen-wei,FEI Liang-jun,HU Bing-hui. Influence of soil bulk density on distribution and uniformity of water and nitrogen under film hole irrigation with fertilizer liquid free infiltration. Journal of Zhejiang University: Agric. & Life Sci., 2010, 36(6): 650-656.

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http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2010.06.009    或    http://www.zjujournals.com/agr/CN/Y2010/V36/I6/650

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