[1]党丽娟,刘仁义,马耀光,等.灌溉对黄土层中全氮含量淋失的试验研究[J].水土保持研究,2010,17(01):232-234.
　DANG Li-juan,LIU Ren-yi,MA Yao-guang,et al.Experimental Study of Irrigation on Total Nitrogen Leaching in Loess Layer[J].Research of Soil and Water Conservation,2010,17(01):232-234.
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灌溉对黄土层中全氮含量淋失的试验研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年01期 页码: 232-234 栏目: 出版日期: 2010-02-20
Title:
Experimental Study of Irrigation on Total Nitrogen Leaching in Loess Layer
作者:
党丽娟1, 刘仁义2, 马耀光1, 李克青1
1. 西北农林科技大学水利与建筑工程学院, 陕西, 杨陵, 712100;
2. 内蒙古自治区第四水文地质工程地质勘察院, 内蒙古, 通辽, 028007
Author(s):
DANG Li-juan1, LIU Ren-yi2, MA Yao-guang1, LI Ke-qing1
1. College of Water Conservancy and Architectural Engineering, Northwest A & F University, Yangling, Shanxi, 712100, China;
2. The Fourth Hydrogeology Engineering Geology Exploration Institute, Inner Mongolia Autonomous Region, Tongliao, Inner Mongolia, 028007, China
关键词:
黄土层; 灌溉; 氮素; 淋失
Keywords:
loess soil; irrigation; N; leaching
分类号:
S157;S153.61
摘要:
通过室内土柱渗透试验及氮平衡分析,研究一定施氮水平、不同灌溉水平条件下黄土层中氮素的运移规律和淋失强度.试验结果表明：土壤水分是氮素淋失的运载介质和主控因素,当施氮水平为6mg/cm2时,渗透层土壤含氮量与灌水量呈负相关关系;土壤含水量及土壤层氮淋失率与灌水量呈正相关关系、与氮素浓度呈负相关关系;当灌水量大于229.3mm时,51cm深处土壤层氮淋失率将大于37.18%.因此,在黄土地区,为防止氮素流失和地下水污染,应严格控制灌水量.
Abstract:
Soil infiltration experiment and nitrogen balance analysis was carried out to study the transfer regular pattern and leaching intensity of nitrogen under the certain nitrogen level and different irrigation level in loess soil.The results indicated that soil moisture is the transfer medium and controlling factor of nitrogen leaching.When the nitrogen level is 6 mg/cm2,there is a negative correlation between soil nitrogen content and irrigation quota,and between soil water content,nitrogen leaching rate and nitrogen concentration,and a positive correlation between soil water content,nitrogen leaching rate and irrigation quota.When the irrigation quota is higher than 229.3 mm,the nitrogen leaching rate is higher than 37.18% in 51 cm soil layer.So in order to prevent nitrogen loss and groundwater pollution,the irrigation quota should be controlled strictly in loess areas.

参考文献/References:

[1] 陈晓歌,马耀光.不同灌水和施氮对黄土性土壤中NO-3-N迁移和淋失的影响[J].水土保持学报,2008,15(5):109-111.
[2] 马耀光,郭大勇,徐永功,等.黄土层中灌溉对尿素淋失特征的影响[J].水土保持学报,2003,17(4):113-116.
[3] 张国梁,章申.农田氮素淋失研究进展[J].土壤,1998(6):291-297.
[4] 张思聪,吕贤弼,黄永刚.灌溉施肥条件下氮素在土攘中迁移转化的研究[J].水利水电技术,1999,30(5):6-8.
[5] 周锦.土壤中氮含量的测定分析[J].农业科技与信息,2008(15):40-41.
[6] 中华人民共和国国家标准,GB11894-89,1989-12-25批准,1990-07-01实施.

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备注/Memo

收稿日期:2009-7-20。
基金项目:国家自然科学基金(50579066)
作者简介:党丽娟(1985- ),女,陕西平利人,硕士研究生,研究方向为环境保护.E-mail:xndlj123@163.com
通讯作者:马耀光(1957- ),男,陕西武功人,教授,硕士生导师,主要从事水资源与水环境保护方面的研究.E-mail:myg0609@yahoo.com.cn

更新日期/Last Update: 1900-01-01