设为首页  |   加入收藏
武 岩,红 梅,林立龙,美 丽,张建强.不同施肥措施对河套灌区盐化潮土氨挥发及氧化亚氮排放的影响[J].土壤,2017,49(4):745-752. WU Yan,HONG Mei,LIN Lilong,MEI Li,ZHANG Jianqiang.Influence of Different Fertilization Measures on NH3 Volatilization and N2O Emission in Salined Flavo-aquic Soil of Hetao Irrigation Area[J].Soils,2017,49(4):745-752 本文二维码信息
二维码(扫一下试试看!)
不同施肥措施对河套灌区盐化潮土氨挥发及氧化亚氮排放的影响
Influence of Different Fertilization Measures on NH3 Volatilization and N2O Emission in Salined Flavo-aquic Soil of Hetao Irrigation Area
投稿时间:2016-08-18  修订日期:2017-01-07
DOI:10.13758/j.cnki.tr.2017.04.016
中文关键词:  施肥措施  NH3  N2O  河套灌区
Key Words:Fertilization measures  NH3  N2O  Hetao Irrigation Area
基金项目:内蒙古“青年科技英才支持计划”项目(NJYT-15-A11)和乌梁素海生态过渡带面源污染控制示范推广项目资助。
作者单位E-mail
武 岩 内蒙古农业大学/内蒙古自治区土壤质量与养分资源重点实验室 wuyan19911120@vip.qq.com 
红 梅 内蒙古农业大学/内蒙古自治区土壤质量与养分资源重点实验室 nmhm1970@sina.com 
林立龙 内蒙古土壤肥料工作站  
美 丽 内蒙古农业大学/内蒙古自治区土壤质量与养分资源重点实验室  
张建强 杭锦后旗农业推广中心  
摘要点击次数: 147
全文下载次数: 87
中文摘要:
      本研究以河套灌区农田盐化潮土为研究对象,通过静态暗箱-气相色谱法和田间土壤氨挥发原位测定法(通气法),研究了4种不同施肥措施(农民习惯施肥、膨润土+农民习惯施肥、生物炭+农民习惯施肥、腐殖酸+农民习惯施肥,分别标记为CK、B、C、HA)对土壤氨(NH3)挥发及氧化亚氮(N2O)排放的影响。结果表明: B处理可以显著降低土壤N2O的排放,其N2O累计排放量较CK降低30.9%,氮肥损失率较CK降低31.5%;其他处理N2O累计排放量与CK无显著差异。各处理NH3挥发速率于施肥灌水后3 ~ 5 d达到峰值,之后逐渐降低趋于平稳。B、C、HA处理可以显著降低土壤NH3挥发,NH3累计挥发量较CK降低56.0%、41.2%、49.0%,氮肥损失率较CK降低56.0%、41.2%、52.1%。相关性分析表明,土壤温度和空气温度与土壤N2O的排放呈显著正相关;生育期土壤含水量处于151.2 ~ 203.3 g/kg,在这一范围内,土壤含水量与土壤N2O的排放呈正相关关系。B处理可显著降低土壤NH3挥发及N2O排放,且比CK增产11.1%,是较为合理的施肥措施。
Abstract:
      NH3 volatilization and N2O emission under different fertilization of a salined flavo-aquic soil in Hetao Irrigation Area studied through the static chamber gas chromatography and in situ field determination, the different fertilization included 1) CK, farmer conventional fertilization, 2) B, bentonite + CK, 3) C, biochar + CK, and 4) HA, humic acid + CK. The results showed that: compared with CK, B fertilization significantly reduced the cumulative emission of soil N2O by 30.9% and decreased nitrogen loss by 31.5%, but there were no significant difference between the other fertilization and CK in N2O cumulative emission. The NH3 volatilization rate of each treatment reached the peak value in 3—5 days after fertilization, and then gradually tended to be stable. Compared with CK, B, C, and HA treatments significantly reduced total amount of soil NH3 volatilization by 56.0%, 41.2% and 49.0%, and decreased nitrogen loss rate by 56.0%, 41.2% and 52.1%, respectively. Soil temperature and air temperature were significantly positively correlated with soil N2O emission; Soil water content ranged from 151.2 g/kg to 203.3 g/kg in maize growth period in which soil moisture content and soil N2O emission were positively correlated. B fertilization significantly reduced soil NH3 volatilization and N2O emission, and increased crop yield by 11.1% compared to CK, which indicate it is the more reasonable fertilization.
查看全文  查看/发表评论  下载PDF阅读器

您是第863792位访问者
版权所有 © 《土壤》编辑部
本系统由北京勤云科技发展有限公司设计   京ICP备09084417号
手机扫一扫看