| 内蒙古典型草原土壤无机氮含量对交替利用方式的响应 |
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| 引用本文： | 单玉梅,陈海军,白永飞,杨勇,王明玖.内蒙古典型草原土壤无机氮含量对交替利用方式的响应[J].中国草地学报,2011,33(4):24-30. |
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| 作者姓名： | 单玉梅 陈海军 白永飞 杨勇 王明玖 |
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| 作者单位： | 1. 内蒙古农业大学生态环境学院,内蒙古呼和浩特,010019
2. 中国科学院植物研究所植被与环境变化国家重点实验室,北京,100093 |
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| 基金项目： | 中国科学院绿色农业技术集成与发展中心创新方向项目“内蒙古典型草原不同载畜率氮素储量动态的研究”(KSCX2-YW-N-90) |
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| 摘 要： | 2009年6～9月初,在内蒙古典型草原上研究了4个不同放牧强度(对照无牧、轻度放牧、中度放牧和重度放牧)与打草交替利用方式下土壤温度、含水量、无机N(铵态氮和硝态氮)含量的变化及其相关性.结果表明,土壤温度整体呈先增加后降低的趋势,土壤含水量与之相反；6月,NH4+ -N、NO3- -N和无机N含量均高于7月；7～9月...
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| 关 键 词： | 典型草原 放牧与打草 交替利用 放牧强度 无机N |
Response of Soil Inorganic N Content to Alternate Using Pattern in the Typical Steppe,Inner Mongolia |
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| SHAN Yu-mei,CHEN Hai-jun,BAI Yong-fei,YANG Yong,WANG Ming-jiu.Response of Soil Inorganic N Content to Alternate Using Pattern in the Typical Steppe,Inner Mongolia[J].Chinese Journal of Grassland,2011,33(4):24-30. |
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| Authors: | SHAN Yu-mei CHEN Hai-jun BAI Yong-fei YANG Yong WANG Ming-jiu |
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| Institution: | SHAN Yu-mei1,CHEN Hai-jun1,BAI Yong-fei2,YANG Yong1,WANG Ming-jiu1(1.College of Ecology and Environmental Science,Inner Mongolia Agricultural University,Hohhot 010019,China,2.State Key Laboratory of Vegetation and Environmental Change,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China) |
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| Abstract: | The seasonal dynamics and correlations of soil temperature,soil moisture content,soil NH+4-N,NO-3-N & inorganic N content under the four different grazing intensities including no-grazing,light grazing,moderate grazing & heavy grazing from June to September 2009 were measured and analyzed.The results showed that the soil temperature first increased and then decreased,but soil moisture content changed oppositely.In June,soil NH+4-N,NO-3-N and inorganic N content were higher than in July.From July to Septembe... |
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| Keywords: | Inner Mongolia typical steppe Grazing and haymaking Alternant using pattern Grazing intensities Soil inorganic N |
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