| 科尔沁沙地不同植物群落土壤呼吸及环境因素分析 |
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| 引用本文： | 陈银萍,李玉强.科尔沁沙地不同植物群落土壤呼吸及环境因素分析[J].干旱区资源与环境,2011(3):122-126. |
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| 作者姓名： | 陈银萍 李玉强 |
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| 作者单位： | 兰州交通大学环境与市政工程学院;中国科学院寒区旱区环境与工程研究所; |
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| 基金项目： | 兰州交通大学青蓝人才工程基金; 国家自然科学基金项目(40901049)资助 |
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| 摘 要： | 对科尔沁沙地固定、半固定和流动沙丘土壤呼吸的日进程、季节变化及其环境因素进行了测定分析.结果表明:1)土壤呼吸速率与植物群落生物量、土壤有机碳、全氮及粘粉粒含量之间存在显著的正相关关系;固定沙丘日平均土壤呼吸速率分别是半固定和流动沙丘的1.18和2.02倍.2)从固定、半固定到流动沙丘,土壤温度及近地表空气温度呈现增加...
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| 关 键 词： | 沙地 土壤呼吸 环境因素 |
Soil respiration and its environmental factors in different habitats,Horqin Sandy Land |
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| CHEN Yinping,LI Yuqiang.Soil respiration and its environmental factors in different habitats,Horqin Sandy Land[J].Journal of Arid Land Resources and Environment,2011(3):122-126. |
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| Authors: | CHEN Yinping LI Yuqiang |
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| Institution: | CHEN Yinping1,LI Yuqiang2(1.School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,P.R.China,2.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,P.R.China) |
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| Abstract: | The daily and seasonal variations of soil respiration and its environmental factors were measured in different habitats(fixed,semi-fixed and moving sand dune) in Horqin sandy land.Results showed that:(1) Soil respiration rate has a significantly positive relationship with plant biomass,soil organic carbon,total nitrogen and silt+clay content.The mean soil respiration rate in fixed sand dune during the study period is 1.18 and 2.02 times of that in semi-fixed and moving sand dune,respectively.(2) Soil temper... |
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| Keywords: | soil respiration environmental factors Horgin Sandy Land |
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