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dc.contributor.author郑海雷zh_CN
dc.contributor.author王介民(中国科学院兰州高原大气物理研究所)zh_CN
dc.contributor.author米谷俊颜(日本冈山大学资源生物科学研究所)zh_CN
dc.contributor.author大龙英治(日本冈山大学文理学院)zh_CN
dc.contributor.author黄子琛(中国科学院兰州沙漠研究所)zh_CN
dc.contributor.author赵松岭(兰州大学干旱农业生态国家重点实验室)zh_CN
dc.date.accessioned2011-04-26T08:16:34Z
dc.date.available2011-04-26T08:16:34Z
dc.date.issued2001-01zh_CN
dc.identifier.citation生态学报, Acta Ecologica Sinica,2001 20(1):88-92zh_CN
dc.identifier.issn1000-0933zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/6054
dc.description.abstract在河西走廊黑河地区沙漠和绿洲下垫面生态条件下,用涡旋相关法研究了能量输送的不同模式和日变化进程;以及两种生态条件下能量输送间可能存在的相互关系。在沙漠生态条件下,大部分净辐射用于显热散失,另一部分用于向地下传输,较少部分则用于潜热输送,其方向在白天向下,在夜间向上;其Bowen比为13.16。在绿洲的麦田生态条件下,能量输送的基本模式为:大部分净辐射用于潜热散失,其输送方向与沙漠相反,另一部分用于显热散失,其输送方向一般在午后约3h即由上传转为下传。土壤热通量在最大时一般不超过40W/m2。冠层光合作用固定的能量则更小,其数量级维持在10W/m2以下,小麦不同生长阶段各能量分量占净辐射的比例有所变化。麦田的Bowen比从分蘖期的0.33降到拔节期末的0.095。当有干热大风自沙漠吹向绿洲时观测了典型的绿洲效应,其能量输送模式发生很大变化,显热显著下传,地热流量减弱,潜热散失强烈,起风后约2h潜热甚至高于净辐射。表明沙漠的能量组分参与了麦田的能量平衡过程。 【英文摘要】 With eddy correlation,we studied the pattern and dinurnal variation course of energy transfer for the underlying surface of desert and wheat field in oasis and their possible relationship between two ecological conditions at Heihe River region in Hexi Corridor during the HEIFE project.In the desert,the most net radiation( Rn )was consumed by sensible heat( H )transfer,another part of Rn conducted into desert surface,and a small part of Rn was dissipated by latent heat( LE ) transfer on a fine ...zh_CN
dc.description.sponsorship中国科学院资助项目;;国家自然科学基金;;日本文部省资助项目zh_CN
dc.language.isozhzh_CN
dc.publisher中国生态学学会zh_CN
dc.subject沙漠zh_CN
dc.subject绿洲生态系统zh_CN
dc.subject能量通量zh_CN
dc.subject湍流交换zh_CN
dc.subject绿洲效应zh_CN
dc.subject鲍恩比zh_CN
dc.subjectdesertzh_CN
dc.subjectoasis ecosystemzh_CN
dc.subjectenergy fluxzh_CN
dc.subjectturbulence exchangezh_CN
dc.subjectoasis effectzh_CN
dc.subjectBowen′s ratio;zh_CN
dc.title河西走廊沙漠和绿洲下垫面生态条件下能量交换若干特征zh_CN
dc.title.alternativeSome characteristics of energy exchange at the underlying surface of desert and oasis in Hexi Corridorzh_CN
dc.typeArticlezh_CN


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