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The study on Diurnal Variation in Greenhouse Gas Revenue and Expenditure Fluxes of Leymus chinensis Grassland of Inner Mngolia

Du Ruil; Wang Gengchen; Liu Guangren;Wang yuesi; Lu Daren; ( Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029)Wang Yanfen; Chen Zuzhong ( Institute of Botany, Chinese Academy of Sciences, Beijing 100093)  
The F1uxes 0f three important greenhouse gases(N,O,CH4 and CO2)were measured in sitevia closed chamber technique on July 8, l998- The characteristic of diurnal variation in those greenhousegases fluxes were analyzed and discussed. The results sh0w that there was trade-off between N2O emis-sion and CH' consumpti0n by the steppe soil-
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