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CO_2在雪层中扩散的模型模拟

Model Simulation of CO_2 Diffusion in Snow Layer
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摘要 利用压力脉动模型对长白山阔叶红松林冬季土壤释放的CO2在雪层中的扩散过程进行模拟,进而估算土壤呼吸。结果表明,由压力脉动引发的空气对流对雪被CO2通量的瞬间影响十分显著,但是当时间达到小时的水平时,空气对流的影响便几乎可以忽略。 The diffusion of CO2 released from soil through the snow layer in the broadleaved pine forests in Changbal Mountain was simulated with pressure-pumping models, and soil respiration was estimated. Result showed that the transient impaet of fluctuations induced by atmospherie pressure variation on CO2 fluxes is significant, but the impact can be nearly eliminated at a long-time scale (over an hour).
出处 《东北林业大学学报》 CAS CSCD 北大核心 2007年第2期42-43,69,共3页 Journal of Northeast Forestry University
基金 国家重点基金(90411020) 国家重点基础研究发展规划项目(2002CB412502) 国家自然科学基金项目(30500079)
关键词 雪层 土壤呼吸 压力脉动模型 Snow layer Soil respiration Pressure-pumping models
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参考文献9

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