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草地生态系统土壤呼吸研究进展

DOI: 10.11820/dlkxjz.2004.04.005, PP. 35-42

Keywords: 草地碳循环,根系呼吸,土壤呼吸

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Abstract:

土壤呼吸是草地生态系统碳循环过程中的关键环节,也是草地生态系统中碳素向大气输出的主要途径。土壤中碳素的释放能够显著增加大气中CO2的浓度,增强温室效应,从而对全球气候和环境变化产生重要影响。文章综合介绍了国内外有关土壤呼吸的各种测定方法,特别是分析了影响草地土壤呼吸的主要环境因素,并就草地土壤呼吸与根系呼吸的区分方法等进行了详细的讨论。

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