土壤呼吸及其三个生物学过程研究

Soil Respiration and its Three Biological Processes

土壤呼吸包括3个生物学过程:植物根系呼吸,土壤微生物呼吸,土壤动物呼吸,3个过程呼吸所利用的C源不同,对土壤呼吸的贡献也有差异,精确分离并量化土壤呼吸3个生物学过程是土壤呼吸研究的一个重点和难点,只有了解各组分呼吸的机理及其在土壤总呼吸中的比例,才能掌握土壤呼吸的实质,从而了解陆地生态系统地下C通量和C分配格局。笔者在综合分析国内外相关研究的基础上,对土壤呼吸的3个生物学过程呼吸原理,影响机制,研究现状及进展等进行了比较和评述,重点提出分离量化3个生物学过程呼吸的方法及原理,尤其针对野外原位测定土壤动物呼吸,首次给予重点分析并探讨相关研究方法。

Soil respiration includes three biological processes： soil microbes respiration,roots respiration and soil fauna respiration.Different process have different C source,thus the three biological processes have different contribution to the total soil respiration.Separating these three biological processes is difficult and important for soil research,only understanding the proportion of every process in total soil respiration,can master the essence of soil respiration,the distribution and the efflux of C.Through the survey of the publications over the worlds,the theory,the effect mechanism and the advances of three biological processes of soil respiration were compared and reviewed,then bring forward the approaches that separate the three biological processes.For the measurement of soil fauna respiration,this paper lists the relevant research specially.