论文部分内容阅读
气候变化是当下的热门话题,碳的源汇问题也倍受关注。土壤碳库是陆地最大的碳库,土壤有机碳又是土壤极为重要的组成部分,而土壤有机碳的不同组分具有不同的周转方式及其环境意义。本文阐述了几种主要土壤有机碳组分(水溶性有机碳、微生物量碳、颗粒有机碳、轻组和重组有机碳、土壤黑碳)的环境意义、周转方式及其研究进展,认为对土壤有机碳组分进行耦合研究具有理论和实践意义。
Climate change is a hot topic at present, and the problem of source and sink of carbon also attracts much attention. Soil carbon pool is the largest land-based carbon pool, and soil organic carbon is an extremely important component of soil. However, different components of soil organic carbon have different ways of turnover and their environmental significance. This paper describes the environmental significance, turnover methods and research progress of several major soil organic carbon components (water-soluble organic carbon, microbial biomass carbon, particulate organic carbon, light and recombinant organic carbon, soil black carbon) It is of theoretical and practical significance to study the coupling of organic carbon components.