根际沉积碳研究进展

Research Advance of Rhizosphere Deposited Carbon

根际碳沉积在农田碳循环中起重要作用,不仅是维持根系呼吸消耗的重要组成成分,同时在植物根际碳消耗中占有相当大的比重。植物根际碳的沉积来源于植物残体的分解以及植物生育期内根际碳的释放,根际碳的沉积是土壤有机质的主要来源,根际碳沉积测定方法主要是同位素示踪技术。

The rhizosphere deposited carbon plays a significant role in carbon cycle of field land. It is not only the important compositions to maintain consume of root respiration, but also accounts for sizable proportion in plant rhizosphere carbon consume. The rhizosphere deposited carbon come from decompositon of plant residue and release of rhizophere carbon during plant grow period. The rhizosphere deposited carbon is primary source of soil organic matter. The determine method of rhizosphere deposited carbon is mainly isotope tracer technique.