The dominantgenus responsible for DNRA in Griffith soil was Bacillus sps0The amount of labile organic carbon in these two soils was examined.

• 土壤活性有机质含量与土壤管理方式有关，Griffith土实行水稻－秸秆覆盖－休闲，而扬州土实行水稻－清除秸秆－小麦－清除秸秆； 所以认为土壤管理影响土壤活性有机质含量，进而影响土壤DNRA过程。