The soil amounts of microbial physiologicalgroup increased with vegetation restoration of degraded Karst, which indicated the soil quality has been improved gradually.
退化喀斯特植被恢复增加了土壤微生物生理类群数量，使土壤质量得以提高。
2
The typical versatility of purple non-sulfur bacteria in terms of dark metabolism (Madigan 1988, 1998) may thus favor this physiologicalgroup over purple sulfur bacteria in Lake Fryxell.