Xeroseres旱生演替系列 (2)Establishment by weedy plants草本植物阶段 Small weedy plants and other organisms become established. -As these organisms die,additional soil is created. 1212 (2) Establishment by weedy plants 草本植物阶段 – Small weedy plants and other organisms become established. – As these organisms die, additional soil is created. Xeroseres 旱生演替系列