野火在华北二叠纪植物群演化中的作用和植物的生存对策

The project works on abundant charcoal materials and various mega- and microscopic fossils from 13 continuous plant-bearing beds of the Upper Permian sections in northern Shanxi and in relation to the terminal Permian biotic extinction,three main wildfire activities have been recognized to cause rapid decline and sudden dieback of wood forest vegetation, which had persisted within a relict refugium of arborescent lycopsids in North China, on the eve of the event, accompanying with activities of other natural crises such as strong wind, severe desiccation and fungal proliferation.Preliminary assessment of the survival possibilities of various plants to persist against the mass extinction has also been analysed.In plant systematics, a new Permian gymnosperm Palaeognetaleana has been significantly discovered and the affinity of the Permian Nystroemia as an enigmatic seed plant has been assigned to a relict of the early Carboniferous seed fern

通过对华北晚二叠世红层中丰富的化石木炭材料研究，了解野火作为破坏陆地生态系统的自然灾害因素，在华北二叠纪末集群绝灭事件发生前树形石松植物群消亡过程中的作用；并通过生殖生态学途径研究那些新兴的、显示东方特色的裸子植物在生殖结构方面的变异，探索这些植物的生存对策。