Ancient Ecological Disaster Site Is Now a Refuge: Bryophyte Diversity in Volcanic Lava Caves of Jingpo Lake World Geopark

Volcanic lava cave habitats are extreme environments. We carried out field investigations for five years and reported the results of bryophyte diversity in eight volcanic caves Jingpo Lake World Geopark, where largest underground China preserved. The as follows: (1) A total 230 quadrats were set up, 2041 specimens collected. belong to 272 species 107 genera 47 families, including 26 liverworts (13 genera, 11 families) 246 mosses (94 36 families). (2) α bryophytes Underground Lava Fall Cave was highest, while that Foggy lowest. (3) dominant families included Mniaceae, etc, accounting 55.9% species. Plagiomnium, 24.3% Sanionia uncinata (Hedw.) Loeske etc. (4) There no shared among all caves, each has a unique composition. (5) Compared with other our previous studies, similarity between forests craters high (113 species, 40.07%), it low platforms (9 4.65%). Our study revealed have potential diversity, such ancient ecological disaster sites now rare refuges bryophytes. Mosses more adapted than liverworts. Bryophytes this special eco-environment need be considered protected order preserve high-quality gene resources humans, which is great significance maintenance development biodiversity.