广西木论国家级自然保护区植物物种多样性初步研究

Guangxi Mulun National Nature Reserve is located in the crisscross zone of Dian-Qian-Gui flora and south China flora, also is the heartland of the transition zone about Palaeoarctic flora and Palaeotropical flora. It plays an irreplaceable role in biodiversity conservation areas of China. In order to understand the plant species diversity in Guangxi MulunNational Nature Reserve, the composition and characteristics of vascular plant diversity wasstudied based on historical literatures, field investigations, specimens collection and identification,and data statistical analysis. The results were as follows: (1) this Reserve had 1 735 species ofvascular plants, including 218 species of Lycophytes and Ferns, 1 517 species of seed plants, withabundant vascular plant diversity and complex floristic composition. (2) this Reserve had 486species endemic to China, 56 species endemic to Guangxi, and 262 species endemic to karst areas,with significant plant endemism. (3) this Reserve had 68 species of national key protected wildplants, 153 species of Guangxi key protected wild plants, 4 species of extremely small populationwild plants in China, 108 threatened plants, and 144 plants listed in the appendix of theConvention on International Trade in Endangered Species of wild Fauna and Flora (CITES), withrelative high degree of rare and endangered plants. Based on the results, Guangxi Mulun NationalNature Reserve is an important gene bank of karst plants. It has extremely important conservationvalue. This study also provides important basic data for construction and management of thisReserve, protection and sustainable utilization of plants, and other scientific research works.