广西天峨红水河龙滩库区植物生物多样性

在对广西天峨红水河龙滩库区植被调查研究的基础上,论述了该地区植物多样性.结果表明:该地区计有土著维管束植物182科、665属、1 230种,其中裸子植物4科、5属、9种,被子植物155科、603属、1 145种;地带性植被为含季雨林成分的季风常绿阔叶林;库区植物区系具有丰富性、古老性、复杂性和过渡性等特点,且有相当多的中国特有分布的类群,其中有20个特有属、693个特有种(占该区种子植物总数的60.02%),珍稀保护植物13种集中于此,是中国植物生物多样性最关键的地区之一.

Plant Biodiversity and Its Characteristics of Longtan Reservoir Area of Hongshuihe River

The vegetation and plant biodiversity of Longtan Reservoir Area(Guangxi Tian-e) were surveyed.Based on the statistics from the lists of indigenousvascular plants,there are 1230 species,belonging to 182 families and 655 genera,among which are gymnosperm: 9 species,5 genera and 4 families,and angiosperm: 1145 species,603 genera and 155 families.The vegetation in this area is zonal,belonging to the monsoon evergreen broad-leaved forest with elements of seasonal rain forest.A statistical analysis indicates that the flora of Longtan Reservoir Area has characteristics of richness,ancientness,complicatedness and transition.This area possesses a considerable amount of endemic elements,among which there are 20 genera,693(60.02%) species and 13 species of rare protected plants.The area is one of the key regions to prove China's plant biodiversity.