贵州省黔东南州重点保护、珍稀植物多样性及优先保护研究
贵州省台江县林业局, 贵州台江 556300
| 摘 要： | 目的：为全面掌握黔东南州重点保护、珍稀植物多样性现状，确定黔东南州重点保护、珍稀濒危植物优先保护名录。方法：通过采用重点线路调查和样方调查相结合的方法野外实地调查，运用濒危系数、遗传价值系数、生境型系数、保护等级系数和利用价值系数计算出物种优先保护值，确定黔东南州重点保护、珍稀植物濒危等级和优先保护等级。结果：黔东南州分布有国家重点保护植物和珍稀濒危植物共33科56属98种。其中国家保护植物共24科42属73种，贵州省重点保护树种10科14属17种，《中国植物红皮书》珍稀濒危树种1科1属1种，贵州黔东南特有植物4科4属7种。属极危（CR）的有5种，占5.10%；属濒危（EN）的有23种，占23.47%。经优先保护等级评价，按照优先保护值（V优）进行等级划分，确定为I级优先保护的有8种，占8.17%；II级优先保护的有20种，占20.41%。结论：评定为黔东南州极危、濒危共有28种，占总种数的28.57%；确定为I、II级优先保护的有28种，占28.57%，说明黔东南州珍稀濒危植物数量多，级别高，保护工作形势严峻且亟待加强。 |
| 关 键 词： | 优先保护评价; 珍稀濒危植物; 濒危等级; 生物多样性; 贵州黔东南州 |
| DOI： | 10.57237/j.jaf.2022.01.005 |
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收稿日期: 2022-12-03
接受日期: 2023-01-06
在线出版日期: 2023-01-12
Key Conservation, Rare Plant Diversity and Priority Conservation in Qiandongnan Prefecture, Guizhou Province
Taijiang Forestry Bureau, Taijiang 556300, China
| Abstract: | Objective: To determine the priority list of key protected, rare and endangered plants in Southeastern Guizhou in order to comprehensively grasp the status quo of key protected and rare plants in southeastern Guizhou. Methods: by adopting key lines and quadrat survey method of combining the field investigation, the use of endangered coefficient, coefficient of genetic value coefficient, habitat type, protection grade coefficient and value coefficient calculated species priority protection value, focus on the protection of qiandongnan prefecture, rare and endangered plant level and priority protection level. Results: There were 33 families, 56 genera and 98 species of national key protected plants and rare and endangered plants in Southeast Guizhou province. Among them, 73 species belonging to 42 genera and 24 families are under state protection, 17 species belonging to 14 genera and 10 families are under key protection in Guizhou Province, 1 species belonging to 1 family, 1 genus and 1 endangered species belong to "Chinese Plant Red Data Book", and 7 species belonging to 4 genera and 4 families are endemic to southeast Guizhou province. 5 species (5.10%) were critically endangered (CR). 23 species (23.47%) were endangered (EN). According to the evaluation of priority protection grade, 8 species were identified as grade i priority protection, accounting for 8.17%. There were 20 species of ii priority protection, accounting for 20.41%. Conclusion: A total of 28 species were critically endangered and endangered, accounting for 28.57% of the total species. There are 28 species, accounting for 28.57%, which are classified as i and ii priority conservation, indicating that there are a large number of rare and endangered plants in Qiandongnan Prefecture, and the conservation work is serious and needs to be strengthened. |
| Keywords: | Priority Conservation Assessment; Rare and Endangered Plants; Endangered Status; Biodiversity; Qiandongnan Prefecture Guizhou Province |
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