摘要
通过实地调查、结合文献与标本记录,归纳和分析了云南梧桐的地理分布、群落的种类组成、区系成分和种群现状、濒危原因。结果表明:云南梧桐间断分布于金沙江上游至中游生境较湿润的沟箐或阴坡区域,记录到17个分布点;香格里拉尼汝河谷分布点为滇川交界的藏区,人烟稀少,生境陡峭湿润,是目前云南梧桐种群面积最大(0.7 km^(2))、数量最多(10000余株),保存最自然和完好的类型;云南梧桐为古地中海退却后的残遗种,野生种群开花结实量少,种子被动物取食、生境制约、人为影响等多重因素造成其分布点少、自然更新率极低,个体少、处于濒危状态。
The geographical distribution,species composition,floristic composition,population status and endangered causes of Firmiana major were summarized and analyzed by field survey,consulting literature and specimens.The results showed that F.major was distributed intermittently in the humid gully or shady slopes of the upper reaches of Jinsha River,and there are a counter of 17 distribution points.The distribution of Niru Valley in Shangri-La is located in the Tibetan area of Yunnan and Sichuan border.The area is sparsely populated and the environment is steep and humid.It is the most natural and intact type of F.major population with the largest population(0.7 km^(2))and the largest number(more than 10000 strains).F.major is a relic species that has been retreated after the ancient Mediterranean.The wild population natural regeneration rate is very low,with few distribution points,the natural regeneration rate is very low and endangered species,due to multiple factors such as the flowering and fruiting of wild populations,the animal to eating seed,living environment,and human factor.
作者
茶武婧
石明
杜凡
王粤
戴蓉
Cha Wujing;Shi Ming;Du Fan;Wang Yue;Dai Rong(College of Forestry,Southwest Forestry University,Kunming Yunnan 650233,China;Nanjing Institute of Environmental Sciences,Ministry of Ecology and Environment,Nanjing Jiangsu 210042,China)
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2023年第3期71-78,共8页
Journal of Southwest Forestry University：Natural Sciences
基金
生态环境部生物多样性调查、观测和评估项目(2019—2023年)资助。
关键词
云南梧桐
分布
群落
极小种群
Firmiana major
distribution
community
tiny population
作者简介
第一作者:茶武婧(1995-),女,硕士研究生。研究方向:生物多样性保护与利用。Email:354951656@qq.com;通讯作者:戴蓉(1981-),女,高级工程师。研究方向:生物多样性与保护区管理。Email:dairong@nies.org。
