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作 者:孙凡[1] 杜洋文[2] 李霞[2] 刘伯云[2] 杨松[2]
机构地区:[1]西南大学三峡库区生态环境教育部重点实验室,重庆400715 [2]西南大学资源环境学院,重庆400715
出 处:《西南大学学报(自然科学版)》2007年第9期101-107,共7页Journal of Southwest University(Natural Science Edition)
基 金:国家"863"计划课题资助项目(20060110Z4047)
摘 要:在野外调查的基础上,运用濒危系数、遗传价值系数和物种价值系数对重庆雪宝山自然保护区33种野生国家保护植物的优先保护顺序进行定量分析.结果表明除崖柏外,属一级保护的有银杏、珙桐和光叶珙桐共3种,占研究物种总数的9.09%;属二级保护的有红豆杉、南方红豆杉、秦岭冷杉、大果青杄、黄杉、蓖子三尖杉、巴山榧树、连香树、鹅掌楸、峨眉含笑、润楠、楠木、花榈木、川黄檗、红椿和毛红椿共l6种,占48.48%;属三级保护的有榉树、金荞麦、厚朴、凹叶厚朴、山豆根、红豆树、喜树和拟高粱共9种,占27.27%;属四级保护的有香樟、油樟和野大豆共3种,占9.09%.并提出了加强重点保护野生植物的保护措施.Based on a field investigation, endangered coefficient, genetic coefficient and species value coefficient were used for quantitative analyses to determine the priority of conservation of the national protected plants distributed in Xuebaoshan Nature Reserve. The results showed that of the 33 species of the national protected plants investigated, except Thujo sutchuenensis, 3 species (Ginkgo biloba Linn. Davidia involucrata Baill and D. involucrata vat. vilmoriniana (Dode) Wanger) belong to the first class protection, accounting for 21% of the total; 16 species (Taxuschinensis (Pilg.) Rehd. Taxusmairei (Lemee et Levl. ) S. Y. Hu, Abies chensiensis Van Tiegh, Picea neoveitchii Mast. , Pseudotsuga sinensis Dode, Cephalotaxus oliveri Mast. , Torreya fargesii Franch, Michelia maudiae wilsonii Finet et Gagnep, Liri- odendron chinense (Hemsl.) Sarg, Cercidiphyllum japonicum Sieb. et ZuccMachilus nanmu (Oliv.) Hemsl. , Phoebe zhennan S. Lee et F. N. Wei, Ormosia henryi Prain, Phellodendron chinense Schneid Toona ciliata Roem Toona ciliata vat. pubescens (Franch.) Hand.-Mazz) belong to the second, accounting for 48.48% of the total, 9 species (Zelkova schneideriana Hand.-Mazz. Fagopyrum dibotrys (D. Don) Hara Magnolia officinalis Rehd. et Wils. Magnolia officinalis Rehd. et Wils. ssp. biloba (Rehd. et Wils. ) Law Euchresta japonica Hook. f. et Regel Ormosia hosiei Hemsl. et Wils. Camptotheca acuminata Decne. and Sorghum propinquum (Kunth.) Hitche) belong to the third, accounting for 21% of the total, and 3 species (Cinnamomum longepaniculatum (Gamb.) N. Chao and Glycine soja Sieb. et Zucc) belong to the fourth, accounting for 9.09% of the total. Some effective conservational measures have been provided.
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