[1]钱慧蓉,杨国栋,陈 林*.四川东拉山大峡谷种子植物区系及植物资源研究[J].南京林业大学学报(自然科学版),2018,42(02):052-58.[doi:10.3969/j.issn.1000-2006.201704042]
 QIAN Huirong,YANG Guodong,CHEN Lin*.Studies on seed plant floras and plant resources of Dongla Mountain Grand Canyon, Sichuan Province[J].Journal of Nanjing Forestry University(Natural Science Edition),2018,42(02):052-58.[doi:10.3969/j.issn.1000-2006.201704042]
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四川东拉山大峡谷种子植物区系及植物资源研究
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
42
期数:
2018年02期
页码:
052-58
栏目:
研究论文
出版日期:
2018-03-20

文章信息/Info

Title:
Studies on seed plant floras and plant resources of Dongla Mountain Grand Canyon, Sichuan Province
文章编号:
1000-2006(2018)02-0052-07
作者:
钱慧蓉杨国栋 陈 林*
南方现代林业协同创新中心,南京林业大学生物环境学院, 江苏 南京 210037
Author(s):
QIAN Huirong YANG Guodong CHEN Lin*
Co-Innovation Center for the Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
关键词:
东拉山大峡谷 种子植物 植物区系 植物资源
Keywords:
Keywords:Dongla Mountain Grand Canyon seed plants flora plant resources
分类号:
S718.49
DOI:
10.3969/j.issn.1000-2006.201704042
文献标志码:
A
摘要:
【目的】了解四川东拉山大峡谷的植物区系与植物资源特征,为该地的植物多样性保护和植物资源可持续利用提供科学参考。【方法】通过野外实地调查,利用植物区系地理学及植物资源学方法,对东拉山大峡谷种子植物区系和植物资源进行了研究。【结果】①该区共有种子植物117科390属836种; 生活型以草本为主,共353种,而乔木、灌木和藤本分别有228、195和60种。②在科属组成上,含10种以上的优势科共有23科203属524种,分别占该地区种子植物总属种的52.05%和62.68%。③植物区系成分在科的水平上热带成分最高,其中以泛热带成分为主,占41.36%; 而在属种的水平上,以温带成分占绝对优势,其中又以北温带分布占比最高,分别为属种总数的30.92%和46.76%。【结论】从东拉山分布区的类型来看,科的起源以热带性质为主,而属的性质则以温带分布为主,且具有明显的过渡性质; 通过与临近地区种子植物区系聚类分析,东拉山的植物区系与白马雪山的类型相似,温带成分较多,热带成分较少。东拉山大峡谷植物资源丰富,以材用、药用、食用和观赏4类为主,具有较高的开发利用价值。
Abstract:
【Objective】 This study aimed to investigate the seed plant flora and plant resource characteristics in Dongla Mountain Grand Canyon, Sichuan, providing basic information for the conservation of biodiversity and utilization of sustainable resources.【Method】Based on a field investigation, information on the floristic geography and plant resources was used to analyze the seed plant floristic composition and resource characteristics in this area.【Results】①There were 836 species belonging to 390 genera and 117 families. In addition, 353 herbs, as the primary life form, were identified, accompanying 228 trees, 195 shrubs, and 60 lianas. ②The 23 dominant families that contained more than 10 species, including 203 genera and 524 species in total, accounted for 52.05% and 62.68% of all genera and species, respectively. ③Tropical elements were dominant, especially the pantropic, which reached up to 41.36% at family level, while the temperate elements were extremely dominant at the genus and species level, with north temperate species taking up the highest proportion of both with 30.92% and 46.76%, respectively. 【Conclusion】 The floral constitution of this area had an old and simple origin at the family level, but was complex with regard to genera. The origin of the genera was mainly tropical, while the genera were dominated by those of temperate distribution with obvious transitional characteristic. The cluster analysis of five regions indicated the highest floral similarity was between Dongla Mountain and Baima Snow Mountain, which were mainly temperate, and were accompanied by some tropical elements. The plant resource types were mainly wood, medicinal, edible and ornamental, which have high development and utilization values.

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金项目(31300558); 江苏省自然科学基金项目(BK20130972); 江苏高校优势学科建设工程资助项目(PAPD); 江苏高校品牌专业建设工程资助项目(TAPP); 南京林业大学高学历人才基金项目(GXL201308) 第一作者:钱慧蓉(1014730241@qq.com)。*通信作者:陈林(clinechen@njfu.edu.cn),讲师,博士。
更新日期/Last Update: 2018-06-12