金佛山自然保护区外来入侵植物种及其分布情况

草业学报 ›› 2009, Vol. 18 ›› Issue (3): 34-42.

金佛山自然保护区外来入侵植物种及其分布情况

孙娟^1,2,杨国锋^1*,陈玉成²,滕永青²,颜俤²,易思荣³

1.青岛农业大学经济草本植物应用研究所,山东青岛 266109;
2.西南大学,重庆
400716;
3.重庆市药物种植研究所,重庆 408435

收稿日期:2008-07-16 出版日期:2009-06-20 发布日期:2009-06-20
作者简介:孙娟(1976-), 女,内蒙古赤峰人,副教授,博士。E-mail:sunjuan@qau.edu.cn
基金资助:
国家自然基金项目 (30600428)和西南农业大学博士启动基金项目资助。

Exotic plants in the Jinfo Mountain Nature Reserve: Species ascertain and their distribution

SUN Juan^1,2, YANG Guo-feng¹, CHEN Yu-cheng², TENG Yong-qing², YAN Di², YI Si-rong³

1.Institute of Economic Herb Plants, Qingdao Agricultural University, Qingdao 266109,
China;
2.Southwest University, Chongqing 400716, China;
3.Institute of Medicine
Plantation of Chongqing, Chongqing 408435, China

Received:2008-07-16 Online:2009-06-20 Published:2009-06-20

摘要/Abstract

摘要： 生物入侵对全球的生物多样性造成了严重威胁。自然保护区是保护生物多样性的重要基地,因此,自然保护区的生物入侵现状如何备受关注。本研究以金佛山国家一级自然保护区为研究区域,采用样方法和野外踏勘法对金佛山自然保护区的外来植物进行了调查,初步调查结果如下:1)在金佛山共发现56种外来植物种,主要是草本类植物,且多呈零星分布,绝大部分外来植物与本地植物一样仅仅作为一种可利用资源出现,而且没有出现明显的相互竞争,但五节芒具有突出的入侵分布特征;2)56种外来植物中有31种是有意引进的,占入侵种总数的55%;15种是自然入侵的,占27%;有9种是入侵来源不明的,占16%;1种是伴随其他物种无意引进的,占2%。而目前危害面积最大的五节芒就是入侵通道不明的外来植物种;3)调查的样方中外来植物的出现频度与干扰程度相关,干扰越严重的,出现外来植物种的几率越大,踏勘也呈现了同样的规律。

Abstract: Abstract: Invasion of natural ecosystems by exotic plant species is a major threat to biodiversity. The nature reserve contains a diversity of plant species. However, many exotic plant species have become established, potentially damaging the structure and function of native plant communities. The exotic plant species were investigated at selected sites and by walking through the Reserve (JFM), 1) Fifty six exotic plant species found in the JFM. They were mainly herbaceous plant species sporadically distributed in the park. The distribution of most of the alien plants (except Miscanthus floridulus) was consistent with human disturbance and together with the native plant species could be used as an available resource since they were not in competition with each other. 2) the exotic plants became established in four ways: introduced intentionally (31 species), natural invasion (15 species), uncertain, probably invasion (9 species), and introduced accidentally (1 species): the percentages were 55%, 27%, 16%, and 2%, respectively. 3) the frequency of invasive plants was positively correlated with human disturbance

中图分类号:

Q948.13

孙娟,杨国锋,陈玉成,滕永青,颜俤,易思荣. 金佛山自然保护区外来入侵植物种及其分布情况[J]. 草业学报, 2009, 18(3): 34-42.

SUN Juan, YANG Guo-feng, CHEN Yu-cheng, TENG Yong-qing, YAN Di, YI Si-rong. Exotic plants in the Jinfo Mountain Nature Reserve: Species ascertain and their distribution[J]. Acta Prataculturae Sinica, 2009, 18(3): 34-42.

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