生物多样性 ›› 1998, Vol. 06 ›› Issue (4): 292-297.DOI: 10.17520/biods.1998044

• 论文 • 上一篇    下一篇

中国野生的香根草种及其保护与分类问题

夏汉平,敖惠修   

  1. (中国科学院华南植物研究所,  广州 510650)
  • 收稿日期:1997-09-29 修回日期:1998-04-13 出版日期:1998-11-20 发布日期:1998-11-20

Wild vetiver grass distributed in China and its protection and taxonomic problems

XIA Han-Ping, AO Hui-Xiu   

  1. South China Institute of Botany , The Chinese Academy of Sciences , Guangzhou 510650
  • Received:1997-09-29 Revised:1998-04-13 Online:1998-11-20 Published:1998-11-20

摘要:

香根草(Vetiveria zizanioides)这一优良的水土保持和多用途植物目前在热带和亚热带地区广泛推广应用。中国的香根草栽培种主要是在50年代从国外引进的,但在广东和海南也有这一植物的野生种存在,尤其在广东的吴川有一块面积达6670 hm2左右的野生香根草群落。然而,由于人类活动的影响和过度开发利用,40年间,这片热带草原已遭到严重破坏,面积和蕴藏量都大幅度减少。为了不使这片珍贵的湿地消失殆尽,必须尽快采取措施加以保护。另外,香根草属的系统分类还很不完善,上述在中国分布的野生居群究竟是香根草还是野香根草(V. nigritana),迄今还没有定论,经对标本的研究鉴定,初步确定为香根草(Vetiveria zizanioides)。

关键词: 三峡工程, 特有濒危植物, 荷叶铁线蕨, 保护

Abstract:

Vetiver grass (Vetiveria zizanioides), a  multi purpose grass mainly for soil and moisture conservation and used as hedgerow, has been widely disseminated and applied in the tropics and sub-tropics. China's domesticated vetiver was introduced from abroad in the 1950's, while the distribution of the wild variety has existed all long in Guangdong and Hainan of China. An area of up to 6670 hectares of natural vetiver community was found in Wuchuan County, Guangdong of China. This tropical grassland, however, has been severely destroyed due to the effects of human activities and excessive utilization, which has been rapidly dwindled over the past 40 years. A proposal was put forward in this paper for protecting vetiver, as well as the wetland and biodiversity. Currently, since the taxonomic problem of the Vetiveria species is still far from clarification, it is difficult to confirm which species the wild form of vetiver in China belongs to. Anyway, the specimen study in this paper indicates that it is V. zizanioides, not V. nigritana or other species.

Key words: he Three-Gorge Project endangered and endemic plant, Adiantum reniforme var. sinense, conserva-tion strategies