生物多样性 ›› 1995, Vol. 03 ›› Issue (2): 91-94.doi: 10.17520/biods.1995016

• 论文 • 上一篇    下一篇

木论喀斯特森林区生物多样性初报

蒋国芳   

  1. (广西科学院生物研究所,南宁 530003)
  • 收稿日期:1994-02-17 修回日期:1994-06-21 出版日期:1995-05-20

A preliminary report on the biodiversity in the Mulun Karst Forest

Jiang Guofang   

  1. Institute of Biology,Guangxi Academy of Sciences,Nanning,530003
  • Received:1994-02-17 Revised:1994-06-21 Online:1995-05-20

本论喀斯特森林区位于广西环江毛南族自治县西北部。初步调查表明;(1)该林区属于中亚热带石灰岩常绿、落叶阔叶混交林生态系统,森林植被保存较好,面积为13 179.2公顷,森林覆盖率高达84%,这在世界同纬度地区实属罕见;(2)这次考察发现的成片单性木兰林是我国森林植被类型的新纪录、(3)该林区植物以亚热带成分占优势,热带成分次之,温带成分也有一定的比率,其区系主要为泛北极植物区中国-日本森林植物亚区滇黔桂地区的成分;(4)该林区有野生维管束植物537种,脊椎动物73种,昆虫410种,大型真菌69种,其中有国家级保护植物12种、动物19种,发现9个昆虫新种以及10种名贵的地下块菌。最后,本文阐述了该区生物多样性价值及保护现状,提出了进一步研究、保护和持续利用该区生物资源的合理化建议。

Mulun Karst Forest is situated at northwest of Huangjiang Maonan Autonomous County, Guangxi, China. Some results have been obtained after a preliminary survey. (1) It is a well preserved ecosystem of evergreen and deciduous broad-leaf mixed forest on the lime-stone of central subtropical zone. The forest areais 13 179. 2 ha. and the coverage is as high as 84%, that is rare in the world at the same latitute. (2) Alarge area of forest dominated by species Kmeria septentrionalis in different ages has been found. It is a newrecord of forest formation in China. (3) Its flora consists of the elements of Yunnan, Guizhou, Guangxiregion, Sino-Japan forest sub-realm, Holarctic realm. The subtropical floristic composition in the forest ismost abundant. The tropical composition with small part of temperate composition exist as well. (4)Species diversity in this ecosystem is mainly composed of 537 spp. of higher plants, 73 spp. of vertebrates,410 spp. of insects and 69 spp. of large fungi. Among them 12 spp. of plants and 19 spp. of animals areprotected at the National level. Nine new species of insects and 10 valuable underground terfas were identi-fied. The status and assessment of biodiversity in this area were described and the further conservation andsustainable use were suggested.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed