生物多样性 ›› 1994, Vol. 02 ›› Issue (4): 210-212.  DOI: 10.17520/biods.1994034  cstr: 32101.14.biods.1994034

• 论文 • 上一篇    下一篇

太行花生殖生物学研究I 太行花生境的分析*

沈世华,陆文梁,王伏雄   

  1. (中国科学院植物研究所，北京 100044)
  • 收稿日期:1993-12-30 修回日期:1994-03-02 出版日期:1994-11-20 发布日期:1994-11-20

Studies on the reproductive biology of Taihangia rapestris: I Analysis on the habitat of T. repestris

ShenShihua, Lu Wenliang, Wang Fuhsiung   

  1. Institute of Botany,Academia Sinica,Beijing 100044
  • Received:1993-12-30 Revised:1994-03-02 Online:1994-11-20 Published:1994-11-20

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被引次数

Baidu 22

摘要： 对太行花种群地理分布、生境因子等方面的调查表明。太行花分布在太行山东缘。其分布特点是：①在海拔600～1500米之间呈间断、零星、条带状分布；②主要生长在阴坡裸露崖壁的缝穴中。其生境特点是：①夏季炎热多雨，冬季干燥寒冷。昼夜气温变化剧烈；②着生太行花的崖缝土壤极少，有机质贫乏，但含钙量较高；③太行花群落中植物种类稀少，在调查的3个样方中仅有15个种，分属于9个科，11个属，为温带旱生灌草类型。太行花的这种特殊生境，可能是它致濒的直接原因。

关键词: 生物多样性, 自然资源, 山地, 地形要素, 生态效应

Abstract

Through the investigations on the geographical distribution of T. repestris, the habital factors of itsdistribution area,the results show that T. rupestris is strip--shaped distributed disjunctedly and sporadically inthe limestone regions of the eastern margin of Taihang mountain from 600 to 1500m in altitude, and it onlygrows in crevices of shadow slopes. where the climate is hot and rainy in the summer and dry and chilly inthe winter. There is a little soil in the crevices where T. rupestris grows. The soil is characterized by the lowwater-holding capacity, poor organic matter content and extremely high calcium concentration. The community of T. rupestris is composed of very limited number of species. Only 15 species which belonged tonine families and 11 genera were found in the three investigated qudrats. The floristic composition is verysimple and can be classified as typical dry shrubgrass vegetation type. Consequently, it is the special habitatthat may be the direct reason for the endangerment of T. rupestris.

Key words: topographic element s, natural resources, mountain, ecological benefits, biodiversity

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