摘要
对太行花种群地理分布、生境因于等方面的调查表明：太行花分布在太行山东缘。其分布特点是：①在海拔６００～１５００米之间里间断、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。
Through the investigations on the geographical distribution of T. repestris, the habital factors of its distribution area,the results show that T. rupestris is strip-shaped distributed disjunctedly and sporadically in the limestone regions of the eastern margin of Taihang mountain from 600 to 1500m in altitude, and it only grows in crevices of shadow slopes. where the climate is hot and rainy in the summer and dry and chilly in the winter. There is a little soil in the crevices where T. rupestris grows. The soil is characterized by the low water-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 to nine families and 11 genera were found in the three investigated qudrats. The floristic composition is very simple and can be classified as typical dry shrubgrass vegetation type. Consequently, it is the special habitat that may be the direct reason for the endangerment of T. rupestris.
出处
《生物多样性》
CAS
CSCD
1994年第4期210-212,共3页
Biodiversity Science
关键词
太行花
生境
分析
生殖
蔷薇科
special habitat, Taihangia rupestris, habitat analysis
