阿尔金山北麓野骆驼生境植被调查研究

Vegetation Characteristic in the Habitat of Wild Bactrian Camel in the Northern Slope of Altun Mountains

阿尔金山北麓是野生双峰驼的主要分布地区之一,在该地区野生双峰驼的生境内设立样线样方,对野生双峰驼生境内沙漠植被组成、地理区系和群落多样性等特征进行调查分析。结果表明,该地区的沙漠植物较为稀少,有9科17属17种植物,植物区系倾向于集中在少数大科和单种属内,优势科属的组成较少;该地区植物科的地理分布型有3种,属有5种地理分布型和2个变型,总体植物区系的温带性质较为明显,并呈现了与古地中海成分的相关性;该地区的植物群落物种组成稀少,结构单一,群落多样性指数较低,这与荒漠植物生境的严酷性有密切关系。

The Northern slope of Altun Mountains is one of the main distribution area of wild Bactrian camel. The desert vegetation composition, floristic and community diversity in the habitat of wild Baetrian camel were investigated through the transect sampling in this area. The results indicated that the desert plant species in this area were more scarce, which consist of 9 families, 17 genera and 17 species. The composition of these species presented a tendency of distributing in preponderant families and monophy- letic genera with less part of dominant families and genera. There are 3 geographical distribution patterns of families, 5 patterns and 2 variations of genera; A temperate climate of the overall flora area are obvi- ous, and showed the correlation with the ancient Mediterranean plant species composition. The communi- ty of this area was composed of rare species and was of single structure with a low index of community di- versity, which has a close relationship with the harsh desert plant habitats.