Study on the Flora of Forest Trees of West Kunlun Mountains in Xinjiang

Investigated the forest trees of West Kunlun Mountains in Xinjiang by the field investigation and morphological taxonomy,the flora composition and features were analyzed.The results showed that the West Kunlun Mountains in Xinjiang was arid mountains,there were 17 families,25genus,and 54 species including 6kinds of new records in West Kunlun Mountains of Xinjiang.In the flora,the richness of genus was big,but had only few species,there were 1-3genus in every family and few large families,only Salicaceae and Rosaceae was bigger families(5generas and 16species).While the single genus and minor-genus of families were both 11 families and as high as 64.71%,minor-species genera and single-species genera were up to 24 genus including 47 species,occupying 96.00%and 87.04%of the total number of generas and species separately in the region.They were a major component of plants of the genus and family and showed the natural conditions was very harsh and only 1species of most families and genus distribute in this area.The species of forest trees was few,but most of them were establisher and dominance in this region,forming a obvious a single or composite community.Flofistic element with obvious temperate characteristics had 5distribution types and 4variants,having a certain link with the Mediterranea,West Asia and Central Asia area,while they were rare connection with Eest Asia.