Study On The Flora Of The Vascular Plants In The Dalinor National Nature Reserve

In the Inner Mongolia Plateau,Dalinor Nature Reserve is designed for the integrated nature protection of rare dirds,wetland,grassland,forestry and sandland ecosydtems.The flora of vascular plant is divided into three flora:grassland,wetland and sandland.Based on the investigations of vegetation and the collection of the samples,same statistics and comparatively intensive anaylsis on the native vascular plants of the three region were carried out at family,genus and species level respectively in this paper.It includes the floristic composition,the floric area-types,the relationship with the three region and circumferential floras.The results were showed as follows:(1)It is abundantof in species,with 434 species of vacular plant which belong to 252 genera and 67 families.(2)Dominance families is obvious,single-species families and single-sepecies genea are rich.perennial herbage here are dominant in life styles.(3)The types of the distribution are various and geographical elements are complex.(4)The flora is of an obvious temperate feature.tropical elements are plentiful.It has something with tropic flora and shows some transitional nature.(5)flora younger,transition stand,the peculiar existence is not high.(6)the relationship with the three region,in terms of genera similarities,the grassland flor is more closely allied to wetland flora.the comparison of the floras makes it clear that Dalinor national nature reserve vascular pant flora is closely related to that of Xilinguole nature reserve,and then to that Gaogostai Han Wula nature reserve,Saihanwul nature reserve and Beijing mountains respectively.