| The Beita mountain area of Xinjiang is located the northern of Qitai,Mulei and Balikun County,which is the border mountain of the eastern end of the Junggar basin and Mongolia's southwest.It is a long mountain,something about 350 km,north-south width of 30~55km.Based on the study of The Beita mountain in Xinjiang of field investigation and indoor identification,combined with the related literature,especially on the basis of previous research in this research team to collating,revision,supplement and perfect the species and distribution of vascular plants in this region of the general situation,and the system characteristics and plant resources the area of the plant area to do further analysis.The results show that the species of vascular plants are abundant in this area,including54 families,251 genera and 519 species,accounting for 44.26%,33.83% and 14.80% of the genera and genera of Xinjiang vascular plants,there are of vascular plants in this area,among which 5 species and 28 species are newly revised and supplemented.There are Compositae(including36 genus and 73 species)and Poaceae(32/64)in the large family(more than 50families).There are 5 families(including 20-49),such as Leguminosae(13/48),Chenopodiaceae(19/41),Chenopodiaceae(21/33),Polygonace(6/24),Rosaceae(5/23).Both accounted for12.96% of the number of families,while the genera and species included accounted for52.40% and 58.88%,which had obvious advantages and was the dominant families of the area.There are 7 families(including 10-19 species)in the middle families,30 families(including 2-9 species)in the few families,and 10 families in the single family.Composition of genera:there are 5 genera in large genus(more than 10 species),such as Astragalus(21),Oxytropis(14),Potentilla(14),Poa(11),Artemisia(10).These are contained in the area of plant species accounted for 13.49% of the total species,as the dominant genera;there are 7genera in many genera(including 6-9),with Taraxacum,Chenopodium,Polygonum,Allium,Zygophyllum,Lappula and Salsola,accounting for 2.80% and 9.63% in the area of plant genera and total species.There are 94 genera in the few species(2-5 species),including 254 species.There are 145 genera and 145 species in single species,both of which accounted for95.21% and 76.26% in the area of plant genera and total species.The genus is rich in diversity,but with few species.The two things of different vegetation,the western part of the Beita mountain vegetation type is rich,there are 54 families,243 genera and 500 species,with mesophyte,similar to the flora of Altai mountains;4 East Hill vegetation is less,there are 29 families,69 genera and 88 species,and in most terrestrial plants basically the same,and plant area of Junggar basin.There are 7 types of plant life forms in this area,among which perennial herb is dominant(63.97%),followed by annual herbs(19.27%),shrubs,semi shrubs,trees and parasitic plants are in the minority.There are xerophytes and mesophytes and wetland,aquatic and Halophytes in 5 types of plant ecological types in mesophytic and xerophytic,respectively accounted for 73.79% and 17.15% of the total species.There are 5 distribution types and 5 distribution types in the areal type of seed plants.There are 9 areal types and 12 distribution types in the genus.The floristic elements of the genera of seed plants in this area show obvious temperate characteristics,accounting for59.83%,and are related to the Mediterranean,Western Asia and Central Asia,accounting for15.26%.But very few main distribution areas in the tropical and subtropical areas of the division,genera,there are individual species in the region also have a distribution.There are many kinds of resources plants and abundant species in this area.There are 176 species of medicinal plants,164 species of ornamental plants,120 species of forage plants,40 species of fragrant plants,28 species of sand fixing plants,26 species of edible plants,22 species of honey plants,20 species of fiber plants,18 species of oil plants,17 species of poisonous plants,15 tanning plant,7 kinds of green manure plants,14 kinds of rare and endangered wild plants and other resource types.Among them,medicinal plants,ornamental plants,feeding plants and aromatic plants are abundant.This paper systematically reveals the plant of type and floristic trait in the Beita mountain of Xinjiang,and the plant of resource types and kinds,supplement and enrich the content of the new research foundation in the area of Botany and data,and provides a theoretical basis and scientific basis for the rational use of ecological environment construction,local biodiversity the characteristics of plant protection,resources. |
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