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Studies On The Seed Plant In ShanShan Of XinJiang

Posted on:2009-01-25Degree:MasterType:Thesis
Country:ChinaCandidate:J Y GuoFull Text:PDF
GTID:2120360245985581Subject:Botany
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ShanShan locates easten of Tulufan Basin,its latitude is 41°12′~43°33′and longitude is 89°30′~91°54′。The lenth is 250 km and width is 190 km,the area is about 3.83×104km2。This peper studied the systems taxonomy of wild seed plants in ShanShan,on its basis the species diversity which including the trait of genera and species and flora constitution character and so on was analyzed。The resource was appraised and classified at the end。The research indicated:About 48 families,177genera,and 296 species,2 sub-species and 1 variaties wild seed plants were recorded to occur in Shan Shan,among these plants there were 25 genera 96 specise new record of ShanShan。Among these plants,there were 4 species of gymnosperm,which belong to 2 families and 2 genera;and 292 species and 2 sub-species and 1 variaties of angiosperm,which belong to 46 families and 174 genera。The family which included more genera and species were Gramineae,Compositae,Chenopodiaceae,Fabaceae and Cruciferae。There were 112 Monotypic genera (112 species),Oligotypic general 60 (153 species),which accounted for 97.17% and 88.63% of total genera and species in ShanShan,they composed the main part of seed plants in ShanShan;however,there were only 5 Multitypic genera,which occupied small proportion。Among them,the endemic genera was 1 genera,the China endemic species were 8 spicies,the XinJiang endemic species were10 species and the Chinese XinJiang unique distribution species were 62species。According to the analysis of the areal-type in genera,the flora elements in Shan Shan are multiple,their geographical distribution can be classified into 11 types and 10 subtypes,the temperate elements occupy 72.3% of the total, especially the north-temperate elements,are dominant in the floristic composition,the Central Asial and the Temperate Asial were next。The Pantropic had closely relation with this flora,Old World Tropic and Tropic Asia had little relation。The hemicryptophytes and annotinus were 215 species,which occupy 71.91% of the total species and they composed the main life form;the aridisphytes and mesophytes occupy 77.92% of the total species which predominanted by the analysis of life form and ecotype,which is consistent with the temperate and desertis nature。The main wild plant resource include 28 species edible plant,22 species nectar source plant,95 species medicinal plant,208 species forage plant,68 species wild ornamental plant, 34 species industrial plant,7 species fiber plant,5 species fertilizered plant and 7 species poisonous plants。They had important value in edible,medicinal,forage,ornamental industrial and so on。...
Keywords/Search Tags:species diversity, flora, resource, ShanShan of XinJiang
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