Study On Diversity And Utilization Of Medicine Plant Resources In Yushu City

Yushu city is located in the east of qinghai-Tibet Plateau,and its special terrain and climate have bred abundant and diverse wild medicinal plants.This study this wild medicinal plant resources in yushu city detailed investigation,and on this basis,from yushu city medicinal plant species composition,life form and geographical elements,geographical distribution,plant protection,medicinal parts and features were studied systematically,in addition,the authors made an evaluation of the medicinal plant resources in the region,This study aims to provide a basis for the protection and utilization of medicinal plant diversity in Yushu city,and has important reference value for the accurate management of medicinal plant resources in Yushu City.The main research results are as follows:1.Medicinal plant species was abundant.There are 502 species of medicinal plants in Yushu city,which belong to 64 families and 221 genera.In terms of the number and composition of families,there were only 3 families of Ranunculaceae,Fabaceae and Asteraceae in the larger family(30～99),12 families in the medium family(11～29),34 families in the small family(2～10),and 15 families in single species family.There were only 1 species of larger species(Pedicularis),and there were 21,71 and 128 genera of medium,minor and monotypic species,respectively.2.The life forms of medicine plants were diverse.According to Yushu city vegetation condition is divided into arbor,shrub and herb,etc.,the trees and shrubs,perennial herbs of above accounts for 70.9% of the total species of medicinal plants in this area,an absolute majority,the second shrubs accounts for 10.3% of the total of the species in the mountain,tree accounts for only 2.0% of the total of the species in the mountain,it seems that the yushu city alpine environment more suitable for plant growth.3.The flora of medicinal seed plants was diverse.There are 15 areal types of the genus.There were 13 areal types of the species,and the endemic distribution in China can be divided into 4 subtypes.The geographical composition of medicinal seed plants in Yushu city showed that the medicinal seed plants in Yushu city were widely connected with the flora,and had the characteristics of temperate zone.The geographical composition of medicinal seed plants in Yushu city indicated that the medicinal seed plants in Yushu city were mainly composed of components from Qinghai-Tibet Plateau,with a small amount of components from southwest China,North China and central China.4.The geographical distribution of medicinal plants changed obviously.Horizontal distribution: the species composition decreased significantly from southeast(335 species)to northwest(184 species)in Yushu city.Vertical distribution: Yushu city was divided into five elevations.The number of medicinal plant species increased first and then decreased in the range of 3 500 m to 5 000 m.The species in the range of 3 500 m to 4 000 m were the most abundant,with a total of 383 species,while the species above 5 500 m were the least,with only 17 species.5.Among the medicinal plants in Yushu city,there were 48 species of protected plants,belonging to 19 families and 35 genera,among which there were 12 species of national key protected wild plants(all of which are national ⅱ level protected wild plants),17 species of provincial key protected wild plants,21 species of threatened plants,and 12 species of plants listed as CITES.Among the medicinal plants in Yushu city,there were 181 species endemic to China,including 108 species endemic to qinghai-Tibet Plateau,3 species endemic to Qinghai,and none endemic to Yushu city.6.The medicine plants in Yushu City were diverse in the different parts of medicines,and the medicinal parts were mainly whole grass and root.The medicinal properties of medicinal plants showed diversity,and they were divided into four categories in terms of medicinal properties,mainly cold medicinal plants,followed by cold medicinal plants,warm medicinal plants and flat medicinal plants;In terms of medicinal taste,the species of medicinal plants with different medicinal tastes in Yushu city were in the order of bitter taste,spicy taste,astringent taste,flat taste,sweet taste,sour taste.In terms of medicinal efficacy,heat-clearing and antiseptic drugs accounted for the largest proportion,followed by wind-dispelling and dehumidifying drugs,painkillers,water infiltration drugs,detumescence drugs,blood activating drugs,cough,phlegm antiasthmatic drugs,hemostatic drugs,the rest of the relatively small.