Title: THE FLORA CHARACTERISTIC OF HERBS IN THE SOUTH AND NORTH MOUNTAINS OF LANZHOU
Abstract:Lanzhou is located in the central part of Gansu ranging from east longitude of 102°45′ to104°30′ and northern latitude of 35°32′ to 37°05′.Most part of Lanzhou belongs to arid climate in temperate zon...Lanzhou is located in the central part of Gansu ranging from east longitude of 102°45′ to104°30′ and northern latitude of 35°32′ to 37°05′.Most part of Lanzhou belongs to arid climate in temperate zone with annual average temperature 6.9 ℃,and Valley Basin often has high temperatures,but the temperature in northern and western mountain is generally lower than Valley Basin by 2.5℃.All above factors lead to obvious features in Lanzhou with diverse types of herbs,complex flora characteristics,significant habitat discrepancy and fragile ecology.After investigation more than one year,310 specimens of plants are collected and identified.It's concluded that there are about 125 herb species in Lanzhou,referring to 86 genera,27 families,most of them belong to perennial and mesophyte.There are Chinese endemic genera instead of gansu endemic genera,with plenty of monotypic genus and oligotypic genus in flora.According to The Areal~types of the Chinese genera of Seed Plants,written by Wu Zhengyi.There are 8 areal types and 6 subtypes.The Cosmopolitan and temperate distributional type is the main type,which accounted for 27.9% and 45.3%.Tropic ingredient proportion is 16.3%.The East Asia,the central Asia and the Mediterranean flora ingredient are mixed in this area.Read More
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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