Study On The Plant Flora And Product The Map Of Rangeland Resource In The Pamirs

Pamirs across Three countries of central Asia, Silk Road between East and West as the only way to communicate, Its strategic significance is well known. On the other hand, its special geographical position and climate characteristics formed the rich plateau ecosystem, also decided to its complex floristic species diversity. This paper regards the East and West Pamirs as study area(East pamir, mainly in the territory of China; west pamir mainly in Tajikistan). Based on collecting data and the method of mathematics statistics, this paper analyzes the characteristics of flora, grassland type and rangeland resource; The ideas of the rangeland resources is the first time to study grassland vegetation in pamir region. The concrete results as following:1. There are 846 species of seed plants in flora of East Pamirs and belonging to 54 families and 274 genera; and West Pamirs consist of 2429 species of seed plants belonging to 79 families and 491 genera.2. From the level of families, there is given priority to with widespread, followed by the temperate distribution; But the east Asia and tropical South America discontinuously distributed only belongs to west pamir region. From the level genera, In addition to the distribution of tropical Asia and tropical Africa, west pamir region contains almost all of the areal types. There is given priority to the temperate distribution in west and east pamirs. West pamirs region and tropical composition have a connection. The eastern pamir area have a Chinese endemic genera.3. On the basis of rangeland resources classification method: class of grassland resource in the pamirs have 15 and 39 in grassland resources type.