Study On Diversity And Establishment Of The Evaluation System Of Wild Orchid Resources In Anhui Province

Germplasm resources of species, geographical distribution, type of wild orchids in Anhui were annlysed in detail on the basis of sorting data, literature review, combined with the wild orchids of special investigation. The AHP was also applied to evaluated these wild orchid of Anhui. Results are as follows:(1) There were 34 genera 56 species of wild orchids in Anhui province, the genera and species of wild orchids are disperse relatively and possess diversity; But they are short of big genera, mainly small genera and species and distribut sporadically.(2) Anhui province is one of the main producing area of the East China, and the important origin of the world. The percentage with genera and species is larger with an accounting for 55.4%,75.6%.(3)The life-forms of orchids are multifarious in Anhui.mainly terrestrial type. It develops in retirement, grassland, rock, valley, stream, the genera of terrestrial orchid has 26,the percentage of genera of terrestrial orchid is 76.5%,the species has 43,the percentage of species is 76.7%,the genera and species of epiphytic orchid has 5 and 9.the percentage is 14.7% and 16.1% relatively, the genera and species of saprophytic orchid has 3 and 4,the percentage is 8.8% and 7.1%relatively.(4)The vertical distribution pattern of the wild orchid resource in Anhui was regular: there are less orchids in low altitude, increase with increasing of elevation, and with they reach the extremum value.they decline.(5) The wild orchids resources in Anhui are distributed in Yangtze river hilly. Wannan Mountains, Ta-pieh Mountains, mainly concentrated upon Ta-pieh Mountains and Wannan Mountains.(6)The geographical elements of orchids are divided into nine types and three variants. Pantropic is little more than Temperate elements, they are neck and neck which show that the component of the orchids flora in Anhui is complex and the obvious transition characteristics of temperate orchids and subtropical.(7) AHP method was used to evaluated the development and utilization of wild orchids by using 15 view indexes. The results showed that flower diameter weight accounted for 0.208,0.206 followed by the flower color, leaf color 0.148,0.139 of the number of flowers, the rest of the factor weight values are less than 0.1,and according to the comprehensive evaluation value 56 species of wild orchids are divided into 4 grades: Level ?(>3.5):Type of high development and utilization value:9 species; Level ?(3.0-3.5):21 species take second place; Level ?(2.5-3.0):22 species are average;Leve ?(<2.5):4 species have poor use value.