Study On The Ecology Adaptations And HPLC Fingerprint Of Profected Plant Cibotium Barometz

Cibotium barometz (Linn.)J.Sm. is the class II protected plant in china,is in the Cibotium and the Dicksoniaceae,is perennial herb that likes the tree. It is the traditional medicinal materials and grow in the raceway.It's quantity and distribution are decreasing fastly.It has been provided with the characte of endangered plants.This paper studies on the six populaitions of C. baromatz by methods of community, morphological maker and HPLC to analyze the ecological adaptability,and to provide theories for protection,exploitation and ulization of C. baromatz.The following conclusions are drawn:1) Cibotium baromatz lives in the acid soil high in water and in the northwestren and northeastern slope in the high degree of canopy density by the gutter.The communities of Cibotium baromatz in the same area are resembled.The primary associated species are Arachniodes falcate, Woodwardia japonica,Dicranopteris dichotoma, Arthraxon hispidus,Alpinia japonica, Lysimachia paridiformis and Hicriopteris glauca.The water content and altitude have a palpable impart upon communities of C. baromatz. The species diversity of the communities C. baromatz has a high degree of similarity.The organic content in the field has a great effect upon the species diversity.2) The measure indexes in nutritious organ and futile organ of C. baromatz such like length and width vary great. The first three principle component contribution of 45 morphological characters is 44.21%.There are 6 characters whose total loadings on the first three PC's of the Cibotium barometz are bigger than 0.8,such as 38(penultimate pinna area),22(the length of penultimate pinna),14(the width of first pinna),40(the length of rhizomorphous stem),43(the width of sporangiosorus top)and37(the distance between the first pinnule and the second pinnule of penultimate pinna).they are importance in the first three PCA.The first ten PCA component contribution of 45 morphological characters are 74.283%. The content of kalium and water in field are the most influence factors to the morphological characters.The population and the individual have some morphological differentiation, especially the individual.3) The method of HPLC fingerprints are simple, accurate, and have a good quality of repetition. It can be applied to study the fingerprint of C. baromatz and thus can offer the scientific evidence in effectively controlling its quality as well as its classification.4) All the results indicate the water content and altitude have a palpable impart upon communities of C. baromatz, the organic content in the field has a great effect upon the species diversity and the content of kalium and water in field are the most influence factors to the morphological characters.They can provide theories for protection,exploitation and ulization of C. baromatz.At the same times,the PCA of C. baromatz can predigest the program of investigate and study.