甘草Glycyrrhizeuralensis不同分布区群落物种-河北农业大学学报.PDF

33 2 Vol.33 No.2 20 1 0 3 J OURNA L OF AGRICULT URAL UNIVERSIT Y OF H EBEI 　 　 Mar .20 10 :1000-1573(2010)02-0013-04 (Gly cy rrhiz e ura lensis ) 1 1 1, 2 尚辛亥, 　阎玉凝, 　王文全 ① (1., 100029;2., 100029) :, , 。:, , , , ;, 0.5;, 0.2 ; , , 90.3 %。, 。 　　:;; + :S 5 7.7 1 :A A comparative study on community structure and characteristics of Gly cy rrhiz e uralensis at different area 1 1 1, 2 SHANG Xin-hai , YAN Yu-ning , WANG Wen-quan (1.Beijing University of Chinese Medicine, Beijing 100029, China;2.The Engineering Research Center for Chinese Medicine Standardized Production of Educational Ministry, Beijing 100029, China) Abstract:Using tw o methods of sample and line transects to conduct community survey on dif- ferent community in w hich Gly cy rrhiz e uralensis distributed.Through comparing the commu- nity characteristics and ground biomass on different community, the main results are as fol- low s:In G.uralensis distribution, the number of species from east to west is along with a de- crease in precipitation decrease;T he community of species richness index decreases with de- creasing latitude, Diversity index Zhenlai the highest, lowest Yanchi.T he highest evenness in- dex is Hangjinqi.The community similarity coefficient between the different community is less than 0.5;The dominant species in the community at Hangjinqi are G.uralensis of w hich the important value is 0.2