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机构地区:[1]河北农业大学林学院,河北保定071000 [2]雾灵山自然保护区,河北兴隆067300
出 处:《河北林果研究》2002年第3期196-202,共7页Hebei Journal of Forestry and Orchard Research
摘 要:通过对雾灵山亚高山草甸植物群落基本特征的研究发现 ,在调查所涉及的 6 9种植物中 ,大叶章、硬质早熟禾、地榆、藁本、双花堇菜、细叶藁本、银莲花、披针叶苔草以及细叶苔草等植物的重要值较高 ,在群落中占据明显优势 ;群落的Simpson指数为 11 75 ;Shannon-Wiener指数为 4 19;PIE指数为 0 91。以这 3个指数为基础的群落均匀度指数分别为 0 17,0 6 9,0 93。从总体来看 ,群落的生态优势度指标偏高 。The study shows that the species of Calamagrostis purpurea, Poa sphondylodes, Carex lanceolata, Sanguisorba officinalis, Anemone cathayensis, Ligusticum sinense, Viola biflora, Carex rigescens and Ligusticum tenuissimum have greater Importance Values than that of the other 69 species through the study on the basic characters of the subalpine meadow community in Wuling Mountain area The Simpson Index of the community is 11 75, Shannon-Wiener Index is 4 19, and the PIE index is 0 91,and the Species Evenness Indexes which are based on the three indexes are 0 17, 0 69, 0 93 respectively It is concluded that the ecological dominance of the community is little higher than that of normal ones,and the species diversity is less
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