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山西霍山植物群落种-面积曲线与物种多样性的关系

要元媛,闫明**,毕润成   

  1. (山西师范大学生命科学学院, 山西临汾 041004)
  • 出版日期:2013-01-10 发布日期:2013-01-10

Relationships of plant community’s species-area curve with species diversity in Huoshan Mountain of Shanxi, China.

YAO Yuan-yuan, YAN Ming**, BI Run-cheng   

  1. (College of Life Science, Shanxi Normal University, Linfen 041004, Shanxi, China)
  • Online:2013-01-10 Published:2013-01-10

摘要:

采用标准样方调查法,对霍山植物群落的物种数、面积和物种多样性之间的关系进行了研究。结果表明:种(对数)-面积(对数)曲线在各海拔处的R2值较种-面积曲线和种-面积(对数)曲线大,中海拔处的平均物种数最多,群落Margalef丰富度指数(R)和Shannon-Wiener多样性指数(H′)也最大,而Jaccard系数(J)最小。各海拔样地物种数的观察值与种-面积曲线和种-面积(对数)曲线在各海拔样地物种数的预测值接近。
 

关键词: 内蒙古典型草原, 凋落物分解, 放牧, 土壤动物群落

Abstract: By using standard sampling method, this paper studied the relationships of the plant community’s species number, area, and species diversity in Huoshan Mountain of Shanxi Province. In the stands at three different elevations, the adjusted coefficients of determination (R2 values) of species(log)-area(log) curves were higher than those of species-area curves and speciesarea(log) curves. At medium elevation, the mean species number and the Margalef index (R) and Shannon-Wiener index (H′) of the community were the largest, but the Jaccard coefficient (J) was the smallest. The estimated values of the species-area curves and species-area(log) curves in the stands at the three different elevations were close to the observed values.

Key words: litter decomposition, Inner Mongolia typical steppe, grazing., soil animal community