Chin J Plan Ecolo ›› 2002, Vol. 26 ›› Issue (增刊): 52-56.

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INTERSPECIFIC RELATIONSHIPS AND ENVIRONMENTAL INTERPRETATION OF THE MAIN TREE SPECIES IN THE FOREST COMMUNITIES OF ZHUWEIGOU IN LISHAN MOUNTAIN NATURE RESERVE

ZHANC Fengl,2, ZHANC Jin-Tun2, HAN Guang-Ye3   

  1. 1 Laboratory of Quantitative Vegetation Ecology, Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China; 2 Institute of Loess Plateau, Shanxi University, Taiyuan 030006, China; 3 Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
  • Online:2015-03-09 Published:2002-09-01

Abstract:

Abstract The interspecific relationships of the main tree species in the forest communities were studied using Fisher’s exact test for a 2 × 2 contingency table, Pearson’s correlation coefficient, Spearman’s rank correlation coefficient. 1) The number of species-pairs having positive or negative correlation for Spearman’s rank correlation coefficient test was higher than that of Pearson’s correlation coefficient. Compared with Pearson’s correlation coefficient, Spearman’s rank correlation coefficient test was more sensitive. 2) Similar ecological adaptability to habitats led to positive correlation between species, and different ecological adaptability resulted in negative correlation, which was proved with environmental interpretation of interspecific relationships. 3) Based on the results, 18 tree species in the communities were divided into four ecological groups, serving as an important theory basis for studying forest structure, function, dynamics and succession.

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