Abstract:
The meadow of Kobresia bellardii in the south top of Wutai Mountain was researched in the paper by Pearson and Spearman correlation analysis, and the interspecific relationship of different meadow population under tourism disturbance was discussed for vegetation restoration in scenic spot. The results showed that the positive correlation was showed among interspecific relationships of meadow populations at the same distance belt, which indicated that these plant species had the same ability of anti-tourism disturbance. The closer the distance was from parking lot, the stronger the resistance of plant species was, and the further the distance was, the weaker the resistance of plant species was. According to the results of Pearson and Spearman correlation analysis at different distance belts, 17 populations were divided into four ecological species groups. The first species group includes Anaphalis hancockii, Vicia unijuga, Dendranthema chanetii and Oxytropis caerulea whose ability of anti-tourism disturbance was the worst. The second species group includes Kobresia bellardii, Sanguisorba officinalis, Anemone rivularis var. flore-minore, Potentilla nivea, Carum carvi and Saussurea purpurascens. The third species group includes Festuca rubra and Polygonum aviculare whose ability of anti-tourism disturbance was the strongest. The fourth species group includes Polygonum viviparum, Plantago asiatica, Gentiana macrophylla, Alchemilla japonica and Taraxacum platypecidum. The resistance of dominant plant population from strong to weak against tourism disturbance was Festuca rubra, Polygonum viviparum, Kobresia bellardii, which indicated that the meadow of Kobresia bellardii should be protected. Comparing the two results of Pearson and Spearman correlation analysis, it could be seen that the number of correlative species pair was much lower in the former than that in the latter, which indicated a higher sensitivity by Spearman.
