Abstract:

Choose Impatiens davidi Franch population in Zhang Jiajie National Forest Park, set up permanent survey sample plot, study impact of soil physical and chemical properties and changing law of individual number, average height and coverage caused by forest tourism. The results show: Along with the increase of recreational activities frequency, number, average height and average coverage of Impatiens davidi Franch population has declined whole, Pilea microphylla (L.) Liebm and Meehania henryi (Hemsl.) be clearly competitive advantage, to a certain extent, cause the stress of survival to other species, this also is one of the reasons why Impatiens davidi Franch gradually recession for the population.