ZHAO Jianchang. Impacts of Tourism Disturbance on Biological Diversity and Soil Properties of Typical Steppe in Helan Mountain Scenic Area[J]. Bulletin of Soiland Water Conservation, 2015, 35(3): 293-298.
DOI:
ZHAO Jianchang. Impacts of Tourism Disturbance on Biological Diversity and Soil Properties of Typical Steppe in Helan Mountain Scenic Area[J]. Bulletin of Soiland Water Conservation, 2015, 35(3): 293-298. DOI: 10.13961/j.cnki.stbctb.2015.03.060.
Impacts of Tourism Disturbance on Biological Diversity and Soil Properties of Typical Steppe in Helan Mountain Scenic Area
[Objective] To explore impacts of tourism disturbance on biological diversity and soil properties of typical steppe in Helan Mountain scenic area in order to further understand the ecological effect and mechanism of tourism disturbance
and to provide the reference for the protection of scenic resources and environment management. [Methods] Sample investigation was conducted to different intensity of tourism disturbance (LD
lower tourism disturbance; MD
middle tourism disturbance; HD
high tourism disturbance) on biological diversity and soil properties in Helan Mountain scenic areas. [Results] (1) Tourism disturbance significantly reduced the vegetation coverage
litters
and the index of diversity
richness and evenness(p<0.05). (2) Tourism disturbance had a large influence on soil physical and chemical properties
as the interference intensity increasing
soil bulk density increased
and water content
electrical conductivity decreased. (3) Soil microbial biomass carbon and nitrogen had a larger range ability which was the most sensitive to tourism disturbance. (4) There was a marked effect on soil nutrients
soil organic carbon
total nitrogen
alkali-hydrolyzale nitrogen
microbial biomass carbon and nitrogen were significantly reduced with the interference intensity increasing
potassium and available potassium increased; (5) The basic correlation of soil nutrients factors of tourism disturbance was consistent with CK
on the whole
the total soil nutrient was significantly positive correlation to the soil available nutrients(p<0.01). [Conclusion] Moderate tourism disturbance had no effect on vegetation properties. Tourism disturbance had effects on soil properties
and the effects did not change the interactions of soil nutrient factors.
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references
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