The Investigation of Tourism Effect on Biodiversity Species Plants and Soil in Namak Abrud's Tourist Zon

Iran has desirable plant species variety due to it,s echological diversity ; so, has an important situation in global biodiversity. This variety has led to unique attractions for tourism as an outstanding universal values. In regard to the effect of tourism on conversions of ecosystem conditions, can effect on various biodiversity indices. As a result this study paid on this case in Namak Abroud frosted tourism region. For this aim the study area based on tourism abuses, divided into 2 zones including: Low-tourism pressure and High-Tourism pressure. In each zone ten sample plots with an area of 100m2 and two microplots and area of 4m2 had been selected systematical random for concentration of woody and vegetative species, and at the same time in every sample plot, also soil sample plots were collected. In order to compare and test the variety between two zones various biodiversity, reachness and evenness indices has been used and in order to compare the meaning ful average indices. T-test is used. The collected soil samples were analyzed in lab to examine the physical qualities. The results has shown the rate of variety indices in Low-tourism pressure zones is more than High – tourism pressure zones the soil humidity in Hightourism pressure zones was extremly influenced by tourism, and growth coudition was under its negative effect. Overall that High-tourism pressure has significant effect on decreasing little material, soil humidity, number of plants species, reachness, diversity, increasing soil density and evenness index.