The Research On Air Anion Effect Of Major Tourist Attractions In Anhui

This article is based on Langya Mountain,Huangfu Mountain,Taiping Lake,JiuhuaMountain,Tianzhu Mountain,Maren Peak,Tiantangzhai,which are the main touristattractions in Anhui Province. as the research object,choose the days in2010-2013inwhich the state of the atmosphere is relatively stable,and sunny day with little winddirection, little change of wind speed to observe the negative air ion concentration andthe main meteorological factors (light intensity, temperature, relative air humidity, windspeed, etc.) in the area. At the same time,the indoor environments of the exploratorysimulation experiment for air negative ions concentration and the regularity of death weredone, to provide the basis for an objective assessment of forest ecological tourist level ofnegative ions in the air in Anhui Province, as well as the theoretical support in theselection tourism direction for the government.The result of the Study are as follows:(1) With Gaussian plume model as the air negative ion diffusion reference model,using simulation estimates anion diffusion parameters, to establish local air aniondiffusion model. Model shows: in a calm environment, the air concentration of negativeions from the lateral boundary generating source±20cm, vertical boundary160cm,measured lateral diffusion range is±15cm, horizontal longitudinal at125cm. Anionderived diffusion in space is consistent with the simulation results.The indoor experimental results of aeroanion demise show that the air anion demiseas a whole showed a linear relationship, the corresponding relation between time andconcentration of the regression equation: Y=0.0368X+7.215, the death rate is0.0368,R2is0.8269.In which,the anion extinction rate in1m high is faster than which on theground.(2) The daily change of the air anion concentrations presents certain regularity, abimodal type curve, the peak first appears at10:00a.m. and low basic appears at about12:00at noon; the second peak value appeares at14:00, then decreases gradually; ahighly significant positive linear correlation is showed between the air anionconcentration and the relative humidity, the regression equation: Y=8.876X+122.5, R2is0.972.the concentration of air negative ions and temperature are significantly positivelyrelated, the regression equation: Y=-16.48X+755.9, R2is0.8269.(3)The negative air ion content and air cleanliness in JiuHua Mountain between usual days and buddhist days are significantly different, its sizes are Stream>Forestarea>Street area> Incense area, Because of more visitors and much incense surged inbuddhist days, the air negative ions concentration and air quality are generally lower thanthose in usual days. The air anion concentration increases with the attitude increasing firstand then decreases with the attitude increasing,which shows a single peak curve, the airnegative ions concentration in Yin slope is higher than that in sunny slope.（4）The air negative ions concentration in different types of water bodies isdifferent. Waterfalls effect the mostly, followed by streams, and the air negative ionsconcentration near jet streams is larger than that near slow flows, static lakes is theminimum, and a significant correlation is showed between air negative ions concentrationand distance from water body, namely the nearer the water negative ion concentration ishigher, the opposite is lower, the greater the gap, the greater the concentration of negativeions.(5) Different plant communities have different impacts on the negative air ionconcentration, and the abilities to improve air quality are quite different.s This resultsshow that the order of the negative ions concentration and the air quality in different plantcommunities from high to low is: coniferous forest(901/cm~3)> broad-leaved forest(729/cm~3)> shrub(597/cm~3)> lawn(435/cm~3). Air quality evaluation index CI values fromhigh to low air quality as follows:coniferous forest(0.9)> broad-leaved forest(0.75)>shrub(0.6)> lawn(0.44).