Studies On Ecological Benefits Evaluation In Heilongjiang Forest Botanical Garden

Ecological benefit is the best embodiment of Forest park' s service valuation. A scientificanalysis and evaluation of Forest Botanical Garden s ecological benefits can be the crucialguidance for the construction, development of tour activities and exploiture of tourist sceneryin f Forest Botanical Garden. Heilongjiang Forest Botanical Garden is situated in downtown,the result of its ecological benefits evaluation can provide some good advice to theconstruction and development of some other resorts in haerbin.The thesis takes the Heilongjiang Forest Botanical Garden as study object, ecologicalbenefits was studied. The suburb Greenland has been study systematically in May and July andSeptember, 2006. These ecological factors have been determined that are: fixed-carbon andoxygen-released, bacterial content, benefit of temperature decreased and humidity increasedbenefit of noise reduced and so on. The Heilongjiang Forest Botanical Garden greatly affect thecity environment quality. The main conclusion and suggestion as follows:From the research the conclusion is draw that the air condition of Heilongjiang ForestBotanical Garden is outstanding. Concentration of CO₂ is 378ppm in three month, it is lowerthan in urban area which is 399ppm. Vegetable can increase the concentration of O₂.Vegetable can increase humidity and cool down temperature of environment. As a result,the temperature in forest park is 2～4℃lower than the temperature in haerbin urban, and airrelative humidity in forest park is 6.2～14.2 percent higher than air relative humidity inhaerbin urban. The intension of illumination in urban is as 2 times as it is in forest park insummer. As for it, the forest park has become natural air-conditioner of haerbin city.The vegetation of forest park can decrease air bacterial content, The air bacterial contentin haerbin city is 14～27times higher than The air bacterial content in forest park.Vegetation of forest Botanical Garden makes distinct benefits of reducing noise. Which isthe natural noise barrier. Average noise levels of Heilongjiang Forest Botanical Garden is lowerthan in urban area which is 20percent 24 percent and 18 percent separately. Average noise levelthe Forest Botanical Garden attains national 0～1 class standard.The large-scale suburb Greenland can improve urban ecological environment notably.Heilongjiang Forest Botanical Garden Greenland has higher vegetable quantity content, cleanair quality and special geographical location which located at Haerbin's wind frequency'swindward which can form local convection between city and suburb through two differentboundary layer and can regulate Haerbin's temperature, humidity and improve air quality levelin largely degree.