The Environment Influence Research Of Recreation Development In Songshan Nature Reserve

In this paper, the aerial remote sensing technology, sample unit investigation method and pair sample unit investigation method are used. On the base of investigating and analyzing changes of ecological environmental factors since the recreation development in Songshan nature reserve, such as vegetations, soils and water, the paper studied recreation development effects on natural ecological environment, and put forward strategies and measures on environmental control and management. The major conclusions are as follows.Using the two aerial remote sensing images of 1980 and 2001, the vegetation types of conifer, broadleaf hardwood, frutex, etc. were abstracted. The statistical result shows that the recreation facilities have tight relationship with vegetation area. The establishment of the facilities increased non-vegetation area, and the nudity area increased 21.1%, while the conifer and mixed wood of conifer and hardwood decreased 6.2% and 2.5% respectively. The vegetation type area in the regions of altitude 800m below and 800-1500m changed greatly, the changing rate were 25.1% and 65.4% respectively. The vegetation which in the both sides of pavement and travel road were influenced badly, some go-with-people plants appeared, such as Plantago depressa, Digitaria adscenders,Setaria viridis, etc.. The invasion and expansion of go-with-people plants changed the origin vegetation's constitution and structure, threatened the origin ecological balance.The water content, PH value and unit weight of soils are heavily affected by the activities the travelers go for sightseeing beyond the limited roads. Tourist trample caused the water content reduced, PH value increased and unit weight was higher than contrast area. Though recreation development caused some influence to water, the influence extent is within the purifying ability of natural environment.The recreation development changed the amount and distribution of vegetation, and the tourist activity changed the category, diversity and coverage of vegetation, and moreover, caused soil physical contamination in the both sides of travel road.According to the environmental influence caused by recreation development,some pertinent strategies and measures were put forward in this paper, such as making proper environment capability, building tourists evacuating road, increasing the amount of garbage bin along the travel road, and etc..