| Since 1980s, the forest tourism has been rapidly developing in our country. It is a kind of living ways to experience nature. As national forest parks have been becoming the most important tourist destinations, tourism experts have paid more and more attention to the research on ecological benefits and national environmental quality of forest parks. It is necessary to scientifically assess ecological benefits and tourism suitability of national environmental quality in forest parks for developing forest tourism resources. Nowadays, studies about ecological benefits and national environmental quality have been carried out, but there are a few qualitative analyses while few quantitative ones. The thesis takes the Fuzhou National Forest Park as study object, and the ecological benefits have been quantitatively studied on field survey in July and November 2003. Based on the results, the tourism suitability of natural environment has been evaluated in Fuzhou National Forest Park. At the same time, suitable activities and regions have been determined, which will provide healthy development of Fuzhou National Forest Park with scientific foundation.By analyzing carbon-fixed and oxygen-made ability of principle woody plants in Fuzhou National Forest Park, it is concluded that the whole vegetable quantity of Fuzhou National Forest Park is 1.1 107m2, the amount of carbon-fixing gets 16,000 tons and the number oxygen-making becomes 14,000 tons. The Fuzhou National Forest Park has become real green lung of Fuzhou urban. The Greenland amount of latifoliate forest is in the majority, and the next is the forest type mixed by broadleaf and conifer. The forest type of Schima superba is principal part of the Fuzhou national park.Vegetable can increase humidity and cool down temperature of environment. As a result, the temperature in forest park is 4.7 C lower than the temperature in Fuzhou urban, and air relative humidity in forest park is 26.4 percent higher than air relative humidity in Fuzhou urban in summer. In autumn, the temperature in forest park is 1.7 C lower than the temperature in Fuzhou urban, and air relative humidity in forest park is 16.1 percent higher than air relative humidity in Fuzhou urban. The intension of illumination in urban is as 3 times as it is in forest park in summer. As for it, the forest park has become natural air-conditioner of Fuzhou city. The benefits of different vegetation communities is different in increasing humidity and cooling down temperature and reducing illumination. The benefit of increasing air humidity and decreasing temperature is obviously high in plantcommunity of arbor + shrub+ herb, evergreen latifoliate forest and mixed forest of conifer and broadleaf. The benefit of reducing illumination is high in arbor forest, the forest of arbor+shrub, arbor+shrub+grass typical vegetation communities.Air dust average content per day of Fuzhou National Forest Park is 0.035 mg/m3 in summer and 0.03 mg/m3 in autumn, which reaches to the national first-level standard. However, air dust content of Fuzhou urban only reaches to the national third-level standard. Vegetation of forest park makes distinct benefits of decreasing dust and reducing noise in forest park, which is the natural cleaning-air machine and noise barrier. The result of study shows that the plant community of arbor+shrub+grass collection model and latifoliate forest are greatly superior in decreasing dust benefit, and that mixed forest of conifer and broadleaf and the plant community of arbor+shrub+grass collection model are better in decreasing noise benefit.The vegetation of forest park can decrease air bacterial content, in which the ability of killing air bacterium of conifer and palmate is superior. Air bacterial content is lower in mic-environment made by conifer and palmate in the most part or in partsThe aero-anion level of Fuzhou forest park is high in all seasons. So air cleaning index is high. The study shows the aero-anion level is higher in arbor+shrub+grass typical forest collocation model or submargina...
|
PDF Full Text Request