Study Of The Value Assessment Of City Park Ecosystem Services In Qinhuangdao

The study regarded Qinhuangdao Botanical Garden,Qinhuangdao New Century Park, Qinhuangdao People’s Park,Qinhuangdao Tanghe River Park and Qinhuangdao Forest and Sports Park as objects of the research. The essay investigated and evaluated the effectiveness of ecological, economic and social aspects. Through studying on how was ecological effect impacted by several of structures of green space could evaluate the influence and contribution of city parks in the form of currency. Meanwhile, it could help to establish an evaluation system of function of eco-service on green spaces in Qinhuangdao. The main conclusions of research were as follows:1.There were 61 kinds of tree species in these five parks, which included 26 categories 48 subcategories. 34 species of trees,22 species of shrubs,5 species of covers.The tree layer included Sophora japonica, Salix matsudana, Ginkgo biloba,Populus tomentosa. Malus × micromal. The shrub layer included Syringa oblata.Loniccra maackii, and the followed included Forsythia suspensa, Euonymus japonicus. Cercis chinensis. The covers layer included Ophiopogon bodinieri and lawn grass. In Qinhuangdao city park, the tree layer’s characteristic was high species richness, various, and the reasonable distribution; the shrub layer showed growing focus, uneven distribution, and single species.It was showed that conifer-broadleaf green spaces had the most types of trees and reasonable distribution, the broadleaf green spaces had the largest number of trees but several kinds of tree species,the coniferous green spaces were grown focus and fewer.2.It was clearly that different structures of green areas would have different influence to ecosystem. The broadleaf green spaces could bring a sound effect for increased air negative ions concentratio and decreased air temperature; the coniferous green spaces was performance good on kept dust; a good influence of increased air humidity would belong to conifer-broadleaf green spaces; moreover, after the leaf were fully unfolded,air negative ions and kept dust could be improved.3.Through screening a proper standard of evaluated the feature of green area, itcould establish a suitable value assess system from ecological, economic and social those three aspects for Qinhuangdao.4.According to variety of indexes, it was decided to use Material and CVM to measure those effectiveness. The results were, Carbon fixation and oxygen released value was 163,900,0 yuan per-year,air purification value was 136,200,0 yuan per-year,micro climate value was 110,000,000 yuan per-year, the economic benefit was620,000,000 yuan per-year, the social benefit was 110,000,000 yuan per-year.All of all, the value was 850,000,000 yuan per-year, worth up of 0.7% of GDP.at Qinhuangdao.5.In conclusion, accorded to the CVM survey and the data analysis of Qinhuangdao park, it showed that CVM investigate measurement was the best way to evaluated the impact of green area.