The carbon fixation and oxygen release benefits of urban parks´ vegetation in Shenyang by adopting GIS with RS

Urban parks provide numerous social, environmental, and economic services of measurable value to a city. To better understand the importance of the urban parks, by using Quickbird satellite image (QB) also adopting Geographic Information System (GIS), we employ the methods of Image Interpretation, Site Survey, Photosynthetic Experiment and Forestation Costs Method, assessment the quantities and monetary benefits of Vegetations in Urban Parks. The results show that the vegetations of the studied Parks in Shenyang were estimated to reduce atmospheric CO₂ by 197847 t annually, and this benefit is valued at 51618.4 thousand Yuan in total; meanwhile, the vegetations release O₂ by 147149.3 t annually, so this benefit is valued at 51933.4 thousand Yuan in all. Therefore, the total monetary benefit of vegetations in urban parks through fixing carbon and releasing oxygen is 103551.8 thousand Yuan.