The influence of light and growth stage on oxygen diffusion capacity of Acorus calamus roots CHANGE OF PHOTOSYNTHETIC RATE AND RESPONSE TO LOW WATER POTENTIAL OF EVERGREEN TREE SPECIES IN THE PROCESS OF HIBERNATION Study on the Ecological Functions of Sixty-five Garden Species in Wuhan City, China Carbon sequestration and oxygen release as well as cooling and humidification efficiency of the main greening tree species of Sha River, Chengdu Application of CITYGREEN model in air purification, carbon fixation and oxygen release by greenbelt system of Shenzhen City Forest change and its impact on the quantity of oxygen release in Heilongjiang Province during the Past Century Research progress in the eco-environmental effects of urban green spaces Evaluation of forest ecosystem carbon fixation and oxygen release services in Shaanxi Province from 1999 to 2003 Ecosystem Service Value’s Prediction of Forest Carbon Fixation,Oxygen Release and Air Purification of Wutong Mountain in Shenzhen Function of Carbon Sequestration and Oxygen Release of Rubber Plantations and Its Value Estimation