Carbon savings resulting from the cooling effect of green areas: a case study in Beijing.
Carbon savings resulting from the cooling effect of green areas: a case study in Beijing.
复制标题
DOI：
10.1016/j.envpol.2011.02.035
复制
发表时间：
2011-08
影响因子：
8.9
通讯作者：
Wenqi Lin;Tinghai Wu;Chengguo Zhang;Ting Yu
中科院分区：
文献类型：
--
作者：
Wenqi Lin;Tinghai Wu;Chengguo Zhang;Ting Yu
Green areas cool the climate of a city, reduce the energy consumption caused by the urban heat island (UHI) effect, and bring along carbon savings. However, the calculation of carbon savings due to the cooling effect of green areas is still not well understood. We have used a Landsat Enhanced Thematic Mapper Plus (ETM+) image of Beijing, to identify the cooled areas, compute the possible energy used to maintain the temperature differences between cooled areas and their surrounding heated areas, and calculate the carbon savings owing to the avoidance of energy use. Results show that a total amount of 14315.37 tons carbon savings was achieved in the study area and the amount was related to the biomass, the size and the shape of green areas. These results demonstrate the importance of carbon savings resulting from green areas' cooling effect.
