(1. College of Architecture and Urban Planning, Chongqing Jiaotong University, Chongqing 400074, China;
2. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Resources,
Chinese Academy of Sciences, Beijing 100101, China)
Abstract:The study on spatial distribution and carbon sequestration capacity of urban green space is of great significance to the evaluation of ecological service value. Taking Nanan District of Chongqing as the research area, the Landsat8 remote sensing images of 2013 and 2016 were supervised and classified, and the land use data of the two periods were obtained, and then the transfer matrix analysis of land use was carried out. Finally, the ecological benefits of urban green space in carbon sequestration were quantitatively estimated by using CITYgreen model. The results show that: (1) from 2013 to 2016, the construction land in Nanan District has increased by 1025.01 ha, while the urban green space has decreased by 333 ha as a whole; (2) the decrease of urban green space in Nanan District is mainly reflected in the conversion of forest land to construction land and cultivated land; (3) the annual carbon sequestration of urban green space in Nanan District in 2013 and 2016 are converted into ecological benefits of about 4.782 million yuan and 4.5436 million yuan. The research results reveal the spatial distribution, evolution and carbon sequestration benefits of urban green space in Nanan District, so as to provide a scientific basis for governments decision.
周伟1,2,李浩然1, 黄露1,袁増元1,谢宇灏1. 重庆市南岸区城市绿地演变及其固碳效益研究[J]. 重庆交通大学学报(自然科学版), 2020, 39(07): 121-125.
ZHOU Wei1,2 , LI Haoran1, HUANG Lu1, YUAN Yiyuan1, XIE Yuhao1. Evolution of Urban Green Space and Its Carbon Sequestration Benefit in
Nanan District of Chongqing. Journal of Chongqing Jiaotong University(Natural Science), 2020, 39(07): 121-125.
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