Land Use Change and Carbon Emissions in China from 1990 to 2015

2018 International Conference of Green Buildings and Environmental Management

土木建筑工程;生态环境科学

Wang, Tao^1

College of Geomatics, Xi'An University of Science and Technology, Xi'an

710054, China^1

关键词: Construction land;    Different land use types;    Ecological construction;    Ecological restoration;    Economic development;    Grain for green projects;    Reclamation project;    Restoration project;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/186/4/012077/pdf
DOI  :  10.1088/1755-1315/186/4/012077

来源: IOP

【 摘 要 】

Studies of land use changes and the related carbon emission effects have great significance for our understanding of the relationship between land use patterns and carbon emissions. This study indicated that (1) the most significant characteristic of China's land use change between 1990 and 2015 was the rapid increase in construction land area, reflecting the massive economic development since the reform; (2) after 2000, affected by land remediation, ecological restoration, and land reclamation projects, degraded mining land was transformed into farmland, while villages merged into rural areas, resulting in the conversion of construction land into farmland; and (3) China's land use types are mainly characterized as carbon sinks. The change process could be divided into two periods, before and after 2000, which may be related to the implementation of ecological construction and restoration projects, such as the Grain-for-Green project. Across China, carbon sources and sinks showed spatial agglomeration, indicating the natural characteristics of different land use types.