气候变化领域集成服务门户(CCPortal): A new estimation of carbon emissions from land use and land cover change in China over the past 300 years

CCPortal

DOI	10.1016/j.scitotenv.2022.160963
	A new estimation of carbon emissions from land use and land cover change in China over the past 300 years
	Yang, Fan; He, Fanneng; Li, Shicheng; Li, Meijiao; Wu, Pengfei
发表日期	2023
ISSN	0048-9697
EISSN	1879-1026
卷号	863
英文摘要	Scientific estimation of carbon emissions induced by historical land use and land cover change (LUCC) can improve the accuracy of terrestrial ecosystem carbon budget estimates and deepen understanding of the future carbon-sink poten-tial of terrestrial ecosystems. The present study, using historical-document-based data for provincial cropland, forest, and grassland area in China, and experimental-data-based information for provincial vegetation and soil organic car-bon density, re-estimates China's LUCC-induced carbon emissions for 1700-1980 using a bookkeeping model in which we updated tabulated functions for carbon losses and gains. The past 300 years have witnessed a dramatic LUCC in China. The cropland area has increased by 67.11 million ha, while the forest and grassland areas have decreased by 127.96 million ha and 16.72 million ha, respectively. Accordingly, the net carbon emissions for 1700-1980 are 6.17-12.35 Pg C, with 8.55 Pg C in the moderate scenario. Among the contributing factors, deforestation was the larg-est carbon source, accounting for over 90 % of the total carbon emissions. According to our estimates, over 70 % of carbon emissions were caused by harvesting wood, while <30 % were from converting forest and grassland to crop-land. Spatially, for the whole period, carbon emissions in southwestern China (Chuan-Yu, Yunnan, and Guangxi), northeastern China (Liaoning, Jilin, and Heilongjiang), and parts of northwestern China (Gan-Ning, Qinghai, and Xinjiang) were as high as 6.03 Pg C, accounting for 70 % of the total carbon emissions. Extending previous studies, we updated the historical LUCC data, carbon density data, and tabulated functions for carbon losses and gains. The es-timation results objectively reveal the historical spatiotemporal changes in LUCC-induced emissions.
英文关键词	Land use and land cover change; Carbon budget; Carbon emission; Terrestrial ecosystem; Bookkeeping model
语种	英语
WOS研究方向	Environmental Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000906533100001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280752
作者单位	Henan University; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; China University of Geosciences; Shanxi University Finance & Economics
推荐引用方式 GB/T 7714	Yang, Fan,He, Fanneng,Li, Shicheng,et al. A new estimation of carbon emissions from land use and land cover change in China over the past 300 years[J],2023,863.
APA	Yang, Fan,He, Fanneng,Li, Shicheng,Li, Meijiao,&Wu, Pengfei.(2023).A new estimation of carbon emissions from land use and land cover change in China over the past 300 years.SCIENCE OF THE TOTAL ENVIRONMENT,863.
MLA	Yang, Fan,et al."A new estimation of carbon emissions from land use and land cover change in China over the past 300 years".SCIENCE OF THE TOTAL ENVIRONMENT 863(2023).