Global land cover trajectories and transitions

doi:10.1038/s41598-021-92256-2

	Global land cover trajectories and transitions
	Radwan, Taher M.2,3; Blackburn, G. Alan 2; Whyatt, J. Duncan 2; Atkinson, Peter M.1,2,4
刊名	SCIENTIFIC REPORTS
	2021-06-17
卷号	11 期号:1 页码:16
ISSN号	2045-2322
DOI	10.1038/s41598-021-92256-2
通讯作者	Radwan, Taher M.(t.radwan@lancaster.ac.uk)
英文摘要	Global land cover (LC) changes threaten sustainability and yet we lack a comprehensive understanding of the gains and losses of LC types, including the magnitudes, locations and timings of transitions. We used a novel, fine-resolution and temporally consistent satellite-derived dataset covering the entire Earth annually from 1992 to 2018 to quantify LC changes across a range of scales. At global and continental scales, the observed trajectories of change for most LC types were fairly smooth and consistent in direction through time. We show these observed trajectories in the context of error margins produced by extrapolating previously published accuracy metrics associated with the LC dataset. For many LC classes the observed changes were found to be within the error margins. However, an important exception was the increase in urban land, which was consistently larger than the error margins, and for which the LC transition was unidirectional. An advantage of analysing the global, fine spatial resolution LC time-series dataset is the ability to identify where and when LC changes have taken place on the Earth. We present LC change maps and trajectories that identify locations with high dynamism, and which pose significant sustainability challenges. We focused on forest loss and urban growth at the national scale, identifying the top 10 countries with the largest percentages of forest loss and urban growth globally. Crucially, we found that most of these 'worst-case' countries have stabilized their forest losses, although urban expansion was monotonic in all cases. These findings provide crucial information to support progress towards the UN's SDGs.
资助项目	Egyptian Cultural Affairs and Missions Sector, Ministry of Higher Education and Scientific Research ; Egyptian Cultural and Educational Bureau in London ; British Council (Egypt)
WOS关键词	URBAN EXPANSION ; CLIMATE-CHANGE ; FOOD SECURITY ; NILE DELTA ; ACCURACY ; CCI ; AREA ; CLASSIFICATION ; DEFORESTATION ; CHALLENGES
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE RESEARCH
WOS记录号	WOS:000664915500040
资助机构	Egyptian Cultural Affairs and Missions Sector, Ministry of Higher Education and Scientific Research ; Egyptian Cultural and Educational Bureau in London ; British Council (Egypt)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/163817]
专题	中国科学院地理科学与资源研究所
通讯作者	Radwan, Taher M.
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England 3.Alexandria Univ, Fac Agr El Shatby, Dept Soil & Water Sci, Alexandria 21545, Egypt 4.Univ Southampton, Geog & Environm Sci, Southampton SO17 1BJ, Hants, England
推荐引用方式 GB/T 7714	Radwan, Taher M.,Blackburn, G. Alan,Whyatt, J. Duncan,et al. Global land cover trajectories and transitions[J]. SCIENTIFIC REPORTS,2021,11(1):16.
APA	Radwan, Taher M.,Blackburn, G. Alan,Whyatt, J. Duncan,&Atkinson, Peter M..(2021).Global land cover trajectories and transitions.SCIENTIFIC REPORTS,11(1),16.
MLA	Radwan, Taher M.,et al."Global land cover trajectories and transitions".SCIENTIFIC REPORTS 11.1(2021):16.