Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/s41586-018-0411-9 |
Global land change from 1982 to 2016 | |
Song, Xiao-Peng1; Hansen, Matthew C.1; Stehman, Stephen V.2; Potapov, Peter V.1; Tyukavina, Alexandra1; Vermote, Eric F.3; Townshend, John R.1 | |
通讯作者 | Song, Xiao-Peng |
来源期刊 | NATURE |
ISSN | 0028-0836 |
EISSN | 1476-4687 |
出版年 | 2018 |
卷号 | 560期号:7720页码:639-+ |
英文摘要 | Land change is a cause and consequence of global environmental change(1,2). Changes in land use and land cover considerably alter the Earth’s energy balance and biogeochemical cycles, which contributes to climate change and-in turn-affects land surface properties and the provision of ecosystem services(1-4). However, quantification of global land change is lacking. Here we analyse 35 years’ worth of satellite data and provide a comprehensive record of global land-change dynamics during the period 1982-2016. We show that-contrary to the prevailing view that forest area has declined globally(5)-tree cover has increased by 2.24 million km(2) (+7.1% relative to the 1982 level). This overall net gain is the result of a net loss in the tropics being outweighed by a net gain in the extratropics. Global bare ground cover has decreased by 1.16 million km(2) (-3.1%), most notably in agricultural regions in Asia. Of all land changes, 60% are associated with direct human activities and 40% with indirect drivers such as climate change. Land-use change exhibits regional dominance, including tropical deforestation and agricultural expansion, temperate reforestation or afforestation, cropland intensification and urbanization. Consistently across all climate domains, montane systems have gained tree cover and many arid and semi-arid ecosystems have lost vegetation cover. The mapped land changes and the driver attributions reflect a human-dominated Earth system. The dataset we developed may be used to improve the modelling of land-use changes, biogeochemical cycles and vegetation-climate interactions to advance our understanding of global environmental change(1-4,6). |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000443218600049 |
WOS关键词 | COVER ; SURFACE ; GROWTH |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/211781 |
作者单位 | 1.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA; 2.SUNY Syracuse, Coll Environm Sci & Forestry, Syracuse, NY 13210 USA; 3.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA |
推荐引用方式 GB/T 7714 | Song, Xiao-Peng,Hansen, Matthew C.,Stehman, Stephen V.,et al. Global land change from 1982 to 2016[J],2018,560(7720):639-+. |
APA | Song, Xiao-Peng.,Hansen, Matthew C..,Stehman, Stephen V..,Potapov, Peter V..,Tyukavina, Alexandra.,...&Townshend, John R..(2018).Global land change from 1982 to 2016.NATURE,560(7720),639-+. |
MLA | Song, Xiao-Peng,et al."Global land change from 1982 to 2016".NATURE 560.7720(2018):639-+. |
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