Spatial and Temporal Variation of Cropland at the Global Level from 1992 to 2015
文献类型：期刊论文
| 作者 | Tan Minghong1 ; Li Yuanyuan2
|
| 刊名 | Journal of Resources and Ecology
 |
| 出版日期 | 2019 |
| 卷号 | 10期号:3页码:235 |
| 关键词 | 全球耕地 耕地转化 时空变化 经济发展水平 |
| ISSN号 | 1674-764X |
| 英文摘要 | Correlated increases in population and demand for food over recent decades have caused remarkable changes in cropland area globally.Utilizing the latest data product provided by the European Space Agency (ESA),this paper analyzes annual trends and spatiotemporal variations in cropland area and discusses cropland conversion,losses,and increases globally between 1992 and 2015 at a 300 m resolution.The results show that the global area of cropland increased rapidly between 1992 and 2004,more slowly between 2004 and 2012,and began to decrease gradually since 2012.First,an increasing trend in cropland area has been maintained solely in Africa;all other regions are characterized by decreasing trends in later periods despite different transition points and change rates.A reduction in cropland area frequently emerged earlier in high-income countries.Second,increase rates in cropland area have largely decreased in recent years while the overall rate of loss has remained almost the same.Hotspot areas of global cropland increases are mainly concentrated around the edge of the Amazon forest,Eurasian Steppe,and Sahara Desert.These hotspot areas of global cropland loss shifted from Europe to Asia while built-up areas have expanded at the expense of cropland. |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/152383]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 1.Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences 2.Chinese Research Academy of Environmental Sciences |
| 推荐引用方式 GB/T 7714 | Tan Minghong,Li Yuanyuan. Spatial and Temporal Variation of Cropland at the Global Level from 1992 to 2015[J]. Journal of Resources and Ecology,2019,10(3):235. |
| APA | Tan Minghong,&Li Yuanyuan.(2019).Spatial and Temporal Variation of Cropland at the Global Level from 1992 to 2015.Journal of Resources and Ecology,10(3),235. |
| MLA | Tan Minghong,et al."Spatial and Temporal Variation of Cropland at the Global Level from 1992 to 2015".Journal of Resources and Ecology 10.3(2019):235. |
入库方式： OAI收割
来源：地理科学与资源研究所
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