Climate Change Data Portal
| DOI | 10.1007/s11069-020-04080-y |
| Global detection of aridification or increasing wetness in arid regions from 2001 to 2013 | |
| Kimura R. | |
| 发表日期 | 2020 |
| ISSN | 0921030X |
| 起始页码 | 2261 |
| 结束页码 | 2276 |
| 卷号 | 103期号:2 |
| 英文摘要 | Arid regions are highly vulnerable to climate change and human activity, and global warming in particular has the potential to increase the arid land area. One traditional way to evaluate the extent of climate change in dryland regions is to use the aridity index (AI), defined as the ratio of annual rainfall to annual potential evapotranspiration. However, the AI is a climatic index; it does not represent actual conditions of aridity in arid regions. In contrast, the satellite-based aridity index (SbAI), which is based on day/night land surface temperature changes, is considered to represent actual conditions of moisture availability. Arid regions during 2001–2013 were classified at global scale by comparing the SbAI with the AI, that is, within Turc space, which is based on the water balance concept. In addition, factors contributing to aridification or wetness changes detected in different global regions were examined by comparing the SbAI and AI result with the yearly maximum normalized difference vegetation index and past land use. As a result, dryland regions were newly classified into five zones. In the stable zone, land areas were classified into hyper-arid, arid, semi-arid, or dry sub-humid regions by both the SbAI and the AI. Areas in the transition zone toward dryness are moderately dry. Areas in the transition zone toward wetness include large river basins, oases, and wadis with little rainfall. In the moist zone, rainfed or irrigated farming is being successfully conducted. Many parts of the dry zone, however, are extremely dry. © 2020, Springer Nature B.V. |
| 关键词 | Aridity indexDesertificationDrylandsLand degradationRemote sensing |
| 英文关键词 | arid region; aridification; climate change; evapotranspiration; irrigation system; rainfall; rainfed agriculture; transition zone |
| 语种 | 英语 |
| 来源期刊 | Natural Hazards
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/205766 |
| 作者单位 | Arid Land Research Center, Tottori University, Tottori, 680-0001, Japan |
| 推荐引用方式 GB/T 7714 | Kimura R.. Global detection of aridification or increasing wetness in arid regions from 2001 to 2013[J],2020,103(2). |
| APA | Kimura R..(2020).Global detection of aridification or increasing wetness in arid regions from 2001 to 2013.Natural Hazards,103(2). |
| MLA | Kimura R.."Global detection of aridification or increasing wetness in arid regions from 2001 to 2013".Natural Hazards 103.2(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Kimura R.]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Kimura R.]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Kimura R.]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
