Climate Change Data Portal
| DOI | https://doi.org/10.1594/PANGAEA.899848 |
| Recent global cropland water consumption constrained by observations | |
| Chen; Yongzhe | |
| 发布日期 | 2019-04-01 |
| 数据集类型 | dataset |
| 英文关键词 | Cropland evapotranspiration ; Irrigation water use |
| 英文简介 | Under current global warming and accelerated population growth scenarios, cropland irrigation water consumption has become a central issue limiting the sustainability of coupled human‐natural systems. This study proposes a new estimate of recent global cropland water consumption constrained by observations and provides attributions for its recent trend. By incorporating observations, including extracted cropland leaf area index (LAI) and irrigation threshold data, this study provides improved estimates of recent global cropland evapotranspiration and transpiration as well as irrigation water consumption and withdrawal. The global annual consumption and withdrawal of irrigation water are estimated to be approximately 874 km3 and 1867 km3 (in 2005), respectively. From 2000~2014, a rapid increase in cropland irrigation was detected, especially in water‐deficient areas (i.e., hyper‐arid, arid and semi‐arid regions). Climate change, which mainly consists of rising temperature and reduced moisture conditions, is usually distinguished as the major driving factor. Human‐induced increases in crop canopy cover have also contributed to more irrigation in hyper‐arid and arid regions. This study also provides suggestions for water‐savings‐targeted cropland management in water‐deficient areas based on the transpiration ratio (i.e., ratio of transpiration to evapotranspiration). |
| 语种 | 英语 |
| 国家 | 国际 |
| 学科大类 | 气候变化 |
| 学科子类 | 气候变化 |
| 文献类型 | 数据集 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/215889 |
| 推荐引用方式 GB/T 7714 | Chen,Yongzhe. Recent global cropland water consumption constrained by observations.2019-04-01.https://doi.org/10.1594/PANGAEA.899848. |
| 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 |
| [Chen]的文章 |
| [Yongzhe]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Chen]的文章 |
| [Yongzhe]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Chen]的文章 |
| [Yongzhe]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。
