Evaluation of a crop water stress index for detecting water stress in winter wheat in the North China Plain
文献类型：SCI/SSCI论文
| 作者 | Luo Y. |
| 发表日期 | 2004 |
| 关键词 | winter wheat CWSI canopy temperature North China Plain water stress canopy temperature base-lines irrigation |
| 英文摘要 | Canopy temperature measured with infrared thermometers or other remote infrared sensors is an important tool for detecting crop water stress. The crop water stress index (CWSI) is the most often used index which is based on canopy temperature to detect crop water stress. This study evaluates the application of three different forms of CWSI for winter wheat water stress monitoring in the North China Plain (NCP): the Idso empirical model, the Jackson theoretical model, and the new Alves model, which replaces the radiometric surface temperature with a surface "wet bulb" temperature, thereby avoiding the evaluation of the surface resistance of the crop. The results show that the CWSI based on Jackson's definition and Alves' definition are better than the empirical CWSI for monitoring winter wheat water stress in NCP Both definitions are useful tools to evaluate winter wheat water stress in NCP, but the CWSI based on Alves' definition is more practical for monitoring winter wheat water stress in NCP, mainly due to not having to estimate the crop surface resistance, while the CWSI based on Jackson's definition is more reasonable for quantifying winter wheat water stress in NCP. (C) 2003 Elsevier B.V. All rights reserved. |
| 出处 | Agricultural Water Management |
| 卷 | 64 |
| 期 | 1 |
| 页 | 29-40 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0378-3774 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22489]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Luo Y.. Evaluation of a crop water stress index for detecting water stress in winter wheat in the North China Plain. 2004. |
入库方式： OAI收割
来源：地理科学与资源研究所
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