Performance of Multiple Drought Indices in Assessing Drought Impacts on Rice and Cassava Yields in Northeastern Thailand
文献类型：期刊论文
| 作者 | Lertdechapat, Kanokporn1,2; Liu, Xiaomang1 |
| 刊名 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
 |
| 出版日期 | 2026-02-09 |
| 卷号 | N/A |
| 关键词 | cassava crop yield rice SMI SPEI SPI SYRS Thailand |
| ISSN号 | 0899-8418 |
| DOI | 10.1002/joc.70292 |
| 产权排序 | 1 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Agriculture in northeastern Thailand is highly vulnerable to drought, posing significant risks to crop production and rural livelihoods. Despite the economic importance of rice and cassava as staple and export crops, quantitative assessments of drought impacts on their yields remain limited. To enhance understanding of provincial scale drought impacts, the spatiotemporal relationships between drought conditions and crop yields were analysed. Spearman's rank correlation was used to evaluate the relationships between the standardised yield residual series (SYRS) and drought indices across various timescales, using the standardised precipitation index (SPI), the standardised precipitation evapotranspiration index (SPEI) and the standardised soil moisture index (SMI). The results revealed that yield losses are most sensitive to drought occurring during the period primarily corresponding to the vegetative phase (July to September) for major rice and the storage root bulking stage (September to February) for cassava, varying among provinces. Furthermore, the SPI and SPEI demonstrated stronger correlations with SYRS compared to SMI for both crops, highlighting their greater effectiveness in representing agricultural drought conditions. These findings underscore the necessity of province-level drought adaptation planning that accounts for regional variations in crop sensitivity. |
| URL标识 | 查看原文 |
| WOS关键词 | AGRICULTURAL DROUGHT ; RISK-ASSESSMENT ; CROP ; CLIMATE ; PRECIPITATION |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001684156700001 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220990]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Liu, Xiaomang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lertdechapat, Kanokporn,Liu, Xiaomang. Performance of Multiple Drought Indices in Assessing Drought Impacts on Rice and Cassava Yields in Northeastern Thailand[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2026,N/A. |
| APA | Lertdechapat, Kanokporn,&Liu, Xiaomang.(2026).Performance of Multiple Drought Indices in Assessing Drought Impacts on Rice and Cassava Yields in Northeastern Thailand.INTERNATIONAL JOURNAL OF CLIMATOLOGY,N/A. |
| MLA | Lertdechapat, Kanokporn,et al."Performance of Multiple Drought Indices in Assessing Drought Impacts on Rice and Cassava Yields in Northeastern Thailand".INTERNATIONAL JOURNAL OF CLIMATOLOGY N/A(2026). |
入库方式： OAI收割
来源：地理科学与资源研究所
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