Relieving water stress by optimizing crop structure is a practicable approach in arid transboundary rivers of Central Asia
文献类型：期刊论文
| 作者 | Ruan, Hongwei3,4; Yu, Jingjie2,3,4; Wang, Ping2,3,4; Hao, Lingang2,3,4; Wang, Zhenlong |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 出版日期 | 2023 |
| 卷号 | 275页码:108055 |
| 关键词 | Water supply and requirement Crop restructuring scenario Climate change scenario Water conservation Central Asia |
| ISSN号 | 0378-3774 |
| DOI | 10.1016/j.agwat.2022.108055 |
| 文献子类 | Article |
| 英文摘要 | With the challenges of arid transboundary river water management among Central Asian countries, it is important to evaluate the water stress and propose practicable climate adaptation strategies. This study used the Syr Darya Basin (SDB) in a Central Asia data scarce region as the study area and, conducted the first quantified analysis of the spatiotemporal characteristics of water supply and requirements at the basin and irrigation district scale; identified its driving mechanisms based on systematic monitoring data concerning reservoir regulation and complex crop structure from 2000 to 2018; and a climate change scenario combined with a crop restructuring scenario was applied to evaluate water conservation effects and propose a climate adaptation strategy from 2019 to 2030. The results showed that runoff increased by 7.45 billion m3 but the water withdrawal decreased by 3.42 billion m3 after reservoir regulation in the basin during 2000-2018. Due to the unified water allocation, it was challenging to conduct and usually exceeded the plan by 0.4-8.5 %. The total crop water requirement (TCWR) mainly derived from cotton (61.5 %), winter wheat (12.1 %) and rice (13.9 %) increased by 3.15 billion m3 (+30.7 %) and the influence of crop area (380 million m3/a) was greater than that of climate (130 million m3/a). The wind speed (27.5 %) and rice area (19.2 %) also significantly contributed to the TCWR variation. The contradiction between water supply and requirement resulted in water scarcity in the basin. From 2019-2030, the water conservation effect of winter wheat (+20 %) under the restructuring scenarios reached 28.7 mm, which helped relieve water stress under the scenario of a 0.51-0.91 degrees C increase. Thus, priority planting of a winter wheat rotation and low water consuming crops is a practicable approach for coping with water scarcity and adapting to climate change in arid transboundary rivers of Centra Asia. |
| WOS关键词 | CLIMATE-CHANGE IMPACTS ; REQUIREMENTS ; RESOURCES ; HYDROLOGY ; SYSTEM ; VALLEY ; BASIN |
| WOS研究方向 | Agriculture ; Water Resources |
| WOS记录号 | WOS:000966669100001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190544]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Nat Resources Res, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 4.Anhui & Huaihe River Inst Hydraul Res, Key Lab Water Conservancy & Water Resources Anhui, Hefei 230038, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ruan, Hongwei,Yu, Jingjie,Wang, Ping,et al. Relieving water stress by optimizing crop structure is a practicable approach in arid transboundary rivers of Central Asia[J]. AGRICULTURAL WATER MANAGEMENT,2023,275:108055. |
| APA | Ruan, Hongwei,Yu, Jingjie,Wang, Ping,Hao, Lingang,&Wang, Zhenlong.(2023).Relieving water stress by optimizing crop structure is a practicable approach in arid transboundary rivers of Central Asia.AGRICULTURAL WATER MANAGEMENT,275,108055. |
| MLA | Ruan, Hongwei,et al."Relieving water stress by optimizing crop structure is a practicable approach in arid transboundary rivers of Central Asia".AGRICULTURAL WATER MANAGEMENT 275(2023):108055. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
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。