Water Accounting and Productivity Analysis to Improve Water Savings of Nile River Basin, East Africa: From Accountability to Sustainability
文献类型：期刊论文
| 作者 | Hirwa, Hubert1,12,13; Zhang, Qiuying14; Li, Fadong1,12,13; Qiao, Yunfeng1,12,13; Measho, Simon2,12,13; Muhirwa, Fabien1,3,4; Xu, Ning1,12,13; Tian, Chao12,13; Cheng, Hefa5; Chen, Gang6 |
| 刊名 | AGRONOMY-BASEL
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 12期号:4页码:28 |
| 关键词 | AquaCrop model East Africa Nile River Basin water balance water accounting water productivity water security |
| DOI | 10.3390/agronomy12040818 |
| 通讯作者 | Zhang, Qiuying(zhangcly@craes.org.cn) ; Li, Fadong(lifadong@igsnrr.ac.cn) |
| 英文摘要 | Complete water accounting (WA) and crop water productivity (CWP) analysis is crucial for evaluating water use efficiency (WUE). This study aims to evaluate the contributions of hydro-meteorological factors to the changes of WA and CWP and subsequent WUE based on the data from 2009-2020 in the Nile River Basin (NRB), East Africa (EA). The Mann-Kendall (MK) statistical test and Sen's slope estimator were applied to detect the trends of climatic factors, and the AquaCrop model was used to simulate the crop yields in response to water balance and consumption based on crop physiological, soil water, and salt budget concepts. For the years 2012 and 2019, the mean of climatic water deficit P - ETa was 71.03 km(3) and 37.03 km(3), respectively, which was expected to rise to similar to 494.57 km(3) by 2050. The results indicated that the basin water budget was unbalanced due to the coupled impact of year-to-year hot and dry conditions and increase in water abstraction, an indication of water deficit or stress. CWP and WUE increased during the study period with different changing patterns. CWP was also found to correlate to the yield of major crops (p-value > 0.05). It was concluded that climatic factors influenced the crop yield, CWP, and WUE in the study area. Thus, the improvement of CWP and WUE should rely on advanced water-saving innovations. The findings of this study could help water managers to improve water productivity by focusing on water account potentials and creating regional advantages by deploying water in combination with surplus flow from upstream to downstream consumption. |
| WOS关键词 | REMOTE-SENSING DATA ; CLIMATE-CHANGE ; RESOURCES MANAGEMENT ; CHANGE ADAPTATION ; LAKE VICTORIA ; RURAL WATER ; EVAPOTRANSPIRATION ; PRECIPITATION ; DYNAMICS ; SCARCITY |
| 资助项目 | National Natural Science Foundation of China[41761144053] ; National Natural Science Foundation of China[41561144011] ; National Natural Science Foundation of China[U1906219] ; National Natural Science Foundation of China[U1803244] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000786174800001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/174257]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Qiuying; Li, Fadong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Hamelmalo Agr Coll, Dept Land Resources & Environm, Keren 397, Eritrea 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Resources Use & Environm Remediat, Beijing 100101, Peoples R China 4.Protestant Inst Arts & Social Sci, Dept Nat Resources & Environm Management, POB 619, Huye, Rwanda 5.Peking Univ, Dept Environm Sci, Beijing 100871, Peoples R China 6.Florida A&M Univ, Coll Engn, Dept Civil & Environm Engn, Florida State Univ, Tallahassee, FL 32310 USA 7.Univ Rwanda, Coll Sci & Technol, POB 3900, Kigali, Rwanda 8.Haramaya Univ, Sch Agr, Dept Agr & Environm Sci, POB 138, Dire Dawa, Ethiopia 9.Africa Ctr Excellence Climate Smart Agr & Biodive, POB 103, Haramaya, Ethiopia 10.Kabale Univ, Fac Agr & Environm Sci, Dept Environm Sci, POB 317, Kabale, Uganda |
| 推荐引用方式 GB/T 7714 | Hirwa, Hubert,Zhang, Qiuying,Li, Fadong,et al. Water Accounting and Productivity Analysis to Improve Water Savings of Nile River Basin, East Africa: From Accountability to Sustainability[J]. AGRONOMY-BASEL,2022,12(4):28. |
| APA | Hirwa, Hubert.,Zhang, Qiuying.,Li, Fadong.,Qiao, Yunfeng.,Measho, Simon.,...&Itangishaka, Auguste Cesar.(2022).Water Accounting and Productivity Analysis to Improve Water Savings of Nile River Basin, East Africa: From Accountability to Sustainability.AGRONOMY-BASEL,12(4),28. |
| MLA | Hirwa, Hubert,et al."Water Accounting and Productivity Analysis to Improve Water Savings of Nile River Basin, East Africa: From Accountability to Sustainability".AGRONOMY-BASEL 12.4(2022):28. |
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。