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| DOI | 10.1080/02626667.2024.2331790 |
| Developing a model to assess the impact of farm dams and irrigation for data-scarce catchments | |
| 发表日期 | 2024 |
| ISSN | 0262-6667 |
| EISSN | 2150-3435 |
| 起始页码 | 69 |
| 结束页码 | 5 |
| 卷号 | 69期号:5 |
| 英文摘要 | Productive agricultural supply chains require the support of functional ecosystems, but intense agricultural practices change local hydrological systems (e.g. river diversion). In this study, the impact of farm dams was assessed for the Verlorenvlei catchment, a sensitive ecosystem currently under a state of hydrological change in South Africa. We developed a new module for the Jena Adaptable Modelling System (JAMS)/J2000 rainfall-runoff model to assess the streamflow impact from the points of abstraction, losses during storage and irrigation. The model achieved a satisfactory streamflow calibration with efficiencies Nash Sutcliffe Efficiency (NSE, logNSE) of 0.52 and 0.51. The irrigated area reduced simulated streamflow by 12 to 19%. The results from the study agree with remote sensed evapotranspiration, measured lake surface water levels and streamflow, but uncertainty remains in the total simulated am evaporation. While many catchments lack the data required for a detailed irrigation impact assessment, this approach considers total water use, dam storage to area relationships and general farming practices. |
| 英文关键词 | Irrigation; rainfall-runoff modelling; JAMS/J2000; hydrological change; South Africa |
| 语种 | 英语 |
| WOS研究方向 | Water Resources |
| WOS类目 | Water Resources |
| WOS记录号 | WOS:001203844700001 |
| 来源期刊 | HYDROLOGICAL SCIENCES JOURNAL
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/293413 |
| 作者单位 | Stellenbosch University; Friedrich Schiller University of Jena; Universidad Costa Rica; International Atomic Energy Agency |
| 推荐引用方式 GB/T 7714 | . Developing a model to assess the impact of farm dams and irrigation for data-scarce catchments[J],2024,69(5). |
| APA | (2024).Developing a model to assess the impact of farm dams and irrigation for data-scarce catchments.HYDROLOGICAL SCIENCES JOURNAL,69(5). |
| MLA | "Developing a model to assess the impact of farm dams and irrigation for data-scarce catchments".HYDROLOGICAL SCIENCES JOURNAL 69.5(2024). |
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