Improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model: A case study of the Qingtu Oasis, China
Study region: Qingtu Oasis, Shiyang River Basin, Northwest China. Study focus: Improving the Ecological Water Diversion (EWD) process is crucial for promoting recovering terminal oases in arid inland basins. This research developed a Monthly Conceptual Lumped Ecohydrological Model (MCLEM) by integra...
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Elsevier
2025-02-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S221458182400507X |
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| author | Feng Huang Yiping Li Carlos G. Ochoa Jisheng Li |
| author_facet | Feng Huang Yiping Li Carlos G. Ochoa Jisheng Li |
| author_sort | Feng Huang |
| collection | DOAJ |
| description | Study region: Qingtu Oasis, Shiyang River Basin, Northwest China. Study focus: Improving the Ecological Water Diversion (EWD) process is crucial for promoting recovering terminal oases in arid inland basins. This research developed a Monthly Conceptual Lumped Ecohydrological Model (MCLEM) by integrating the surface water and groundwater balance, ecological response, and evapotranspiration equations. The MCLEM coupling with the scenario simulation effectively depicted the oasis’s intra-annual ecohydrological dynamics responding to various EWD processes under wet, regular, and dry meteorological conditions, implying for designing a rational EWD strategy achieving optimal ecological benefits regarding a larger oasis area and higher vegetation coverage. New hydrological insights for the region: Given the total volume of 30 million m3, the current EWD of 10 million m3 each month during the second half of the vegetation growing season recovered the Qingtu Oasis to an average peak oasis area of 16.90 km2 and an average peak vegetation coverage of 15.90 % under various meteorological conditions. Comparatively, the EWD of 5 million m3 each month during the entire vegetation growing season could produce an average peak oasis area of 20.17 km2 and an average peak vegetation coverage of 18.59 %. Comparing the ecological benefits resulting from different EWD scenarios suggested adjusting the EWD process from transferring water during the second half of the vegetation growing season to transferring water during the entire vegetation growing season. |
| format | Article |
| id | doaj-art-5f2887db2ec84e52bda5c4e77a2bfaa4 |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
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| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-5f2887db2ec84e52bda5c4e77a2bfaa42025-01-22T05:42:15ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102158Improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model: A case study of the Qingtu Oasis, ChinaFeng Huang0Yiping Li1Carlos G. Ochoa2Jisheng Li3College of Environment, Hohai University, Nanjing 210098, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China; College of Geography and Remote Sensing, Hohai University, Nanjing 211100, China; Corresponding author at: College of Environment, Hohai University, Nanjing 210098, ChinaCollege of Environment, Hohai University, Nanjing 210098, China; Corresponding author.College of Agricultural Sciences - Ecohydrology Lab, Oregon State University, Corvallis, OR 97331, USAWuwei Hydrological Bureau of Gansu Province, Wuwei 733000, ChinaStudy region: Qingtu Oasis, Shiyang River Basin, Northwest China. Study focus: Improving the Ecological Water Diversion (EWD) process is crucial for promoting recovering terminal oases in arid inland basins. This research developed a Monthly Conceptual Lumped Ecohydrological Model (MCLEM) by integrating the surface water and groundwater balance, ecological response, and evapotranspiration equations. The MCLEM coupling with the scenario simulation effectively depicted the oasis’s intra-annual ecohydrological dynamics responding to various EWD processes under wet, regular, and dry meteorological conditions, implying for designing a rational EWD strategy achieving optimal ecological benefits regarding a larger oasis area and higher vegetation coverage. New hydrological insights for the region: Given the total volume of 30 million m3, the current EWD of 10 million m3 each month during the second half of the vegetation growing season recovered the Qingtu Oasis to an average peak oasis area of 16.90 km2 and an average peak vegetation coverage of 15.90 % under various meteorological conditions. Comparatively, the EWD of 5 million m3 each month during the entire vegetation growing season could produce an average peak oasis area of 20.17 km2 and an average peak vegetation coverage of 18.59 %. Comparing the ecological benefits resulting from different EWD scenarios suggested adjusting the EWD process from transferring water during the second half of the vegetation growing season to transferring water during the entire vegetation growing season.http://www.sciencedirect.com/science/article/pii/S221458182400507XOasis restorationEcological water diversionEcohydrological simulationMonthly oasis dynamicsProcess optimizationShiyang River |
| spellingShingle | Feng Huang Yiping Li Carlos G. Ochoa Jisheng Li Improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model: A case study of the Qingtu Oasis, China Journal of Hydrology: Regional Studies Oasis restoration Ecological water diversion Ecohydrological simulation Monthly oasis dynamics Process optimization Shiyang River |
| title | Improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model: A case study of the Qingtu Oasis, China |
| title_full | Improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model: A case study of the Qingtu Oasis, China |
| title_fullStr | Improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model: A case study of the Qingtu Oasis, China |
| title_full_unstemmed | Improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model: A case study of the Qingtu Oasis, China |
| title_short | Improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model: A case study of the Qingtu Oasis, China |
| title_sort | improving ecological water diversion process to promote oasis restoration using a monthly conceptual lumped ecohydrological model a case study of the qingtu oasis china |
| topic | Oasis restoration Ecological water diversion Ecohydrological simulation Monthly oasis dynamics Process optimization Shiyang River |
| url | http://www.sciencedirect.com/science/article/pii/S221458182400507X |
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