Temporal and Spatial Variation Characteristics of Actual Evapotranspiration in the Yiluo River Basin Based on the Priestley–Taylor Jet Propulsion Laboratory Model
Evapotranspiration is an important part of the hydrological cycle, affecting the terrestrial hydrological process and the relationship between water resource transformation. Analyzing and mastering the temporal and spatial variations in evapotranspiration are of great significance for the rational d...
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MDPI AG
2022-09-01
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| Online Access: | https://www.mdpi.com/2076-3417/12/19/9784 |
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| author | Minhua Ling Yuanqing Yang Chenyang Xu Lili Yu Qinyuan Xia Xiaomin Guo |
| author_facet | Minhua Ling Yuanqing Yang Chenyang Xu Lili Yu Qinyuan Xia Xiaomin Guo |
| author_sort | Minhua Ling |
| collection | DOAJ |
| description | Evapotranspiration is an important part of the hydrological cycle, affecting the terrestrial hydrological process and the relationship between water resource transformation. Analyzing and mastering the temporal and spatial variations in evapotranspiration are of great significance for the rational development, utilization, and protection of water resources in the basin. Based on MODIS remote sensing data and combined with meteorological and hydrological data, the PT-JPL model was used to estimate the actual evapotranspiration of the Yiluo River Basin, and the applicability of the PT-JPL model for estimating actual evapotranspiration in the basin was analyzed. The spatial and temporal characteristics of actual evapotranspiration in the Yiluo River Basin were analyzed, and the correlation between actual evapotranspiration in the basin and influencing factors such as precipitation, temperature, and vegetation was explored. The main conclusions are as follows: the PT-JPL model has good applicability in the Yiluo River Basin; the total actual evapotranspiration in the basin showed a decreasing trend, which was consistent with the trend of precipitation, indicating that the actual evapotranspiration may be limited by water conditions in the study area. The evapotranspiration of the basin was higher in the upstream and lower in the downstream, which may be related to the better vegetation coverage in the upper basin than in the downstream. As an important indicator of vegetation change, NDVI showed a good correlation with evapotranspiration, which also verified this. In addition, the correlation between evapotranspiration and temperature was also good. |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T22:03:20Z |
| publishDate | 2022-09-01 |
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| spelling | doaj.art-3ac1a12c1ef44898804447ad366501422023-11-23T19:45:37ZengMDPI AGApplied Sciences2076-34172022-09-011219978410.3390/app12199784Temporal and Spatial Variation Characteristics of Actual Evapotranspiration in the Yiluo River Basin Based on the Priestley–Taylor Jet Propulsion Laboratory ModelMinhua Ling0Yuanqing Yang1Chenyang Xu2Lili Yu3Qinyuan Xia4Xiaomin Guo5School of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou 450001, ChinaGeneral Institute of Water Resources and Hydropower Planning and Design, Ministry of Water Resources, Beijing 100032, ChinaBureau of Hydrology and Water Resources in Henan Province, Zhengzhou 450003, ChinaSchool of Water Conservancy and Civil Engineering, Zhengzhou University, Zhengzhou 450001, ChinaEvapotranspiration is an important part of the hydrological cycle, affecting the terrestrial hydrological process and the relationship between water resource transformation. Analyzing and mastering the temporal and spatial variations in evapotranspiration are of great significance for the rational development, utilization, and protection of water resources in the basin. Based on MODIS remote sensing data and combined with meteorological and hydrological data, the PT-JPL model was used to estimate the actual evapotranspiration of the Yiluo River Basin, and the applicability of the PT-JPL model for estimating actual evapotranspiration in the basin was analyzed. The spatial and temporal characteristics of actual evapotranspiration in the Yiluo River Basin were analyzed, and the correlation between actual evapotranspiration in the basin and influencing factors such as precipitation, temperature, and vegetation was explored. The main conclusions are as follows: the PT-JPL model has good applicability in the Yiluo River Basin; the total actual evapotranspiration in the basin showed a decreasing trend, which was consistent with the trend of precipitation, indicating that the actual evapotranspiration may be limited by water conditions in the study area. The evapotranspiration of the basin was higher in the upstream and lower in the downstream, which may be related to the better vegetation coverage in the upper basin than in the downstream. As an important indicator of vegetation change, NDVI showed a good correlation with evapotranspiration, which also verified this. In addition, the correlation between evapotranspiration and temperature was also good.https://www.mdpi.com/2076-3417/12/19/9784actual evapotranspirationinfluencing factorsPT-JPL modelspatial and temporal characteristicsthe Yiluo River Basin |
| spellingShingle | Minhua Ling Yuanqing Yang Chenyang Xu Lili Yu Qinyuan Xia Xiaomin Guo Temporal and Spatial Variation Characteristics of Actual Evapotranspiration in the Yiluo River Basin Based on the Priestley–Taylor Jet Propulsion Laboratory Model Applied Sciences actual evapotranspiration influencing factors PT-JPL model spatial and temporal characteristics the Yiluo River Basin |
| title | Temporal and Spatial Variation Characteristics of Actual Evapotranspiration in the Yiluo River Basin Based on the Priestley–Taylor Jet Propulsion Laboratory Model |
| title_full | Temporal and Spatial Variation Characteristics of Actual Evapotranspiration in the Yiluo River Basin Based on the Priestley–Taylor Jet Propulsion Laboratory Model |
| title_fullStr | Temporal and Spatial Variation Characteristics of Actual Evapotranspiration in the Yiluo River Basin Based on the Priestley–Taylor Jet Propulsion Laboratory Model |
| title_full_unstemmed | Temporal and Spatial Variation Characteristics of Actual Evapotranspiration in the Yiluo River Basin Based on the Priestley–Taylor Jet Propulsion Laboratory Model |
| title_short | Temporal and Spatial Variation Characteristics of Actual Evapotranspiration in the Yiluo River Basin Based on the Priestley–Taylor Jet Propulsion Laboratory Model |
| title_sort | temporal and spatial variation characteristics of actual evapotranspiration in the yiluo river basin based on the priestley taylor jet propulsion laboratory model |
| topic | actual evapotranspiration influencing factors PT-JPL model spatial and temporal characteristics the Yiluo River Basin |
| url | https://www.mdpi.com/2076-3417/12/19/9784 |
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