Spatiotemporal Changes in Evapotranspiration and Its Influencing Factors in the Jiziwan Region of the Yellow River from 1982 to 2018
Evapotranspiration (ET) is a critical process in the interaction between the terrestrial climate system and vegetation. In recent years, ET has undergone significant changes in the Jiziwan region of the Yellow River Basin, primarily due to the implementation of ecological restoration programs and th...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/17/2/252 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832587573701115904 |
|---|---|
| author | Wenting Liu Rong Tang Ge Zhang Jiacong Xue Baolin Xue Yuntao Wang |
| author_facet | Wenting Liu Rong Tang Ge Zhang Jiacong Xue Baolin Xue Yuntao Wang |
| author_sort | Wenting Liu |
| collection | DOAJ |
| description | Evapotranspiration (ET) is a critical process in the interaction between the terrestrial climate system and vegetation. In recent years, ET has undergone significant changes in the Jiziwan region of the Yellow River Basin, primarily due to the implementation of ecological restoration programs and the dual impacts of climate change. As a result, hydrological cycle processes have been profoundly affected, making it crucial to accurately capture trends in ET and its components, as well as to identify the key drivers of these changes. In this study, we first systematically analyzed the dynamic evolution of ET and its components in the Jiziwan of the Yellow River area between 1982 and 2018 from the perspective of land use change. To achieve accurate ET simulations, we introduced a multiple linear regression algorithm and quantitatively evaluated the specific contributions of five climate factors, including precipitation, temperature, wind speed, specific humidity, and radiation, as well as the normalized difference vegetation index (NDVI), a vegetation factor, to ET and its components. On this basis, we explored the combined influence mechanism of climate change and vegetation change on ET in detail. The results revealed that the structure of ET in the Jiziwan of the Yellow River area has changed significantly and that vegetation evapotranspiration has gradually replaced soil evaporation, occupies a dominant position, and has become the main component of ET in this area. Among the many factors affecting ET, the contribution of climate change is the most significant, with an average contribution rate of approximately 59%. Moreover, the influence of human activities on total ET and its components is also high. The factors that had the greatest impact on total ET, soil evaporation, and vegetation transpiration were precipitation, radiation, and the NDVI, respectively. In terms of spatial distribution, the eastern part of Jiziwan was more significantly affected by environmental changes, and the trends of the ET changes were more dramatic. This study not only enhances our scientific understanding of the changes in ET and their driving mechanisms in the Jiziwan area of the Yellow River but also provides a solid scientific foundation for the development of water resource management and ecological restoration strategies in the region. |
| format | Article |
| id | doaj-art-65ec28fa5ddd47ec86c139630c61fac0 |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-65ec28fa5ddd47ec86c139630c61fac02025-01-24T13:47:53ZengMDPI AGRemote Sensing2072-42922025-01-0117225210.3390/rs17020252Spatiotemporal Changes in Evapotranspiration and Its Influencing Factors in the Jiziwan Region of the Yellow River from 1982 to 2018Wenting Liu0Rong Tang1Ge Zhang2Jiacong Xue3Baolin Xue4Yuntao Wang5Innovation Research Center of Satellite Application, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaChina Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaInnovation Research Center of Satellite Application, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaInnovation Research Center of Satellite Application, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaInnovation Research Center of Satellite Application, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaInnovation Research Center of Satellite Application, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaEvapotranspiration (ET) is a critical process in the interaction between the terrestrial climate system and vegetation. In recent years, ET has undergone significant changes in the Jiziwan region of the Yellow River Basin, primarily due to the implementation of ecological restoration programs and the dual impacts of climate change. As a result, hydrological cycle processes have been profoundly affected, making it crucial to accurately capture trends in ET and its components, as well as to identify the key drivers of these changes. In this study, we first systematically analyzed the dynamic evolution of ET and its components in the Jiziwan of the Yellow River area between 1982 and 2018 from the perspective of land use change. To achieve accurate ET simulations, we introduced a multiple linear regression algorithm and quantitatively evaluated the specific contributions of five climate factors, including precipitation, temperature, wind speed, specific humidity, and radiation, as well as the normalized difference vegetation index (NDVI), a vegetation factor, to ET and its components. On this basis, we explored the combined influence mechanism of climate change and vegetation change on ET in detail. The results revealed that the structure of ET in the Jiziwan of the Yellow River area has changed significantly and that vegetation evapotranspiration has gradually replaced soil evaporation, occupies a dominant position, and has become the main component of ET in this area. Among the many factors affecting ET, the contribution of climate change is the most significant, with an average contribution rate of approximately 59%. Moreover, the influence of human activities on total ET and its components is also high. The factors that had the greatest impact on total ET, soil evaporation, and vegetation transpiration were precipitation, radiation, and the NDVI, respectively. In terms of spatial distribution, the eastern part of Jiziwan was more significantly affected by environmental changes, and the trends of the ET changes were more dramatic. This study not only enhances our scientific understanding of the changes in ET and their driving mechanisms in the Jiziwan area of the Yellow River but also provides a solid scientific foundation for the development of water resource management and ecological restoration strategies in the region.https://www.mdpi.com/2072-4292/17/2/252evapotranspirationclimate changeland use changecontribution rate |
| spellingShingle | Wenting Liu Rong Tang Ge Zhang Jiacong Xue Baolin Xue Yuntao Wang Spatiotemporal Changes in Evapotranspiration and Its Influencing Factors in the Jiziwan Region of the Yellow River from 1982 to 2018 Remote Sensing evapotranspiration climate change land use change contribution rate |
| title | Spatiotemporal Changes in Evapotranspiration and Its Influencing Factors in the Jiziwan Region of the Yellow River from 1982 to 2018 |
| title_full | Spatiotemporal Changes in Evapotranspiration and Its Influencing Factors in the Jiziwan Region of the Yellow River from 1982 to 2018 |
| title_fullStr | Spatiotemporal Changes in Evapotranspiration and Its Influencing Factors in the Jiziwan Region of the Yellow River from 1982 to 2018 |
| title_full_unstemmed | Spatiotemporal Changes in Evapotranspiration and Its Influencing Factors in the Jiziwan Region of the Yellow River from 1982 to 2018 |
| title_short | Spatiotemporal Changes in Evapotranspiration and Its Influencing Factors in the Jiziwan Region of the Yellow River from 1982 to 2018 |
| title_sort | spatiotemporal changes in evapotranspiration and its influencing factors in the jiziwan region of the yellow river from 1982 to 2018 |
| topic | evapotranspiration climate change land use change contribution rate |
| url | https://www.mdpi.com/2072-4292/17/2/252 |
| work_keys_str_mv | AT wentingliu spatiotemporalchangesinevapotranspirationanditsinfluencingfactorsinthejiziwanregionoftheyellowriverfrom1982to2018 AT rongtang spatiotemporalchangesinevapotranspirationanditsinfluencingfactorsinthejiziwanregionoftheyellowriverfrom1982to2018 AT gezhang spatiotemporalchangesinevapotranspirationanditsinfluencingfactorsinthejiziwanregionoftheyellowriverfrom1982to2018 AT jiacongxue spatiotemporalchangesinevapotranspirationanditsinfluencingfactorsinthejiziwanregionoftheyellowriverfrom1982to2018 AT baolinxue spatiotemporalchangesinevapotranspirationanditsinfluencingfactorsinthejiziwanregionoftheyellowriverfrom1982to2018 AT yuntaowang spatiotemporalchangesinevapotranspirationanditsinfluencingfactorsinthejiziwanregionoftheyellowriverfrom1982to2018 |