Modeling Potential Impacts on Regional Climate Due to Land Surface Changes across Mongolia Plateau
Although desertification has greatly increased across the Mongolian Plateau during the last decades of the 20th century, recent satellite records documented increasing vegetation growth since the 21st century in some areas of the Mongolian Plateau. Compared to the study of desertification, the oppos...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/12/2947 |
| _version_ | 1797482599282638848 |
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| author | Guangshuai Li Lingxue Yu Tingxiang Liu Yue Jiao Jiaxin Yu |
| author_facet | Guangshuai Li Lingxue Yu Tingxiang Liu Yue Jiao Jiaxin Yu |
| author_sort | Guangshuai Li |
| collection | DOAJ |
| description | Although desertification has greatly increased across the Mongolian Plateau during the last decades of the 20th century, recent satellite records documented increasing vegetation growth since the 21st century in some areas of the Mongolian Plateau. Compared to the study of desertification, the opposite characteristics of land use and vegetation cover changes and their different effects on regional land–atmosphere interaction factors still lack enough attention across this vulnerable region. Using long-term time-series multi-source satellite records and regional climate model, this study investigated the climate feedback to the observed land surface changes from the 1990s to the 2010s in the Mongolia Plateau. Model simulation suggests that vegetation greening induced a local cooling effect, while the warming effect is mainly located in the vegetation degradation area. For the typical vegetation greening area in the southeast of Inner Mongolia, latent heat flux increased over 2 W/m<sup>2</sup> along with the decrease of sensible heat flux over 2 W/m<sup>2</sup>, resulting in a total evapotranspiration increase by 0.1~0.2 mm/d and soil moisture decreased by 0.01~0.03 mm/d. For the typical vegetation degradation area in the east of Mongolia and mid-east of Inner Mongolia, the latent heat flux decreased over 2 W/m<sup>2</sup> along with the increase of sensible heat flux over 2 W/m<sup>2</sup> obviously, while changes in moisture cycling were spatially more associated with variations of precipitation. It means that precipitation still plays an important role in soil moisture for most areas, and some areas would be at potential risk of drought with the asynchronous increase of evapotranspiration and precipitation. |
| first_indexed | 2024-03-09T22:35:40Z |
| format | Article |
| id | doaj.art-51b021fa390d481b8e671c021714e1a9 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T22:35:40Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-51b021fa390d481b8e671c021714e1a92023-11-23T18:49:20ZengMDPI AGRemote Sensing2072-42922022-06-011412294710.3390/rs14122947Modeling Potential Impacts on Regional Climate Due to Land Surface Changes across Mongolia PlateauGuangshuai Li0Lingxue Yu1Tingxiang Liu2Yue Jiao3Jiaxin Yu4College of Geography Science, Changchun Normal University, Changchun 130032, ChinaRemote Sensing and Geographic Information Research Center, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, ChinaCollege of Geography Science, Changchun Normal University, Changchun 130032, ChinaRemote Sensing and Geographic Information Research Center, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, ChinaCollege of Geography Science, Changchun Normal University, Changchun 130032, ChinaAlthough desertification has greatly increased across the Mongolian Plateau during the last decades of the 20th century, recent satellite records documented increasing vegetation growth since the 21st century in some areas of the Mongolian Plateau. Compared to the study of desertification, the opposite characteristics of land use and vegetation cover changes and their different effects on regional land–atmosphere interaction factors still lack enough attention across this vulnerable region. Using long-term time-series multi-source satellite records and regional climate model, this study investigated the climate feedback to the observed land surface changes from the 1990s to the 2010s in the Mongolia Plateau. Model simulation suggests that vegetation greening induced a local cooling effect, while the warming effect is mainly located in the vegetation degradation area. For the typical vegetation greening area in the southeast of Inner Mongolia, latent heat flux increased over 2 W/m<sup>2</sup> along with the decrease of sensible heat flux over 2 W/m<sup>2</sup>, resulting in a total evapotranspiration increase by 0.1~0.2 mm/d and soil moisture decreased by 0.01~0.03 mm/d. For the typical vegetation degradation area in the east of Mongolia and mid-east of Inner Mongolia, the latent heat flux decreased over 2 W/m<sup>2</sup> along with the increase of sensible heat flux over 2 W/m<sup>2</sup> obviously, while changes in moisture cycling were spatially more associated with variations of precipitation. It means that precipitation still plays an important role in soil moisture for most areas, and some areas would be at potential risk of drought with the asynchronous increase of evapotranspiration and precipitation.https://www.mdpi.com/2072-4292/14/12/2947land surface changesthermal and moisture feedbackremote sensingWeather Research and Forecasting (WRF)Mongolia Plateau |
| spellingShingle | Guangshuai Li Lingxue Yu Tingxiang Liu Yue Jiao Jiaxin Yu Modeling Potential Impacts on Regional Climate Due to Land Surface Changes across Mongolia Plateau Remote Sensing land surface changes thermal and moisture feedback remote sensing Weather Research and Forecasting (WRF) Mongolia Plateau |
| title | Modeling Potential Impacts on Regional Climate Due to Land Surface Changes across Mongolia Plateau |
| title_full | Modeling Potential Impacts on Regional Climate Due to Land Surface Changes across Mongolia Plateau |
| title_fullStr | Modeling Potential Impacts on Regional Climate Due to Land Surface Changes across Mongolia Plateau |
| title_full_unstemmed | Modeling Potential Impacts on Regional Climate Due to Land Surface Changes across Mongolia Plateau |
| title_short | Modeling Potential Impacts on Regional Climate Due to Land Surface Changes across Mongolia Plateau |
| title_sort | modeling potential impacts on regional climate due to land surface changes across mongolia plateau |
| topic | land surface changes thermal and moisture feedback remote sensing Weather Research and Forecasting (WRF) Mongolia Plateau |
| url | https://www.mdpi.com/2072-4292/14/12/2947 |
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