Trend Changes of the Vegetation Activity in Northeastern East Asia and the Connections with Extreme Climate Indices
In the context of global warming, vegetation activity in northeastern East Asia (40–45°N, 105–130°E) (NEA) shows a significant growth trend on a multidecadal scale, but how vegetation changes on a decadal scale is unclear. In this study, we find a significant trend of vegetation greening in northeas...
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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/2072-4292/14/13/3151 |
| _version_ | 1797442118993575936 |
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| author | Zijing Guo Wei Lou Cheng Sun Bin He |
| author_facet | Zijing Guo Wei Lou Cheng Sun Bin He |
| author_sort | Zijing Guo |
| collection | DOAJ |
| description | In the context of global warming, vegetation activity in northeastern East Asia (40–45°N, 105–130°E) (NEA) shows a significant growth trend on a multidecadal scale, but how vegetation changes on a decadal scale is unclear. In this study, we find a significant trend of vegetation greening in northeastern East Asia during 1982–1998 and a slowdown in the greening trend during 1998–2014. Trend analysis of the extreme climate indices reveals that the trends of precipitation-related extreme climate indices are similar to those of vegetation change, and further correlation analysis reveals that precipitation-related extreme climate indices have a strong positive correlation with the NDVI. The results indicate that the vegetation in northeastern East Asia is more sensitive to precipitation changes, especially extreme precipitation, compared with the temperature and related extreme indices. Furthermore, the analysis of large-scale atmospheric circulation changes suggests a role of Northwest Pacific subtropical high (NPSH) in the trend changes of precipitation-related extreme indices. The strengthening of NPSH before 1998 enhances the moisture transport to the NEA, providing abundant water vapor favorable for extreme precipitation events, while after 1998, the NPSH trend is much weakened, corresponding to a decrease in the moisture transport trend. |
| first_indexed | 2024-03-09T12:37:12Z |
| format | Article |
| id | doaj.art-b9cdc514404a46d187dd6cd1308e70ed |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T12:37:12Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-b9cdc514404a46d187dd6cd1308e70ed2023-11-30T22:23:24ZengMDPI AGRemote Sensing2072-42922022-06-011413315110.3390/rs14133151Trend Changes of the Vegetation Activity in Northeastern East Asia and the Connections with Extreme Climate IndicesZijing Guo0Wei Lou1Cheng Sun2Bin He3College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaIn the context of global warming, vegetation activity in northeastern East Asia (40–45°N, 105–130°E) (NEA) shows a significant growth trend on a multidecadal scale, but how vegetation changes on a decadal scale is unclear. In this study, we find a significant trend of vegetation greening in northeastern East Asia during 1982–1998 and a slowdown in the greening trend during 1998–2014. Trend analysis of the extreme climate indices reveals that the trends of precipitation-related extreme climate indices are similar to those of vegetation change, and further correlation analysis reveals that precipitation-related extreme climate indices have a strong positive correlation with the NDVI. The results indicate that the vegetation in northeastern East Asia is more sensitive to precipitation changes, especially extreme precipitation, compared with the temperature and related extreme indices. Furthermore, the analysis of large-scale atmospheric circulation changes suggests a role of Northwest Pacific subtropical high (NPSH) in the trend changes of precipitation-related extreme indices. The strengthening of NPSH before 1998 enhances the moisture transport to the NEA, providing abundant water vapor favorable for extreme precipitation events, while after 1998, the NPSH trend is much weakened, corresponding to a decrease in the moisture transport trend.https://www.mdpi.com/2072-4292/14/13/3151northeastern East AsiaNDVIextreme eventssubtropical high |
| spellingShingle | Zijing Guo Wei Lou Cheng Sun Bin He Trend Changes of the Vegetation Activity in Northeastern East Asia and the Connections with Extreme Climate Indices Remote Sensing northeastern East Asia NDVI extreme events subtropical high |
| title | Trend Changes of the Vegetation Activity in Northeastern East Asia and the Connections with Extreme Climate Indices |
| title_full | Trend Changes of the Vegetation Activity in Northeastern East Asia and the Connections with Extreme Climate Indices |
| title_fullStr | Trend Changes of the Vegetation Activity in Northeastern East Asia and the Connections with Extreme Climate Indices |
| title_full_unstemmed | Trend Changes of the Vegetation Activity in Northeastern East Asia and the Connections with Extreme Climate Indices |
| title_short | Trend Changes of the Vegetation Activity in Northeastern East Asia and the Connections with Extreme Climate Indices |
| title_sort | trend changes of the vegetation activity in northeastern east asia and the connections with extreme climate indices |
| topic | northeastern East Asia NDVI extreme events subtropical high |
| url | https://www.mdpi.com/2072-4292/14/13/3151 |
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