Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian Plateau
Vegetation net primary productivity (NPP) is an important aspect of the global carbon cycle, and its change is closely related to climate change. This study analyzed the spatial-temporal variation of the standardized precipitation evapotranspiration index (SPEI) and NPP in the Mongolian Plateau, and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/12/1587 |
| _version_ | 1797506649550749696 |
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| author | Xiaomeng Guo Siqin Tong Jinyuan Ren Hong Ying Yuhai Bao |
| author_facet | Xiaomeng Guo Siqin Tong Jinyuan Ren Hong Ying Yuhai Bao |
| author_sort | Xiaomeng Guo |
| collection | DOAJ |
| description | Vegetation net primary productivity (NPP) is an important aspect of the global carbon cycle, and its change is closely related to climate change. This study analyzed the spatial-temporal variation of the standardized precipitation evapotranspiration index (SPEI) and NPP in the Mongolian Plateau, and investigated the effect of drought on NPP. To this end, NPP was simulated using the Carnegie-Ames-Stanford Approach (CASA) model. The results showed that from 1982 to 2014, NPP exhibited an upward trend in different seasons, and a significant increasing trend in most areas in the growing season and spring. The degree of drought also showed an increasing trend in each season. Moreover, the decrease in NPP and SPEI in Mongolia was larger than that in Inner Mongolia. Vegetation showed a positive correlation with SPEI in the growing season and summer, but a negative correlation in the other seasons. Moreover, the impact of drought on vegetation in the growing season showed a lag effect, whereas the lag response was inconspicuous during the early stages of the growing season. Different vegetation NPP responded strongly to the SPEI of the current month and the previous month. |
| first_indexed | 2024-03-10T04:35:33Z |
| format | Article |
| id | doaj.art-3e85a22c64cd42b2b6aa85443941453d |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T04:35:33Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-3e85a22c64cd42b2b6aa85443941453d2023-11-23T03:45:49ZengMDPI AGAtmosphere2073-44332021-11-011212158710.3390/atmos12121587Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian PlateauXiaomeng Guo0Siqin Tong1Jinyuan Ren2Hong Ying3Yuhai Bao4College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, ChinaCollege of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, ChinaCollege of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, ChinaCollege of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, ChinaCollege of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, ChinaVegetation net primary productivity (NPP) is an important aspect of the global carbon cycle, and its change is closely related to climate change. This study analyzed the spatial-temporal variation of the standardized precipitation evapotranspiration index (SPEI) and NPP in the Mongolian Plateau, and investigated the effect of drought on NPP. To this end, NPP was simulated using the Carnegie-Ames-Stanford Approach (CASA) model. The results showed that from 1982 to 2014, NPP exhibited an upward trend in different seasons, and a significant increasing trend in most areas in the growing season and spring. The degree of drought also showed an increasing trend in each season. Moreover, the decrease in NPP and SPEI in Mongolia was larger than that in Inner Mongolia. Vegetation showed a positive correlation with SPEI in the growing season and summer, but a negative correlation in the other seasons. Moreover, the impact of drought on vegetation in the growing season showed a lag effect, whereas the lag response was inconspicuous during the early stages of the growing season. Different vegetation NPP responded strongly to the SPEI of the current month and the previous month.https://www.mdpi.com/2073-4433/12/12/1587net primary productivitydroughtresponseMongolian Plateau |
| spellingShingle | Xiaomeng Guo Siqin Tong Jinyuan Ren Hong Ying Yuhai Bao Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian Plateau Atmosphere net primary productivity drought response Mongolian Plateau |
| title | Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian Plateau |
| title_full | Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian Plateau |
| title_fullStr | Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian Plateau |
| title_full_unstemmed | Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian Plateau |
| title_short | Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian Plateau |
| title_sort | dynamics of vegetation net primary productivity and its response to drought in the mongolian plateau |
| topic | net primary productivity drought response Mongolian Plateau |
| url | https://www.mdpi.com/2073-4433/12/12/1587 |
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