Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China
Net primary productivity (NPP) is a vital ecological index that reflects the ecological function and carbon sequestration of marsh ecosystem. Inner Mongolia has a large area of marshes, which play a crucial role in the East Asian carbon cycle. Under the influence of climate change, the NPP of Inner...
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Frontiers Media S.A.
2023-06-01
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| Series: | Frontiers in Ecology and Evolution |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fevo.2023.1138965/full |
| _version_ | 1827917976903352320 |
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| author | Yanji Wang Yanji Wang Jiaqi Zhang Jiaqi Zhang Xiangjin Shen Rong Ma Yiwen Liu Yiwen Liu Liyuan Wu Liyuan Wu Shouzheng Tong Ming Jiang Xianguo Lu |
| author_facet | Yanji Wang Yanji Wang Jiaqi Zhang Jiaqi Zhang Xiangjin Shen Rong Ma Yiwen Liu Yiwen Liu Liyuan Wu Liyuan Wu Shouzheng Tong Ming Jiang Xianguo Lu |
| author_sort | Yanji Wang |
| collection | DOAJ |
| description | Net primary productivity (NPP) is a vital ecological index that reflects the ecological function and carbon sequestration of marsh ecosystem. Inner Mongolia has a large area of marshes, which play a crucial role in the East Asian carbon cycle. Under the influence of climate change, the NPP of Inner Mongolian marsh has changed significantly in the past few decades, but the spatiotemporal variation in marsh vegetation NPP and how climate change affects marsh NPP remain unclear. This study explores, for the first time, the spatiotemporal variation of marsh NPP and its response to climatic change in Inner Mongolia based on the MODIS-NPP and climate datasets. We find that the long-term average annual NPP of marsh is 339.85 g⋅C/m2 and the marsh NPP shows a significantly increasing trend (4.44 g⋅C/m2/a; p < 0.01) over Inner Mongolia during 2000–2020. Spatially, the most prominent increase trend of NPP is mainly distributed in the northeast of the region (Greater Khingan Mountains). The partial correlation results show that increasing autumn and summer precipitation can increase the NPP of marsh vegetation over Inner Mongolia. Regarding the temperature effects, we observe a strong asymmetric effect of maximum (Tmax) and minimum (Tmin) temperature on annual NPP. A high spring Tmax can markedly increase marsh NPP in Inner Mongolia, whereas a high Tmin can significantly reduce it. In contrast to spring temperature effects on NPP, a high summer Tmax can decrease NPP, whereas a high Tmin can increase it. Our results suggest different effects of seasonal climate conditions on marsh vegetation productivity and highlight the influences of day-time and night-time temperatures. This should be considered in simulating and predicting marsh carbon sequestration in global arid and semi-arid regions. |
| first_indexed | 2024-03-13T03:37:13Z |
| format | Article |
| id | doaj.art-301dedd2596c41fa8f0baa7dc1c6746a |
| institution | Directory Open Access Journal |
| issn | 2296-701X |
| language | English |
| last_indexed | 2024-03-13T03:37:13Z |
| publishDate | 2023-06-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-301dedd2596c41fa8f0baa7dc1c6746a2023-06-23T16:03:06ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2023-06-011110.3389/fevo.2023.11389651138965Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, ChinaYanji Wang0Yanji Wang1Jiaqi Zhang2Jiaqi Zhang3Xiangjin Shen4Rong Ma5Yiwen Liu6Yiwen Liu7Liyuan Wu8Liyuan Wu9Shouzheng Tong10Ming Jiang11Xianguo Lu12Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaNet primary productivity (NPP) is a vital ecological index that reflects the ecological function and carbon sequestration of marsh ecosystem. Inner Mongolia has a large area of marshes, which play a crucial role in the East Asian carbon cycle. Under the influence of climate change, the NPP of Inner Mongolian marsh has changed significantly in the past few decades, but the spatiotemporal variation in marsh vegetation NPP and how climate change affects marsh NPP remain unclear. This study explores, for the first time, the spatiotemporal variation of marsh NPP and its response to climatic change in Inner Mongolia based on the MODIS-NPP and climate datasets. We find that the long-term average annual NPP of marsh is 339.85 g⋅C/m2 and the marsh NPP shows a significantly increasing trend (4.44 g⋅C/m2/a; p < 0.01) over Inner Mongolia during 2000–2020. Spatially, the most prominent increase trend of NPP is mainly distributed in the northeast of the region (Greater Khingan Mountains). The partial correlation results show that increasing autumn and summer precipitation can increase the NPP of marsh vegetation over Inner Mongolia. Regarding the temperature effects, we observe a strong asymmetric effect of maximum (Tmax) and minimum (Tmin) temperature on annual NPP. A high spring Tmax can markedly increase marsh NPP in Inner Mongolia, whereas a high Tmin can significantly reduce it. In contrast to spring temperature effects on NPP, a high summer Tmax can decrease NPP, whereas a high Tmin can increase it. Our results suggest different effects of seasonal climate conditions on marsh vegetation productivity and highlight the influences of day-time and night-time temperatures. This should be considered in simulating and predicting marsh carbon sequestration in global arid and semi-arid regions.https://www.frontiersin.org/articles/10.3389/fevo.2023.1138965/fullmarshnet primary productivityclimate changevegetationInner Mongolia |
| spellingShingle | Yanji Wang Yanji Wang Jiaqi Zhang Jiaqi Zhang Xiangjin Shen Rong Ma Yiwen Liu Yiwen Liu Liyuan Wu Liyuan Wu Shouzheng Tong Ming Jiang Xianguo Lu Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China Frontiers in Ecology and Evolution marsh net primary productivity climate change vegetation Inner Mongolia |
| title | Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China |
| title_full | Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China |
| title_fullStr | Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China |
| title_full_unstemmed | Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China |
| title_short | Spatiotemporal variation of marsh vegetation productivity and climatic effects in Inner Mongolia, China |
| title_sort | spatiotemporal variation of marsh vegetation productivity and climatic effects in inner mongolia china |
| topic | marsh net primary productivity climate change vegetation Inner Mongolia |
| url | https://www.frontiersin.org/articles/10.3389/fevo.2023.1138965/full |
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