Spatial, Phenological, and Inter-Annual Variations of Gross Primary Productivity in the Arctic from 2001 to 2019
Quantifying the spatial, seasonal (phenological), and inter-annual variations of gross primary productivity (GPP) in the Arctic is critical for comprehending the terrestrial carbon cycle and its feedback to climate warming in this region. Here, we evaluated the accuracy of the MOD17A2H GPP product u...
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ftdoajarticles:oai:doaj.org/article:1c03c56971864fd4a57950b105635a9b 2023-05-15T14:36:27+02:00 Spatial, Phenological, and Inter-Annual Variations of Gross Primary Productivity in the Arctic from 2001 to 2019 Dujuan Ma Xiaodan Wu Xuanlong Ma Jingping Wang Xingwen Lin Cuicui Mu 2021-07-01T00:00:00Z https://doi.org/10.3390/rs13152875 https://doaj.org/article/1c03c56971864fd4a57950b105635a9b EN eng MDPI AG https://www.mdpi.com/2072-4292/13/15/2875 https://doaj.org/toc/2072-4292 doi:10.3390/rs13152875 2072-4292 https://doaj.org/article/1c03c56971864fd4a57950b105635a9b Remote Sensing, Vol 13, Iss 2875, p 2875 (2021) GPP carbon cycle arctic phenology photosynthesis Science Q article 2021 ftdoajarticles https://doi.org/10.3390/rs13152875 2022-12-31T15:16:29Z Quantifying the spatial, seasonal (phenological), and inter-annual variations of gross primary productivity (GPP) in the Arctic is critical for comprehending the terrestrial carbon cycle and its feedback to climate warming in this region. Here, we evaluated the accuracy of the MOD17A2H GPP product using the FLUXNET 2015 dataset in the Arctic, then explored the spatial patterns, seasonal variations, and interannual trends of GPP, and investigated the dependence of the spatiotemporal variations in GPP on land cover types, latitude, and elevation from 2001 to 2019. The results showed that MOD17A2H was consistent with in situ measurements (R = 0.8, RMSE = 1.26 g C m −2 d −1 ). The functional phenology was also captured by the MOD17A2H product (R = 0.62, RMSE = 9 days) in the Arctic. The spatial variation of the seasonal magnitude of GPP and its interannual trends is partly related to land cover types, peaking in forests and lowest in grasslands. The interannual trend of GPP decreased as the latitude and elevation increased, except for the latitude between 62°~66° N and elevation below 700 m. Our study not only revealed the variation of GPP in the Arctic but also helped to understand the carbon cycle over this region. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Remote Sensing 13 15 2875 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
GPP carbon cycle arctic phenology photosynthesis Science Q |
spellingShingle |
GPP carbon cycle arctic phenology photosynthesis Science Q Dujuan Ma Xiaodan Wu Xuanlong Ma Jingping Wang Xingwen Lin Cuicui Mu Spatial, Phenological, and Inter-Annual Variations of Gross Primary Productivity in the Arctic from 2001 to 2019 |
topic_facet |
GPP carbon cycle arctic phenology photosynthesis Science Q |
description |
Quantifying the spatial, seasonal (phenological), and inter-annual variations of gross primary productivity (GPP) in the Arctic is critical for comprehending the terrestrial carbon cycle and its feedback to climate warming in this region. Here, we evaluated the accuracy of the MOD17A2H GPP product using the FLUXNET 2015 dataset in the Arctic, then explored the spatial patterns, seasonal variations, and interannual trends of GPP, and investigated the dependence of the spatiotemporal variations in GPP on land cover types, latitude, and elevation from 2001 to 2019. The results showed that MOD17A2H was consistent with in situ measurements (R = 0.8, RMSE = 1.26 g C m −2 d −1 ). The functional phenology was also captured by the MOD17A2H product (R = 0.62, RMSE = 9 days) in the Arctic. The spatial variation of the seasonal magnitude of GPP and its interannual trends is partly related to land cover types, peaking in forests and lowest in grasslands. The interannual trend of GPP decreased as the latitude and elevation increased, except for the latitude between 62°~66° N and elevation below 700 m. Our study not only revealed the variation of GPP in the Arctic but also helped to understand the carbon cycle over this region. |
format |
Article in Journal/Newspaper |
author |
Dujuan Ma Xiaodan Wu Xuanlong Ma Jingping Wang Xingwen Lin Cuicui Mu |
author_facet |
Dujuan Ma Xiaodan Wu Xuanlong Ma Jingping Wang Xingwen Lin Cuicui Mu |
author_sort |
Dujuan Ma |
title |
Spatial, Phenological, and Inter-Annual Variations of Gross Primary Productivity in the Arctic from 2001 to 2019 |
title_short |
Spatial, Phenological, and Inter-Annual Variations of Gross Primary Productivity in the Arctic from 2001 to 2019 |
title_full |
Spatial, Phenological, and Inter-Annual Variations of Gross Primary Productivity in the Arctic from 2001 to 2019 |
title_fullStr |
Spatial, Phenological, and Inter-Annual Variations of Gross Primary Productivity in the Arctic from 2001 to 2019 |
title_full_unstemmed |
Spatial, Phenological, and Inter-Annual Variations of Gross Primary Productivity in the Arctic from 2001 to 2019 |
title_sort |
spatial, phenological, and inter-annual variations of gross primary productivity in the arctic from 2001 to 2019 |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13152875 https://doaj.org/article/1c03c56971864fd4a57950b105635a9b |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Remote Sensing, Vol 13, Iss 2875, p 2875 (2021) |
op_relation |
https://www.mdpi.com/2072-4292/13/15/2875 https://doaj.org/toc/2072-4292 doi:10.3390/rs13152875 2072-4292 https://doaj.org/article/1c03c56971864fd4a57950b105635a9b |
op_doi |
https://doi.org/10.3390/rs13152875 |
container_title |
Remote Sensing |
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13 |
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15 |
container_start_page |
2875 |
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1766309061104500736 |