Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia
Frozen ground may regulate the phenological shifts of dry and cold grasslands at the southern edge of the Eurasian cryosphere. In this study, an investigation based on the MODIS Collection 5 phenology product and climatic data collected from 2001 to 2009 reveals the diverse responses of grassland ph...
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ftdoajarticles:oai:doaj.org/article:2556013966a640bbbc2ce82c91e01c46 2023-05-15T17:57:10+02:00 Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia Zhigang Sun Qinxue Wang Qingan Xiao Ochirbat Batkhishig Masataka Watanabe 2014-12-01T00:00:00Z https://doi.org/10.3390/rs70100360 https://doaj.org/article/2556013966a640bbbc2ce82c91e01c46 EN eng MDPI AG http://www.mdpi.com/2072-4292/7/1/360 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs70100360 https://doaj.org/article/2556013966a640bbbc2ce82c91e01c46 Remote Sensing, Vol 7, Iss 1, Pp 360-377 (2014) air temperature precipitation spring phenology autumn phenology grassland frozen ground permafrost Science Q article 2014 ftdoajarticles https://doi.org/10.3390/rs70100360 2022-12-31T12:58:17Z Frozen ground may regulate the phenological shifts of dry and cold grasslands at the southern edge of the Eurasian cryosphere. In this study, an investigation based on the MODIS Collection 5 phenology product and climatic data collected from 2001 to 2009 reveals the diverse responses of grassland phenology to interannual climate variability over various frozen ground regions in Mongolia. Compared with middle and southern typical steppe and desert steppe, the spring (start of season; SOS) and autumn (end of season; EOS) phenological events of northern forest steppe with lower air temperature tend to be earlier and later, respectively. Both the SOS and EOS are less sensitive to climate variability in permafrost regions than in other regions, whereas the SOS of typical steppe is more sensitive to both air temperature and precipitation over sporadic permafrost and seasonal frozen ground regions. Over various frozen ground regions in Mongolia; the SOS is mainly dominated by the prior autumn precipitation, and frozen ground plays a vital role in storing the precipitation of the previous autumn for the subsequent grass green-up. The EOS is mainly dominated by autumn air temperature. These findings could help to improve phenological models of grasslands in extremely dry and cold regions. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Remote Sensing 7 1 360 377 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
air temperature precipitation spring phenology autumn phenology grassland frozen ground permafrost Science Q |
spellingShingle |
air temperature precipitation spring phenology autumn phenology grassland frozen ground permafrost Science Q Zhigang Sun Qinxue Wang Qingan Xiao Ochirbat Batkhishig Masataka Watanabe Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia |
topic_facet |
air temperature precipitation spring phenology autumn phenology grassland frozen ground permafrost Science Q |
description |
Frozen ground may regulate the phenological shifts of dry and cold grasslands at the southern edge of the Eurasian cryosphere. In this study, an investigation based on the MODIS Collection 5 phenology product and climatic data collected from 2001 to 2009 reveals the diverse responses of grassland phenology to interannual climate variability over various frozen ground regions in Mongolia. Compared with middle and southern typical steppe and desert steppe, the spring (start of season; SOS) and autumn (end of season; EOS) phenological events of northern forest steppe with lower air temperature tend to be earlier and later, respectively. Both the SOS and EOS are less sensitive to climate variability in permafrost regions than in other regions, whereas the SOS of typical steppe is more sensitive to both air temperature and precipitation over sporadic permafrost and seasonal frozen ground regions. Over various frozen ground regions in Mongolia; the SOS is mainly dominated by the prior autumn precipitation, and frozen ground plays a vital role in storing the precipitation of the previous autumn for the subsequent grass green-up. The EOS is mainly dominated by autumn air temperature. These findings could help to improve phenological models of grasslands in extremely dry and cold regions. |
format |
Article in Journal/Newspaper |
author |
Zhigang Sun Qinxue Wang Qingan Xiao Ochirbat Batkhishig Masataka Watanabe |
author_facet |
Zhigang Sun Qinxue Wang Qingan Xiao Ochirbat Batkhishig Masataka Watanabe |
author_sort |
Zhigang Sun |
title |
Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia |
title_short |
Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia |
title_full |
Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia |
title_fullStr |
Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia |
title_full_unstemmed |
Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia |
title_sort |
diverse responses of remotely sensed grassland phenology to interannual climate variability over frozen ground regions in mongolia |
publisher |
MDPI AG |
publishDate |
2014 |
url |
https://doi.org/10.3390/rs70100360 https://doaj.org/article/2556013966a640bbbc2ce82c91e01c46 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Remote Sensing, Vol 7, Iss 1, Pp 360-377 (2014) |
op_relation |
http://www.mdpi.com/2072-4292/7/1/360 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs70100360 https://doaj.org/article/2556013966a640bbbc2ce82c91e01c46 |
op_doi |
https://doi.org/10.3390/rs70100360 |
container_title |
Remote Sensing |
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7 |
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container_start_page |
360 |
op_container_end_page |
377 |
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1766165549820149760 |