Arid
DOI10.3390/rs70100360
Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia
Sun, Zhigang1; Wang, Qinxue2; Xiao, Qingan2; Batkhishig, Ochirbat3; Watanabe, Masataka4
通讯作者Wang, Qinxue
来源期刊REMOTE SENSING
EISSN2072-4292
出版年2015
卷号7期号:1页码:360-377
英文摘要

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.


英文关键词air temperature precipitation spring phenology autumn phenology grassland frozen ground permafrost
类型Article
语种英语
国家Peoples R China ; Japan ; Mongolia
收录类别SCI-E
WOS记录号WOS:000348401900018
WOS关键词SPRING PHENOLOGY ; SOIL-MOISTURE ; GREEN-UP ; MODEL ; WINTER
WOS类目Remote Sensing
WOS研究方向Remote Sensing
来源机构中国科学院地理科学与资源研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/190141
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China;
2.Natl Inst Environm Studies, Ctr Reg Environm Res, Tsukuba, Ibaraki 3058506, Japan;
3.Mongolian Acad Sci, Inst Geog, Ulaanbaatar 14192, Mongolia;
4.Chuo Univ, Res & Dev Initiat, Tokyo 1920393, Japan
推荐引用方式
GB/T 7714
Sun, Zhigang,Wang, Qinxue,Xiao, Qingan,et al. Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia[J]. 中国科学院地理科学与资源研究所,2015,7(1):360-377.
APA Sun, Zhigang,Wang, Qinxue,Xiao, Qingan,Batkhishig, Ochirbat,&Watanabe, Masataka.(2015).Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia.REMOTE SENSING,7(1),360-377.
MLA Sun, Zhigang,et al."Diverse Responses of Remotely Sensed Grassland Phenology to Interannual Climate Variability over Frozen Ground Regions in Mongolia".REMOTE SENSING 7.1(2015):360-377.
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