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	A comparative analysis of changes in the phasing of temperature and satellite-derived greenness at northern latitudes
	Ma T.; Pei T.
	2013
关键词	land surface temperature plant phenology NDVI climate changes northern latitudes climate-change surface-temperature vegetation index carbon balance time-series respiration responses ecosystem forests pattern
英文摘要	Plant growth at northern latitudes is highly responsive to the climatic changes that have occurred over recent decades. However, the sensitivity of the phasing of the seasonal cycle of terrestrial ecosystems to a changing environment remains less widely understood. We present an investigation and comparative study of large-scale changes in seasonal cycling of both land surface temperature and plant growth. Our results have shown trends indicating a marked increased towards overall plant productivity by similar to 3% from 1982 to 2005, reduced trends in seasonal variation at low-mid latitudes by similar to 2%, increased trends in seasonal variations at mid-high latitudes by similar to 7%, and an earlier phase in northern terrestrial ecosystems (similar to 1.1 days) in parallel with changes in the phasing of surface temperatures at northern latitudes over the 24 years in this study. These shifts in annual cycles of terrestrial vegetation appear to have a distinct geographical zonality and are dependent upon latitudinal changes in climatic variables. More conspicuous changes in overall vegetation productivity and the seasonal phase of ecosystems have been observed in Eurasia compared to North America, largely because of a more rapid rise in temperature. Our results state that changing climate boosts plant growth at northern latitudes, but also alters the phase and seasonal variations of the annual cycle of terrestrial ecosystems.
出处	Journal of Geographical Sciences
卷	23
期	1
页	57-66
收录类别	SCI
语种	英语
ISSN号	1009-637X
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/30347]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Ma T.,Pei T.. A comparative analysis of changes in the phasing of temperature and satellite-derived greenness at northern latitudes. 2013.

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