气候变化领域集成服务门户(CCPortal): Changes in autumn vegetation dormancy onset date and the climate controls across temperate ecosystems in China from 1982 to 2010

CCPortal

DOI	10.1111/gcb.12778
	Changes in autumn vegetation dormancy onset date and the climate controls across temperate ecosystems in China from 1982 to 2010
	Yang, Yuting; Guan, Huade; Shen, Miaogen; Liang, Wei; Jiang, Lei
通讯作者	Yang, YT (通讯作者)
发表日期	2015
ISSN	1354-1013
EISSN	1365-2486
起始页码	652
结束页码	665
卷号	21 期号:2
英文摘要	Vegetation phenology is a sensitive indicator of the dynamic response of terrestrial ecosystems to climate change. In this study, the spatiotemporal pattern of vegetation dormancy onset date (DOD) and its climate controls over temperate China were examined by analysing the satellite-derived normalized difference vegetation index and concurrent climate data from 1982 to 2010. Results show that preseason (May through October) air temperature is the primary climatic control of the DOD spatial pattern across temperate China, whereas preseason cumulative precipitation is dominantly associated with the DOD spatial pattern in relatively cold regions. Temporally, the average DOD over China's temperate ecosystems has delayed by 0.13days per year during the past three decades. However, the delay trends are not continuous throughout the 29-year period. The DOD experienced the largest delay during the 1980s, but the delay trend slowed down or even reversed during the 1990s and 2000s. Our results also show that interannual variations in DOD are most significantly related with preseason mean temperature in most ecosystems, except for the desert ecosystem for which the variations in DOD are mainly regulated by preseason cumulative precipitation. Moreover, temperature also determines the spatial pattern of temperature sensitivity of DOD, which became significantly lower as temperature increased. On the other hand, the temperature sensitivity of DOD increases with increasing precipitation, especially in relatively dry areas (e.g. temperate grassland). This finding stresses the importance of hydrological control on the response of autumn phenology to changes in temperature, which must be accounted in current temperature-driven phenological models.
关键词	GREEN-UP DATE TIBETAN PLATEAU SPRING PHENOLOGY GROWING-SEASON NORTHERN-HEMISPHERE CARBON-CYCLE NDVI DATA RESPONSES VARIABILITY MODEL
英文关键词	China; climate change; dormancy onset date; NDVI; remote sensing; temperate zone; vegetation phenology
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:000348652400014
来源期刊	GLOBAL CHANGE BIOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258578
推荐引用方式 GB/T 7714	Yang, Yuting,Guan, Huade,Shen, Miaogen,et al. Changes in autumn vegetation dormancy onset date and the climate controls across temperate ecosystems in China from 1982 to 2010[J]. 中国科学院青藏高原研究所,2015,21(2).
APA	Yang, Yuting,Guan, Huade,Shen, Miaogen,Liang, Wei,&Jiang, Lei.(2015).Changes in autumn vegetation dormancy onset date and the climate controls across temperate ecosystems in China from 1982 to 2010.GLOBAL CHANGE BIOLOGY,21(2).
MLA	Yang, Yuting,et al."Changes in autumn vegetation dormancy onset date and the climate controls across temperate ecosystems in China from 1982 to 2010".GLOBAL CHANGE BIOLOGY 21.2(2015).