干旱区生态环境知识资源中心(Arid): Interacting effects of temperature and precipitation on climatic sensitivity of spring vegetation green-up in arid mountains of China

Arid

DOI	10.1016/j.agrformet.2019.02.008
	Interacting effects of temperature and precipitation on climatic sensitivity of spring vegetation green-up in arid mountains of China
	Du, Jun 1,2; He, Zhibin 1,2; Piatek, Kathryn B.3; Chen, Longfei 1,2; Lin, Peifei 1,2; Zhu, Xi 1,2
通讯作者	He, Zhibin
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2019
卷号	269 页码:71-77
英文摘要	Vegetation spring phenology in arid mountain regions is undergoing profound changes as a result of recent climate anomalies. While shifts in the timing of growth onset have been widely attributed to temperature and precipitation, interacting effects of these two climate variables on phenology have not been explored. To better understand whether an interaction between temperature and precipitation may be present, and how it may affect phenology, we first determined the influence of preseason temperature and precipitation on the starting date of vegetation growing season (SOS), and then investigated the spatial pattern of climatic sensitivity of SOS and its relation to preseason temperature/precipitation. We used satellite-derived estimates of SOS for the Qilian Mountains (QLMs) in northwestern China. Our results revealed a significant interaction between temperature and precipitation, contributing up to 30% of total variability in predicted ecosystem-level SOS. This interacting effect was likely achieved through the influence on climatic sensitivity of SOS; we found a close relationship between temperature sensitivity and preseason cumulative precipitation, and a significant association between precipitation sensitivity and preseason temperatures. Spatially, SOS was more sensitive to variability in preseason temperature in wetter than in dryer areas; likewise, a spatial increase in thermal accumulation often corresponded to an enhancement in precipitation sensitivity of SOS. These findings highlight the importance of interacting effects of climatic variables in model projections of future spring phenology, and indicate that unexpected shifts in vegetation phenology in response to climatic extremes may occur under the influence of strong interactions of climatic factors.
英文关键词	Spring phenology Temperature sensitivity Precipitation sensitivity Interacting effects Arid mountain ecosystems
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000463120900007
WOS关键词	PHENOLOGICAL RESPONSE ; ECOLOGICAL RESPONSES ; SATELLITE ; REGIONS ; TRENDS ; FOREST ; PLANTS ; DATES ; FEEDBACKS ; DYNAMICS
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/213948
作者单位	1.Chinese Ecosyst Res Network, Linze Inland River Basin Res Stn, Beijing, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Gansu, Peoples R China; 3.West Virginia Univ, Div Forestry, Morgantown, WV 26506 USA
推荐引用方式 GB/T 7714	Du, Jun,He, Zhibin,Piatek, Kathryn B.,et al. Interacting effects of temperature and precipitation on climatic sensitivity of spring vegetation green-up in arid mountains of China[J],2019,269:71-77.
APA	Du, Jun,He, Zhibin,Piatek, Kathryn B.,Chen, Longfei,Lin, Peifei,&Zhu, Xi.(2019).Interacting effects of temperature and precipitation on climatic sensitivity of spring vegetation green-up in arid mountains of China.AGRICULTURAL AND FOREST METEOROLOGY,269,71-77.
MLA	Du, Jun,et al."Interacting effects of temperature and precipitation on climatic sensitivity of spring vegetation green-up in arid mountains of China".AGRICULTURAL AND FOREST METEOROLOGY 269(2019):71-77.