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	Prolonged limitation of tree growth due to warmer spring in semi-arid mountain forests of Tianshan, northwest China
	Wu, Xiuchen ; Liu, Hongyan ; Wang, Yufu ; Deng, Minghua
	2013
关键词	spring warming soil water limitation tree growth basal area increment (BAI) soil water content larch forest DROUGHT SEVERITY INDEX UNITED-STATES CLIMATE-CHANGE SOIL-MOISTURE CENTRAL-ASIA TEMPERATE VEGETATION RING CHRONOLOGIES NORTHERN MONGOLIA LARIX-SIBIRICA PERMAFROST
英文摘要	Based on radial tree growth measurements in nine plots of area 625 m(2) (369 trees in total) and climate data, we explored the possibly changing effects of climate on regional tree growth in the temperate continental semi-arid mountain forests in the Tianshan Mountains in northwest China during 1933-2005. Tree growth in our study region is generally limited by the soil water content of pre-and early growing season (February-July). Remarkably, moving correlation functions identified a clear temporal change in the relationship between tree growth and mean April temperature. Tree growth showed a significant (p < 0 : 05) and negative relationship to mean April temperature since approximately the beginning of the 1970s, which indicated that the semi-arid mountain forests are suffering a prolonged growth limitation in recent years accompanying spring warming. This prolonged limitation of tree growth was attributed to the effects of soil water limitation in early spring (March-April) caused by the rapid spring warming. Warming-induced prolonged drought stress contributes, to a large part, to the marked reduction of regional basal area increment (BAI) in recent years and a much slower growth rate in young trees. Our results highlight that the increasing water limitation induced by spring warming on tree growth most likely aggravated the marked reduction in tree growth. This work provides a better understanding of the effects of spring warming on tree growth in temperate continental semi-arid forests.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000321425100020&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences; Meteorology & Atmospheric Sciences; SCI(E); EI; 7; ARTICLE; 2; 8
语种	英语
出处	SCI ; EI
出版者	environmental research letters
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/322248]
专题	数学科学学院 城市与环境学院
推荐引用方式 GB/T 7714	Wu, Xiuchen,Liu, Hongyan,Wang, Yufu,et al. Prolonged limitation of tree growth due to warmer spring in semi-arid mountain forests of Tianshan, northwest China. 2013-01-01.

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