气候变化领域集成服务门户(CCPortal): Leaf life span as a simple predictor of evergreen forest zonation in China

CCPortal

DOI	10.1111/j.1365-2699.2009.02170.x
	Leaf life span as a simple predictor of evergreen forest zonation in China
	Zhang, Lin; Luo, Tianxiang; Zhu, Huazhong; Daly, Christopher; Deng, Kunmei
通讯作者	Luo, TX (通讯作者)
发表日期	2010
ISSN	0305-0270
EISSN	1365-2699
起始页码	27
结束页码	36
卷号	37 期号:1
英文摘要	Aim Our aim was to investigate how the average life span of canopy leaves might be used to predict the geographical distribution of natural forests at large geographical scales, and to explore the link between leaf characteristics and ecosystem functioning. We examine whether there is a general relationship between canopy mean leaf life span and climate (i.e. temperature and precipitation) that can be used to predict evergreen forest zonation in China. Location Forest areas in China. Methods During July and August of 2002-2004, we conducted a latitudinal forest transect spanning about 30 degrees of latitude in eastern China. The canopy mean leaf life span was calculated to include all tree species (groups) in each forest plot through weighted averages scaled up from branch-level measurements. Data from our previous work conducted in the Tibetan Alpine Vegetation Transects (TAVT) and from other investigators were compiled to supplement our results. Based on regression equations developed on the pooled data, and using gridded temperature and precipitation datasets, we simulated the distribution of canopy mean leaf life span for forests in China. The predicted leaf life span zonation was compared with a map of Chinese forest vegetation divisions published in 1980. Results Canopy mean leaf life span across 10 evergreen forest plots in eastern China showed a decreasing trend as mean annual temperature increased, following a common logistic pattern consistent with the data from the TAVT and other investigators. In pooled data for 40 evergreen forest plots across tropical and boreal regions, canopy mean leaf life span generally showed a negative relationship with mean annual temperature (r2 = 0.72, P < 0.001), and a positive correlation with mean annual precipitation where mean annual temperature was > 8 degrees C (r2 = 0.45, P < 0.01). The climate-based simulations of leaf life span zonation compared well with the previously published boundaries of forest vegetation divisions in eastern China. Main conclusions Our results reveal that mean leaf life span in evergreen forests follows a common logistic pattern associated with mean annual temperature and precipitation, which can in turn be used to predict evergreen forest zonation in eastern China.
关键词	NET PRIMARY PRODUCTIVITY METROSIDEROS-POLYMORPHA TRAIT RELATIONSHIPS HIGH-LATITUDES CARBON GAIN AREA INDEX LONGEVITY VEGETATION LEAVES TREES
英文关键词	China; elevation; evergreen trees; latitudinal transect; leaf life span; precipitation; temperature; vegetation division
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
WOS类目	Ecology ; Geography, Physical
WOS记录号	WOS:000272885400004
来源期刊	JOURNAL OF BIOGEOGRAPHY
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/257767
推荐引用方式 GB/T 7714	Zhang, Lin,Luo, Tianxiang,Zhu, Huazhong,et al. Leaf life span as a simple predictor of evergreen forest zonation in China[J]. 中国科学院青藏高原研究所,2010,37(1).
APA	Zhang, Lin,Luo, Tianxiang,Zhu, Huazhong,Daly, Christopher,&Deng, Kunmei.(2010).Leaf life span as a simple predictor of evergreen forest zonation in China.JOURNAL OF BIOGEOGRAPHY,37(1).
MLA	Zhang, Lin,et al."Leaf life span as a simple predictor of evergreen forest zonation in China".JOURNAL OF BIOGEOGRAPHY 37.1(2010).