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Spatial patterns of leaf C-13 and its relationship with plant functional groups and environmental factors in China
Mingxu Li;  Changhui Peng;  Meng Wang;  Yanzheng Yang;  Kerou Zhang;  Peng Li;  Yan Yang;  Jian Ni;  Qiuan Zhu
2017
Source PublicationJournal of Geophysical Research: Biogeosciences
Volume122Issue:7Pages:1564-1575
Abstract

The leaf carbon isotope ratio (C-13) is a useful parameter for predicting a plant's water use efficiency, as an indicator for plant classification, and even in the reconstruction of paleoclimatic environments. In this study, we investigated the spatial pattern of leaf C-13 values and its relationship with plant functional groups and environmental factors throughout China. The high leaf C-13 in the database appeared in central and western China, and the averaged leaf C-13 was -27.15, with a range from -21.05 to -31.5. The order of the averaged C-13 for plant life forms from most positive to most negative was subshrubs>herbs=shrubs>trees>subtrees. Leaf C-13 is also influenced by some environmental factors, such as mean annual precipitation, relative humidity, mean annual temperature, solar hours, and altitude, although the overall influences are still relatively weak, in particular the influence of MAT and altitude. And we further found that plant functional types are dominant factors that regulate the magnitude of leaf C-13 for an individual site, whereas environmental conditions are key to understanding spatial patterns of leaf C-13 when we consider China as a whole. Ultimately, we conducted a multiple regression model of leaf C-13 with environmental factors and mapped the spatial distribution of leaf C-13 in China by using this model. However, this partial least squares model overestimated leaf C-13 for most life forms, especially for deciduous trees, evergreen shrubs, and subtrees, and thus need more improvement in the future.

Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/8066
Collection环境地球化学国家重点实验室
Affiliation1.Center for Ecological Forecasting and Global Change, College of Forestry, Northwest A&F University, Yangling, China
2.Institute of Environment Sciences, Department of Biology Sciences, University of Quebec at Montreal, Montreal, Quebec, Canada
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
4.College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
Recommended Citation
GB/T 7714
Mingxu Li;Changhui Peng;Meng Wang;Yanzheng Yang;Kerou Zhang;Peng Li;Yan Yang;Jian Ni;Qiuan Zhu. Spatial patterns of leaf C-13 and its relationship with plant functional groups and environmental factors in China[J]. Journal of Geophysical Research: Biogeosciences,2017,122(7):1564-1575.
APA Mingxu Li;Changhui Peng;Meng Wang;Yanzheng Yang;Kerou Zhang;Peng Li;Yan Yang;Jian Ni;Qiuan Zhu.(2017).Spatial patterns of leaf C-13 and its relationship with plant functional groups and environmental factors in China.Journal of Geophysical Research: Biogeosciences,122(7),1564-1575.
MLA Mingxu Li;Changhui Peng;Meng Wang;Yanzheng Yang;Kerou Zhang;Peng Li;Yan Yang;Jian Ni;Qiuan Zhu."Spatial patterns of leaf C-13 and its relationship with plant functional groups and environmental factors in China".Journal of Geophysical Research: Biogeosciences 122.7(2017):1564-1575.
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