Radial growth response of trees to seasonal soil humidity in a subtropical forest

doi:10.1016/j.baae.2021.02.015

	Radial growth response of trees to seasonal soil humidity in a subtropical forest
	Gheyret, Gheyur ; Zhang, Hong-Tu ; Guo, Yanpei ; Liu, Tong-Yan ; Bai, Yun-Hao ; Li, Shan 2; Schmid, Bernhard 1,3; Bruelheide, Helge 4; Ma, Keping2 ; Tang, Zhiyao 1
	2021
发表期刊	BASIC AND APPLIED ECOLOGY
ISSN	1439-1791
卷号	55 页码:74-86
摘要	Tree growth is the most important factor in determining the carbon sequestration processes of forest ecosystems. However, the growth phenology (seasonal growth pattern) and responses of tree growth to climatic variables vary considerably among different species, especially between deciduous and evergreen species. Thus, it is crucial to explore the seasonal growth patterns of different tree species in relation to climate to better understand the responses of tree physiology to climate changes, especially in mixed-species forest stands. In this study, we monitored the daily basal area increments of 220 individuals belonging to 15 common broadleaved tree species, nine deciduous and six evergreen species, in mixed-species experimental stands in subtropical China and analysed the relationships between radial stem growth and seasonal climate at a high-temporal resolution. We fitted daily increments of stem diameters with four frequently used nonlinear models and chose the best model for each species. The results showed that the evergreen trees grew faster than the deciduous trees, both annually and within the growing season. The tested nonlinear models (Korf, Weibull, logistic and Gompertz) produced good fits for the growth patterns of all species. Overall, the evergreen species began stem growth earlier and finished later during the growing season than that of the deciduous species. Within the growing season, the radial growth of trees in mixed stands containing both types of species was strongly positively correlated with humidity. In spring, increases in both temperature and moisture increased the daily relative basal area increment of all species. Maximum growth rates occurred when the soil water content reached its highest level and gradually decreased when the soil water content decreased. In summer, high temperatures combined with low amounts of precipitation led to heat-induced summer drought, to which the evergreen trees appeared to be more tolerant than the deciduous trees, which was reflected in the reduced stem growth of the latter. These results indicate the different climate-dependent seasonal growth strategies of evergreen and deciduous trees related to the trade-off described by the leaf economics spectrum, i.e., short-lived leaves with higher assimilation rates in deciduous and longer-lived leaves with a greater drought tolerance in evergreen species. (C) 2021 Gesellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved.
关键词	Subtropical China Dendrometer Growth model Evergreen and deciduous species Climate-growth relations
学科领域	Ecology
DOI	10.1016/j.baae.2021.02.015
收录类别	SCI
语种	英语
WOS关键词	FUNCTIONAL TRAITS ; QUERCUS-PETRAEA ; DECIDUOUS TREES ; LEAF PHENOLOGY ; QILIAN JUNIPER ; SHOOT GROWTH ; BALSAM FIR ; EVERGREEN ; TEMPERATURE ; PLANT
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000697003800007
出版者	ELSEVIER GMBH
Special Issue	SI
文献子类	Article
出版地	MUNICH
EISSN	1618-0089
资助机构	National Key R&D Program of China [2017YFA0605101] ; National Natural Science Foundation of China [32025025, 31988102, 31770489]
作者邮箱	zytang@urban.pku.edu.cn
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/26500
专题	植被与环境变化国家重点实验室
作者单位	1.Peking Univ, Coll Urban & Environm Sci, Inst Ecol, Beijing 100871, Peoples R China 2.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China 4.Univ Zurich, Dept Geog, Remote Sensing Labs, Winterthurerstr 190, CH-8057 Zurich, Switzerland 5.Martin Luther Univ Halle Wittenberg, Inst Biol, Geobot & Bot Garden, Halle, Germany
推荐引用方式 GB/T 7714	Gheyret, Gheyur,Zhang, Hong-Tu,Guo, Yanpei,et al. Radial growth response of trees to seasonal soil humidity in a subtropical forest[J]. BASIC AND APPLIED ECOLOGY,2021,55:74-86.
APA	Gheyret, Gheyur.,Zhang, Hong-Tu.,Guo, Yanpei.,Liu, Tong-Yan.,Bai, Yun-Hao.,...&Tang, Zhiyao.(2021).Radial growth response of trees to seasonal soil humidity in a subtropical forest.BASIC AND APPLIED ECOLOGY,55,74-86.
MLA	Gheyret, Gheyur,et al."Radial growth response of trees to seasonal soil humidity in a subtropical forest".BASIC AND APPLIED ECOLOGY 55(2021):74-86.

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