From canopy complementarity to asymmetric competition: The negative relationship between structural diversity and productivity during succession

doi:10.1111/1365-2745.13813

	From canopy complementarity to asymmetric competition: The negative relationship between structural diversity and productivity during succession
	Yi, Xiaoxia 1; Wang, Ningning ; Ren, Haibao ; Yu, Jianping 2; Hu, Tianyu ; Su, Yanjun ; Mi, Xiangcheng ; Guo, Qinghua3 ; Ma, Keping1
	2022
发表期刊	JOURNAL OF ECOLOGY
ISSN	0022-0477
卷号	110 期号:2 页码:457-465
摘要	Positive relationships between structural diversity and forest productivity have been documented in controlled experiments and early secondary forests, however, negative relationships have also been observed in late successional forests. The mechanisms causing observed relationships between structural diversity and productivity are not well-established, but complementarity among crowns and asymmetric competition have been suggested. We used LiDAR and repeated census data to examine the relationship between canopy structural diversity and productivity in nine 1-ha subtropical forest plots along a disturbance gradient in southeastern China. We quantified the relative importance of community composition, species diversity, canopy structural diversity, leaf area index (LAI) and disturbance regime on productivity using piecewise structural equation modelling. We also tested how vertical leaf area distribution affected productivity. Contrary to many prior observations, we found a negative relationship between canopy structural diversity and forest productivity. The negative effect may stem from asymmetric competition between overstorey and understorey leaves, leading to a lower leaf area efficiency (i.e. wood production per leaf area). Asymmetric competition was suggested by a negative relationship between understorey leaf area and total productivity. Changes in community composition over the disturbance gradient, but not species diversity, had a significant effect on productivity. Synthesis. Our study suggests that leaf area and canopy structural diversity have contrasting effects on productivity in this subtropical forest, and this needs to be considered when estimating rates of carbon sequestration in secondary forests. The negative effect of asymmetric competition on productivity is comparable to that of the shift in species composition over succession, highlighting the role of canopy structural diversity in shaping forest productivity.
关键词	asymmetric competition canopy structural diversity coarse woody productivity community composition disturbance regime leaf area index species diversity
学科领域	Plant Sciences ; Ecology
DOI	10.1111/1365-2745.13813
收录类别	SCI
语种	英语
WOS关键词	NET PRIMARY PRODUCTION ; AGE-RELATED DECLINE ; STAND-STRUCTURE ; TREE ; COMPLEXITY ; EUCALYPTUS ; EFFICIENCY ; PACKAGE ; GROWTH
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000723133800001
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2745
资助机构	National Key Research and Development Project of China [2016YFC0500202] ; National Natural Science Foundation of China [311770478] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA19050000]
作者邮箱	tianyuhu@ibcas.ac.cn ; mixiangcheng@ibcas.ac.cn
引用统计	被引频次：9[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/2S10CLM1/28622
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Qianjiangyuan Natl Pk, Adm Bur, Kaihua, Zhejiang, Peoples R China 4.Peking Univ, Coll Urban & Environm Sci, Inst Ecol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yi, Xiaoxia,Wang, Ningning,Ren, Haibao,et al. From canopy complementarity to asymmetric competition: The negative relationship between structural diversity and productivity during succession[J]. JOURNAL OF ECOLOGY,2022,110(2):457-465.
APA	Yi, Xiaoxia.,Wang, Ningning.,Ren, Haibao.,Yu, Jianping.,Hu, Tianyu.,...&Ma, Keping.(2022).From canopy complementarity to asymmetric competition: The negative relationship between structural diversity and productivity during succession.JOURNAL OF ECOLOGY,110(2),457-465.
MLA	Yi, Xiaoxia,et al."From canopy complementarity to asymmetric competition: The negative relationship between structural diversity and productivity during succession".JOURNAL OF ECOLOGY 110.2(2022):457-465.

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