Carbon versus nitrogen release from root and leaf litter is modulated by litter position and plant functional type

doi:10.1111/1365-2745.14026

	Carbon versus nitrogen release from root and leaf litter is modulated by litter position and plant functional type
	Erdenebileg, Enkhmaa 1,2; Wang, Congwen 1; Yu, Wanying 3; Ye, Xuehua ; Pan, Xu 4; Huang, Zhenying; Liu, Guofang ; Cornelissen, Johannes H. C.
	2023
发表期刊	JOURNAL OF ECOLOGY
ISSN	0022-0477
卷号	111 期号:1 页码:198-213
摘要	Litters of leaves and roots of different qualities occur naturally above- and below-ground, respectively, where they decompose in contrasting abiotic and biotic environments. Therefore, ecosystem carbon (C) and nitrogen (N) dynamics can be strongly affected by the combination of litter position and quality. However, it is poorly understood how C versus N turnover of litters depend on the interplay among plant functional type (PFT), organs, traits and litter position. In a semi-arid inland dune, soil surface and buried leaf litters and buried fine roots of 25 species across three PFTs (herbs, legume shrubs and nonlegume shrubs) were incubated for 3, 6, 9, 12, 18 and 24 months to investigate litter decomposition and C and N dynamics. Morphological and chemical (nutrient and NMR carbon) traits of initial litters of leaves and fine roots were determined. The litter decomposition rates (k values) of surface leaves and buried fine roots did not differ, but buried fine roots and buried leaf litter decomposed faster than surface leaf litter. Ratios of k values of surface leaves to buried leaves decreased with leaf C:N ratio. Herbs and legume shrubs decomposed faster than nonlegume shrubs for buried fine roots, but not for leaves. At given C loss, buried fine roots had higher N loss than leaf litters; legume shrubs with relatively higher N or lower C:N ratio had higher N loss than nonlegume shrubs. Stronger positive relationships between C and N losses were shown in leaves and legume shrubs than in fine roots and nonlegume shrubs respectively. Synthesis. The generality of faster N release of legume litters at given C release highlights the importance of legumes in N cycling in semi-arid ecosystems where N is the limiting factor. The dynamics and coordination of C versus N release as a function of litter quality are modulated by litter position and PFT. These findings have important implications for the development of process-based models on C and N cycles in the context of on-going global change potentially altering the functional composition of plant communities and the relative quantities and qualities of above-ground versus below-ground litter.
关键词	dryland leaf and fine root legume litter decomposition litter position litter quality plant functional type plant-soil (below-ground) interactions
学科领域	Plant Sciences ; Ecology
DOI	10.1111/1365-2745.14026
收录类别	SCI
语种	英语
WOS关键词	C-13 NMR-SPECTROSCOPY ; DECOMPOSITION RATES ; TERRESTRIAL ECOSYSTEMS ; PHOSPHORUS DYNAMICS ; SUBSTRATE QUALITY ; MASS-LOSS ; SOIL ; GROWTH ; CLIMATE ; TRAITS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000882717100001
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 Program of China [2018YFE0182800] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA23080302]
作者邮箱	zhenying@ibcas.ac.cn ; liugf@ibcas.ac.cn
作品OA属性	Bronze
引用统计	被引频次：5[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/2S10CLM1/29085
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.Mongolian Acad Sci, Bot Garden & Res Inst, Ulaanbaatar, Mongolia, Peoples R China 4.Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Jilin, Jilin, Peoples R China 5.Chinese Acad Forestry, Inst Wetland Res, Beijing, Peoples R China 6.Cornelissen, Johannes H. C.] Vrije Univ, Syst Ecol, A LIFE, Amsterdam, Netherlands
推荐引用方式 GB/T 7714	Erdenebileg, Enkhmaa,Wang, Congwen,Yu, Wanying,et al. Carbon versus nitrogen release from root and leaf litter is modulated by litter position and plant functional type[J]. JOURNAL OF ECOLOGY,2023,111(1):198-213.
APA	Erdenebileg, Enkhmaa.,Wang, Congwen.,Yu, Wanying.,Ye, Xuehua.,Pan, Xu.,...&Cornelissen, Johannes H. C..(2023).Carbon versus nitrogen release from root and leaf litter is modulated by litter position and plant functional type.JOURNAL OF ECOLOGY,111(1),198-213.
MLA	Erdenebileg, Enkhmaa,et al."Carbon versus nitrogen release from root and leaf litter is modulated by litter position and plant functional type".JOURNAL OF ECOLOGY 111.1(2023):198-213.

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