C:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau

Ecological stoichiometry is an effective tool for analyzing and explaining changes and connections between plants and the environment. However, the changes in ecological stoichiometry throughout the leaf-root-litter-soil continuum during different seasons in plantation ecosystems are not fully under...

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Autores principales:	Ruosha Liu, Dongmei Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Ecological stoichiometry The leaf-root-litter-soil continuum Seasonal dynamics The Loess Plateau Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/0027eb7f9ebf4a0a9a5774c8a88a16a3
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spelling	oai:doaj.org-article:0027eb7f9ebf4a0a9a5774c8a88a16a32021-12-01T04:53:18ZC:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau1470-160X10.1016/j.ecolind.2021.107772https://doaj.org/article/0027eb7f9ebf4a0a9a5774c8a88a16a32021-08-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21004374https://doaj.org/toc/1470-160XEcological stoichiometry is an effective tool for analyzing and explaining changes and connections between plants and the environment. However, the changes in ecological stoichiometry throughout the leaf-root-litter-soil continuum during different seasons in plantation ecosystems are not fully understood. In this study, the C, N and P contents of leaves, roots, litter and soil were measured in four plantations growing Larix principis-rupprechtii, Picea crassifolia, Betula platyphylla and Populus cathayana in spring, summer and autumn. The stoichiometric characteristics and seasonal dynamics along the continuum were analyzed to reveal nutrient limitations on the plantations and coupling relationships among the components. Our analysis revealed that the C and N contents and C:P and N:P ratios of leaves, the P content of litter, and the C:N ratio of roots were the highest among all components. The seasonal dynamics showed that the N and P contents of leaves and roots and the P content of soil and litter were the highest in spring on all plantations, while the C:N, C:P and N:P of leaves, the C:N and C:P of roots and soil, and the C:P and N:P of litter were the lowest in spring. In all plantations, the N contents of BP and PR in each component were higher, while the P content and C:P and N:P ratios in roots of LR in summer were lower. The N element between litter-soil-root-leaf had a strong coupling relationship, and the P element between leaf-litter-root had a strong coupling relationship. Our results demonstrated that plants and the environment in each season on the Loess Plateau were mainly coupled and regulated by the N element in litter-soil-root-leaf and by the P element in leaf-litter-root. The plants absorbed N mainly from the soil and P mainly from litter. Plantations were limited by N in spring and summer and by P in autumn; this information may help guide plantation restoration and management.Ruosha LiuDongmei WangElsevierarticleEcological stoichiometryThe leaf-root-litter-soil continuumSeasonal dynamicsThe Loess PlateauEcologyQH540-549.5ENEcological Indicators, Vol 127, Iss , Pp 107772- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ecological stoichiometry The leaf-root-litter-soil continuum Seasonal dynamics The Loess Plateau Ecology QH540-549.5
spellingShingle	Ecological stoichiometry The leaf-root-litter-soil continuum Seasonal dynamics The Loess Plateau Ecology QH540-549.5 Ruosha Liu Dongmei Wang C:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau
description	Ecological stoichiometry is an effective tool for analyzing and explaining changes and connections between plants and the environment. However, the changes in ecological stoichiometry throughout the leaf-root-litter-soil continuum during different seasons in plantation ecosystems are not fully understood. In this study, the C, N and P contents of leaves, roots, litter and soil were measured in four plantations growing Larix principis-rupprechtii, Picea crassifolia, Betula platyphylla and Populus cathayana in spring, summer and autumn. The stoichiometric characteristics and seasonal dynamics along the continuum were analyzed to reveal nutrient limitations on the plantations and coupling relationships among the components. Our analysis revealed that the C and N contents and C:P and N:P ratios of leaves, the P content of litter, and the C:N ratio of roots were the highest among all components. The seasonal dynamics showed that the N and P contents of leaves and roots and the P content of soil and litter were the highest in spring on all plantations, while the C:N, C:P and N:P of leaves, the C:N and C:P of roots and soil, and the C:P and N:P of litter were the lowest in spring. In all plantations, the N contents of BP and PR in each component were higher, while the P content and C:P and N:P ratios in roots of LR in summer were lower. The N element between litter-soil-root-leaf had a strong coupling relationship, and the P element between leaf-litter-root had a strong coupling relationship. Our results demonstrated that plants and the environment in each season on the Loess Plateau were mainly coupled and regulated by the N element in litter-soil-root-leaf and by the P element in leaf-litter-root. The plants absorbed N mainly from the soil and P mainly from litter. Plantations were limited by N in spring and summer and by P in autumn; this information may help guide plantation restoration and management.
format	article
author	Ruosha Liu Dongmei Wang
author_facet	Ruosha Liu Dongmei Wang
author_sort	Ruosha Liu
title	C:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau
title_short	C:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau
title_full	C:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau
title_fullStr	C:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau
title_full_unstemmed	C:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau
title_sort	c:n:p stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/0027eb7f9ebf4a0a9a5774c8a88a16a3
work_keys_str_mv	AT ruoshaliu cnpstoichiometriccharacteristicsandseasonaldynamicsofleafrootlittersoilinplantationsontheloessplateau AT dongmeiwang cnpstoichiometriccharacteristicsandseasonaldynamicsofleafrootlittersoilinplantationsontheloessplateau
_version_	1718405641764077568

C:N:P stoichiometric characteristics and seasonal dynamics of leaf-root-litter-soil in plantations on the loess plateau

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