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Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China
To understand the morphological and physiological responses of leaves to changes in altitudinal gradients, we examined ten morphological and physiological characteristics in one-year-old needles of Picea schrenkiana var. tianschanica at ten points along an altitudinal gradient from 1420 to 2300 m a....
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4235120/ https://www.ncbi.nlm.nih.gov/pubmed/25530993 http://dx.doi.org/10.1155/2014/243159 |
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author | Zhang, Huiwen Ma, Jianying Sun, Wei Chen, Fahu |
author_facet | Zhang, Huiwen Ma, Jianying Sun, Wei Chen, Fahu |
author_sort | Zhang, Huiwen |
collection | PubMed |
description | To understand the morphological and physiological responses of leaves to changes in altitudinal gradients, we examined ten morphological and physiological characteristics in one-year-old needles of Picea schrenkiana var. tianschanica at ten points along an altitudinal gradient from 1420 to 2300 m a.s.l. on the northern slopes of the Tianshan Mountains in northwest China. Our results indicated that LA, SD, LPC, and LKC increased linearly with increasing elevation, whereas leaf δ (13)C, LNC, Chla + b, LDMC, LMA, and N(area) varied nonlinearly with changes in altitude. With elevation below 2100 m, LNC, N(area), and Chla + b increased, while LDMC and LMA decreased with increasing altitude. When altitude was above 2100 m, these properties showed the opposite patterns. Leaf δ (13)C was positively correlated with N(area) and LNC and negatively correlated with SD and LA, suggesting that leaf δ (13)C was indirectly controlled by physiological and morphological adjustments along altitudinal gradients. Based on the observed maximum values in LNC, N(area), Chla + b, and LA and the minimum values in LMA and LDMC at the elevation of 2100 m, suggesting higher photosynthetic capacity and greater potential for fast growth under superior optimum zone, we concluded that the best growing elevation for P. schrenkiana var. tianschanica in the Tianshan Mountains was approximately 2100 m. |
format | Online Article Text |
id | pubmed-4235120 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Hindawi Publishing Corporation |
record_format | MEDLINE/PubMed |
spelling | pubmed-42351202014-12-21 Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China Zhang, Huiwen Ma, Jianying Sun, Wei Chen, Fahu ScientificWorldJournal Research Article To understand the morphological and physiological responses of leaves to changes in altitudinal gradients, we examined ten morphological and physiological characteristics in one-year-old needles of Picea schrenkiana var. tianschanica at ten points along an altitudinal gradient from 1420 to 2300 m a.s.l. on the northern slopes of the Tianshan Mountains in northwest China. Our results indicated that LA, SD, LPC, and LKC increased linearly with increasing elevation, whereas leaf δ (13)C, LNC, Chla + b, LDMC, LMA, and N(area) varied nonlinearly with changes in altitude. With elevation below 2100 m, LNC, N(area), and Chla + b increased, while LDMC and LMA decreased with increasing altitude. When altitude was above 2100 m, these properties showed the opposite patterns. Leaf δ (13)C was positively correlated with N(area) and LNC and negatively correlated with SD and LA, suggesting that leaf δ (13)C was indirectly controlled by physiological and morphological adjustments along altitudinal gradients. Based on the observed maximum values in LNC, N(area), Chla + b, and LA and the minimum values in LMA and LDMC at the elevation of 2100 m, suggesting higher photosynthetic capacity and greater potential for fast growth under superior optimum zone, we concluded that the best growing elevation for P. schrenkiana var. tianschanica in the Tianshan Mountains was approximately 2100 m. Hindawi Publishing Corporation 2014 2014-11-04 /pmc/articles/PMC4235120/ /pubmed/25530993 http://dx.doi.org/10.1155/2014/243159 Text en Copyright © 2014 Huiwen Zhang et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Zhang, Huiwen Ma, Jianying Sun, Wei Chen, Fahu Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China |
title | Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China |
title_full | Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China |
title_fullStr | Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China |
title_full_unstemmed | Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China |
title_short | Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China |
title_sort | variations in stable carbon isotope composition and leaf traits of picea schrenkiana var. tianschanica along an altitude gradient in tianshan mountains, northwest china |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4235120/ https://www.ncbi.nlm.nih.gov/pubmed/25530993 http://dx.doi.org/10.1155/2014/243159 |
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