Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region

Assessing the influence of warming on leaf traits, carbon, and nutrient concentrations above and below ground to understand how the dominant sedge Kobresia pygmaea (C. B. Clarke) C. B. Clarke may respond and adapt to extant and future climate in the alpine meadow of the Qinghai-Tibetan Plateau. A wa...

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Published in:Plant and Soil
Main Authors: Yang, Yan, Wang, Genxu, Klanderud, Kari, Yang, Liudong
Format: Article in Journal/Newspaper
Language:English
Published: 2011
Subjects:
Online Access:http://ir.imde.ac.cn/handle/131551/5471
https://doi.org/10.1007/s11104-011-0891-y
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spelling ftchinacadscimhe:oai:ir.imde.ac.cn:131551/5471 2023-05-15T17:57:38+02:00 Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region Yang, Yan Wang, Genxu Klanderud, Kari Yang, Liudong 2011 http://ir.imde.ac.cn/handle/131551/5471 https://doi.org/10.1007/s11104-011-0891-y 英语 eng PLANT AND SOIL Yang, Yan,Wang, Genxu,Klanderud, Kari,et al. Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region[J]. PLANT AND SOIL,2011,349(1-2):377-387. http://ir.imde.ac.cn/handle/131551/5471 doi:10.1007/s11104-011-0891-y 4 Alpine Meadow Leaf Mass (Lma) Nitrogen Open Top Chamber Science & Technology Life Sciences & Biomedicine Agriculture Plant Sciences LARGE-SCALE PATTERNS PLANT COMMUNITY TEMPERATURE CARBON METAANALYSIS GENERALITY DENSITY AREA MASS Agronomy Soil Science Article 期刊论文 2011 ftchinacadscimhe https://doi.org/10.1007/s11104-011-0891-y 2022-12-19T18:18:02Z Assessing the influence of warming on leaf traits, carbon, and nutrient concentrations above and below ground to understand how the dominant sedge Kobresia pygmaea (C. B. Clarke) C. B. Clarke may respond and adapt to extant and future climate in the alpine meadow of the Qinghai-Tibetan Plateau. A warming experiment was conducted in the permafrost region of the Qinghai-Tibetan Plateau from 2008 to 2009. Two 2-year warming treatments (T1, annual warming of 2.1A degrees C; T2, annual warming of 4.4A degrees C) were used, and responses of leaf traits and above- and belowground carbon, nitrogen, and phosphorus concentrations of K. pygmaea were examined. The results show that both moderate (T1) and more extensive (T2) warming decreased leaf mass, leaf thickness, and vascular bundle size, and increased the mass-based photosynthetic rate (A(mass)) and photosynthetic nitrogen use efficiency (PNUE). A moderate warming significantly decreased leaf carbon (C), nitrogen (N), and phosphorus (P), and root C and N concentrations of K. pygmaea. These decreases were even more pronounced under the more extensive warming. The decreases in leaf N and P were significantly larger than the decrease in leaf C concentration. Root P concentration increased more under the extensive than the moderate warming. The observed increase in leaf C:N ratio in the warming treatment indicates that enhanced temperature may increase the long-term nitrogen use efficiency of K. pygmaea leaves. This again suggests that K. pygmaea might adapt well to future climate warming, and that nitrogen might be a more important factor for K. pygmaea dominated alpine meadows under future climate warming. Article in Journal/Newspaper permafrost IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences) Plant and Soil 349 1-2 377 387
institution Open Polar
collection IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
op_collection_id ftchinacadscimhe
language English
topic Alpine Meadow
Leaf Mass (Lma)
Nitrogen
Open Top Chamber
Science & Technology
Life Sciences & Biomedicine
Agriculture
Plant Sciences
LARGE-SCALE PATTERNS
PLANT COMMUNITY
TEMPERATURE
CARBON
METAANALYSIS
GENERALITY
DENSITY
AREA
MASS
Agronomy
Soil Science
spellingShingle Alpine Meadow
Leaf Mass (Lma)
Nitrogen
Open Top Chamber
Science & Technology
Life Sciences & Biomedicine
Agriculture
Plant Sciences
LARGE-SCALE PATTERNS
PLANT COMMUNITY
TEMPERATURE
CARBON
METAANALYSIS
GENERALITY
DENSITY
AREA
MASS
Agronomy
Soil Science
Yang, Yan
Wang, Genxu
Klanderud, Kari
Yang, Liudong
Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region
topic_facet Alpine Meadow
Leaf Mass (Lma)
Nitrogen
Open Top Chamber
Science & Technology
Life Sciences & Biomedicine
Agriculture
Plant Sciences
LARGE-SCALE PATTERNS
PLANT COMMUNITY
TEMPERATURE
CARBON
METAANALYSIS
GENERALITY
DENSITY
AREA
MASS
Agronomy
Soil Science
description Assessing the influence of warming on leaf traits, carbon, and nutrient concentrations above and below ground to understand how the dominant sedge Kobresia pygmaea (C. B. Clarke) C. B. Clarke may respond and adapt to extant and future climate in the alpine meadow of the Qinghai-Tibetan Plateau. A warming experiment was conducted in the permafrost region of the Qinghai-Tibetan Plateau from 2008 to 2009. Two 2-year warming treatments (T1, annual warming of 2.1A degrees C; T2, annual warming of 4.4A degrees C) were used, and responses of leaf traits and above- and belowground carbon, nitrogen, and phosphorus concentrations of K. pygmaea were examined. The results show that both moderate (T1) and more extensive (T2) warming decreased leaf mass, leaf thickness, and vascular bundle size, and increased the mass-based photosynthetic rate (A(mass)) and photosynthetic nitrogen use efficiency (PNUE). A moderate warming significantly decreased leaf carbon (C), nitrogen (N), and phosphorus (P), and root C and N concentrations of K. pygmaea. These decreases were even more pronounced under the more extensive warming. The decreases in leaf N and P were significantly larger than the decrease in leaf C concentration. Root P concentration increased more under the extensive than the moderate warming. The observed increase in leaf C:N ratio in the warming treatment indicates that enhanced temperature may increase the long-term nitrogen use efficiency of K. pygmaea leaves. This again suggests that K. pygmaea might adapt well to future climate warming, and that nitrogen might be a more important factor for K. pygmaea dominated alpine meadows under future climate warming.
format Article in Journal/Newspaper
author Yang, Yan
Wang, Genxu
Klanderud, Kari
Yang, Liudong
author_facet Yang, Yan
Wang, Genxu
Klanderud, Kari
Yang, Liudong
author_sort Yang, Yan
title Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region
title_short Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region
title_full Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region
title_fullStr Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region
title_full_unstemmed Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region
title_sort responses in leaf functional traits and resource allocation of a dominant alpine sedge (kobresia pygmaea) to climate warming in the qinghai-tibetan plateau permafrost region
publishDate 2011
url http://ir.imde.ac.cn/handle/131551/5471
https://doi.org/10.1007/s11104-011-0891-y
genre permafrost
genre_facet permafrost
op_relation PLANT AND SOIL
Yang, Yan,Wang, Genxu,Klanderud, Kari,et al. Responses in leaf functional traits and resource allocation of a dominant alpine sedge (Kobresia pygmaea) to climate warming in the Qinghai-Tibetan Plateau permafrost region[J]. PLANT AND SOIL,2011,349(1-2):377-387.
http://ir.imde.ac.cn/handle/131551/5471
doi:10.1007/s11104-011-0891-y
op_rights 4
op_doi https://doi.org/10.1007/s11104-011-0891-y
container_title Plant and Soil
container_volume 349
container_issue 1-2
container_start_page 377
op_container_end_page 387
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