Low-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau

With global climate change, for evaluating warming effect on subalpine forest distribution, the substantial effects of long-term warming on tree growth and soil nutrients need to be explored. In this study, we focused on different responses in the boundaries of trees and soils to warming. Using the...

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Autores principales:	Haifeng Song, Qingquan Han, Sheng Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	warming OTC altitude metabolism adaption sub-alpine Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/ec354f10826c48a78b40570cc6b08f6f
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spelling	oai:doaj.org-article:ec354f10826c48a78b40570cc6b08f6f2021-12-03T05:44:09ZLow-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau1664-462X10.3389/fpls.2021.766368https://doaj.org/article/ec354f10826c48a78b40570cc6b08f6f2021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpls.2021.766368/fullhttps://doaj.org/toc/1664-462XWith global climate change, for evaluating warming effect on subalpine forest distribution, the substantial effects of long-term warming on tree growth and soil nutrients need to be explored. In this study, we focused on different responses in the boundaries of trees and soils to warming. Using the open-top chamber (OTC), a 10-year artificial warming experiment was conducted to evaluate the impacts of warming on Abies faxoniana at three different altitudes. We determined metabolites and nutrient concentrations in needles of A. faxoniana and characterized the soil chemistries. Many kinds of sugars, amino acids, and organic acids showed higher contents at high altitude (3,500 m) compared with low altitude (2,600 m), which could have been due to the temperature differences. Warming significantly decreased needle sugar and amino acid concentrations at high altitude but increased them at low altitude. These results indicated contrasting physiological and metabolic responses of A. faxoniana to long-term warming at different altitudes. Furthermore, we found that OTC warming significantly increased the concentrations of soil extractable sodium, aluminum (Al), and manganese (Mn), while decreased potassium (K) and phosphorus (P) concentrations and pH values at low altitude rather than at middle (3,000 m) or high altitude. The soil carbon and nitrogen contents were increased only at the middle altitude. In A. faxoniana at low altitudes, more mineral nutrients iron, K, and P were demand, and a mass of Al, Mn, and zinc was accumulated under warming. Soil P limitation and heavy metals accumulation are disadvantageous for trees at low altitudes with warming. Therefore, compared with high altitudes, A. faxoniana growing at low boundary in alpine regions is expected to be more susceptible to warming.Haifeng SongQingquan HanSheng ZhangFrontiers Media S.A.articlewarmingOTCaltitudemetabolismadaptionsub-alpinePlant cultureSB1-1110ENFrontiers in Plant Science, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	warming OTC altitude metabolism adaption sub-alpine Plant culture SB1-1110
spellingShingle	warming OTC altitude metabolism adaption sub-alpine Plant culture SB1-1110 Haifeng Song Qingquan Han Sheng Zhang Low-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau
description	With global climate change, for evaluating warming effect on subalpine forest distribution, the substantial effects of long-term warming on tree growth and soil nutrients need to be explored. In this study, we focused on different responses in the boundaries of trees and soils to warming. Using the open-top chamber (OTC), a 10-year artificial warming experiment was conducted to evaluate the impacts of warming on Abies faxoniana at three different altitudes. We determined metabolites and nutrient concentrations in needles of A. faxoniana and characterized the soil chemistries. Many kinds of sugars, amino acids, and organic acids showed higher contents at high altitude (3,500 m) compared with low altitude (2,600 m), which could have been due to the temperature differences. Warming significantly decreased needle sugar and amino acid concentrations at high altitude but increased them at low altitude. These results indicated contrasting physiological and metabolic responses of A. faxoniana to long-term warming at different altitudes. Furthermore, we found that OTC warming significantly increased the concentrations of soil extractable sodium, aluminum (Al), and manganese (Mn), while decreased potassium (K) and phosphorus (P) concentrations and pH values at low altitude rather than at middle (3,000 m) or high altitude. The soil carbon and nitrogen contents were increased only at the middle altitude. In A. faxoniana at low altitudes, more mineral nutrients iron, K, and P were demand, and a mass of Al, Mn, and zinc was accumulated under warming. Soil P limitation and heavy metals accumulation are disadvantageous for trees at low altitudes with warming. Therefore, compared with high altitudes, A. faxoniana growing at low boundary in alpine regions is expected to be more susceptible to warming.
format	article
author	Haifeng Song Qingquan Han Sheng Zhang
author_facet	Haifeng Song Qingquan Han Sheng Zhang
author_sort	Haifeng Song
title	Low-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau
title_short	Low-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau
title_full	Low-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau
title_fullStr	Low-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau
title_full_unstemmed	Low-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau
title_sort	low-altitude boundary of abies faxoniana is more susceptible to long-term open-top chamber warming in the eastern tibetan plateau
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/ec354f10826c48a78b40570cc6b08f6f
work_keys_str_mv	AT haifengsong lowaltitudeboundaryofabiesfaxonianaismoresusceptibletolongtermopentopchamberwarmingintheeasterntibetanplateau AT qingquanhan lowaltitudeboundaryofabiesfaxonianaismoresusceptibletolongtermopentopchamberwarmingintheeasterntibetanplateau AT shengzhang lowaltitudeboundaryofabiesfaxonianaismoresusceptibletolongtermopentopchamberwarmingintheeasterntibetanplateau
_version_	1718373962668310528

Low-Altitude Boundary of Abies faxoniana Is More Susceptible to Long-Term Open-Top Chamber Warming in the Eastern Tibetan Plateau

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