Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland
Climate change will increase heat and drought stress in many dryland areas, which could reduce soil nutrient availability for plants and aggravate nutrient limitation of primary productivity. Any negative impacts of climate change on foliar nutrient contents would be expected to negatively affect th...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/372895 |
| Acceso en línea: | http://hdl.handle.net/10261/372895 https://api.elsevier.com/content/abstract/scopus_id/85070785436 |
| Access Level: | acceso abierto |
| Palabra clave: | Climate aridification Drought stress Drylands Non-stomatal limitation of photosynthesis Stoichiometric constraints Warming Water use efficiency |
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Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland |
| title |
Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland |
| spellingShingle |
Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland León-Sánchez, Lupe Climate aridification Drought stress Drylands Non-stomatal limitation of photosynthesis Stoichiometric constraints Warming Water use efficiency |
| title_short |
Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland |
| title_full |
Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland |
| title_fullStr |
Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland |
| title_full_unstemmed |
Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland |
| title_sort |
Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrubland |
| dc.creator.none.fl_str_mv |
León-Sánchez, Lupe Nicolás Nicolás, Emilio Prieto Aguilar, Iván Nortes, Pedro Antonio Maestre, Fernando T. Querejeta Mercader, José Ignacio |
| author |
León-Sánchez, Lupe |
| author_facet |
León-Sánchez, Lupe Nicolás Nicolás, Emilio Prieto Aguilar, Iván Nortes, Pedro Antonio Maestre, Fernando T. Querejeta Mercader, José Ignacio |
| author_role |
author |
| author2 |
Nicolás Nicolás, Emilio Prieto Aguilar, Iván Nortes, Pedro Antonio Maestre, Fernando T. Querejeta Mercader, José Ignacio |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Ministerio de Economía y Competitividad (España) European Commission Fundación Séneca European Research Council Querejeta Mercader, José Ignacio [0000-0002-9547-0974] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Climate aridification Drought stress Drylands Non-stomatal limitation of photosynthesis Stoichiometric constraints Warming Water use efficiency |
| topic |
Climate aridification Drought stress Drylands Non-stomatal limitation of photosynthesis Stoichiometric constraints Warming Water use efficiency |
| description |
Climate change will increase heat and drought stress in many dryland areas, which could reduce soil nutrient availability for plants and aggravate nutrient limitation of primary productivity. Any negative impacts of climate change on foliar nutrient contents would be expected to negatively affect the photosynthetic capacity, water use efficiency and overall fitness of dryland vegetation. We conducted a 4-year manipulative experiment using open top chambers and rainout shelters to assess the impacts of warming (~2°C, W), rainfall reduction (~30%, RR) and their combination (W + RR) on the nutrient status and ecophysiological performance of six native shrub species of contrasting phylogeny in a semi-arid ecosystem. Leaf nutrient status and gas exchange were assessed yearly, whereas biomass production and survival were measured at the end of the study. Warming (W and W + RR) advanced shoot growth phenology and reduced foliar macro- (N, P, K) and micronutrient (Cu, Fe, Zn) concentrations (by 8%–18% and 14%–56% respectively), net photosynthetic rate (32%), above-ground biomass production (28%–39%) and survival (23%–46%). Decreased photosynthesis and growth in W and W + RR plants were primarily linked to enhanced nutritional constraints on carbon fixation. Poor leaf nutrient status in W and W + RR plants partly decoupled carbon assimilation from water flux and led to drastic reductions in water use efficiency (WUEi; ~41%) across species. The RR treatment moderately decreased foliar macro- and micronutrients (6%–17%, except for Zn) and biomass production (22%). The interactive impacts of warming and rainfall reduction (W + RR treatment) on plant performance were generally smaller than expected from additive single-factor effects. Synthesis. Large decreases in plant nutrient pool size and productivity combined with increased mortality during hotter droughts will reduce vegetation cover and nutrient retention capacity, thereby disrupting biogeochemical processes and accelerating dryland degradation with impending climate change. Increased macro- and micronutrient co-limitation of photosynthesis with forecasted climate change conditions may offset any gains in WUEi and productivity derived from anthropogenic CO2 elevation, thereby increasing dryland vegetation vulnerability to drought stress in a warmer and drier climate. The generalized reduction in leaf nutrient contents with warming compromises plant nutritional quality for herbivores, with potential cascading negative effects across trophic levels |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020 2024 2024 |
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info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Postprint info:eu-repo/semantics/acceptedVersion |
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article |
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acceptedVersion |
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http://hdl.handle.net/10261/372895 https://api.elsevier.com/content/abstract/scopus_id/85070785436 |
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http://hdl.handle.net/10261/372895 https://api.elsevier.com/content/abstract/scopus_id/85070785436 |
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Inglés |
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Inglés |
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info:eu-repo/semantics/openAccess |
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openAccess |
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John Wiley & Sons |
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John Wiley & Sons |
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Altered leaf elemental composition with climate change is linked to reductions in photosynthesis, growth and survival in a semi-arid shrublandLeón-Sánchez, LupeNicolás Nicolás, EmilioPrieto Aguilar, IvánNortes, Pedro AntonioMaestre, Fernando T.Querejeta Mercader, José IgnacioClimate aridificationDrought stressDrylandsNon-stomatal limitation of photosynthesisStoichiometric constraintsWarmingWater use efficiencyClimate change will increase heat and drought stress in many dryland areas, which could reduce soil nutrient availability for plants and aggravate nutrient limitation of primary productivity. Any negative impacts of climate change on foliar nutrient contents would be expected to negatively affect the photosynthetic capacity, water use efficiency and overall fitness of dryland vegetation. We conducted a 4-year manipulative experiment using open top chambers and rainout shelters to assess the impacts of warming (~2°C, W), rainfall reduction (~30%, RR) and their combination (W + RR) on the nutrient status and ecophysiological performance of six native shrub species of contrasting phylogeny in a semi-arid ecosystem. Leaf nutrient status and gas exchange were assessed yearly, whereas biomass production and survival were measured at the end of the study. Warming (W and W + RR) advanced shoot growth phenology and reduced foliar macro- (N, P, K) and micronutrient (Cu, Fe, Zn) concentrations (by 8%–18% and 14%–56% respectively), net photosynthetic rate (32%), above-ground biomass production (28%–39%) and survival (23%–46%). Decreased photosynthesis and growth in W and W + RR plants were primarily linked to enhanced nutritional constraints on carbon fixation. Poor leaf nutrient status in W and W + RR plants partly decoupled carbon assimilation from water flux and led to drastic reductions in water use efficiency (WUEi; ~41%) across species. The RR treatment moderately decreased foliar macro- and micronutrients (6%–17%, except for Zn) and biomass production (22%). The interactive impacts of warming and rainfall reduction (W + RR treatment) on plant performance were generally smaller than expected from additive single-factor effects. Synthesis. Large decreases in plant nutrient pool size and productivity combined with increased mortality during hotter droughts will reduce vegetation cover and nutrient retention capacity, thereby disrupting biogeochemical processes and accelerating dryland degradation with impending climate change. Increased macro- and micronutrient co-limitation of photosynthesis with forecasted climate change conditions may offset any gains in WUEi and productivity derived from anthropogenic CO2 elevation, thereby increasing dryland vegetation vulnerability to drought stress in a warmer and drier climate. The generalized reduction in leaf nutrient contents with warming compromises plant nutritional quality for herbivores, with potential cascading negative effects across trophic levelsThis study was supported by the Spanish Ministerio de Economía y Competitividad (projects CGL2010-21064, CGL2013-48753-R and CGL2013-44661-R co-funded by European Union FEDER funds), Fundación Séneca (19477/PI/14) and the European Research Council (ERC Grant agreements 242658 [BIOCOM] and 647038 [BIODESERT]). L.L.-S. and I.P. acknowledge support from the JAE-CSIC and Juan de la Cierva Programs (FPDI-2013-16221) respectivelyPeer reviewedJohn Wiley & SonsMinisterio de Economía y Competitividad (España)European CommissionFundación SénecaEuropean Research CouncilQuerejeta Mercader, José Ignacio [0000-0002-9547-0974]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/372895https://api.elsevier.com/content/abstract/scopus_id/85070785436reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MICINN//CGL2010-21064info:eu-repo/grantAgreement/MINECO//CGL2013-48753-Rinfo:eu-repo/grantAgreement/MINECO//CGL2013-44661-Rinfo:eu-repo/grantAgreement/MINECO//FPDI-2013-16221Journal of Ecologyhttps://doi.org/10.1111/1365-2745.13259Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3728952026-05-22T06:33:51Z |
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15,811543 |