Increasing water-use efficiency mediates effects of atmospheric carbon, sulfur, and nitrogen on growth variability of central European conifers

Treml, Václav; Tumajer, Jan; Jandová, Kateřina; Oulehle, Filip; Rydval, Miloš; Čada, Vojtěch; Treydte, Kerstin; Mašek, Jiří; Vondrovicová, Lenka; Lhotáková, Zuzana; Svoboda, Miroslav

doi:10.1016/j.scitotenv.2022.156483

Cited by 5 publications

(5 citation statements)

References 80 publications

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“…Our data revealed a complex interaction of rising atmospheric CO 2 concentration, climate, and acidic atmospheric deposition on iWUE, consistent with other studies 32,37,38,43,44 . Our analysis emphasizes the pivotal role of sulfur deposition in driving nonlinear trends in iWUE of central European temperate forests and provides only limited supporting evidence of the stimulation effect of nitrogen deposition on iWUE 35,36,45 .…”

Section: Discussionsupporting

confidence: 92%

“…The non-linear temporal increase of iWUE reflected the strong influence of acidic air pollution on stomatal conductance, especially in both conifers. Increases in precipitation acidity likely decreased g s 18 , as tree growth was also suppressed, leading to increased iWUE during the "acid rain" period, as has been consistently shown in areas affected by acidic air pollution worldwide 29,37,38,44,46,47 . Given the high sensitivity of Silver fir iWUE 48 and stem growth 49,50 to acidic air pollution, dendrochronological reconstructions may suffer from substantial species-dependent loss of climate sensitivity [51][52][53] even in areas far from industrial pollution sources.…”

Section: Discussionmentioning

confidence: 78%

“…Air pollution and climatic variables. To infer historical S and N depositions across our sites, we employed a statistical method based on the temporal coherence between the measured precipitation chemistry and the respective Central European emission rates of SO 2 , NO x , and NH 3 emissions 44,75 . Empirically-based interpolation, taking into account key variables such as altitude, precipitation, and geographical coordinates, enabled the representation of spatial variations in precipitation chemistry (Supplementary Data 1).…”

Section: Methodsmentioning

confidence: 99%

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Calcium availability affects the intrinsic water-use efficiency of temperate forest trees

Oulehle

Urban

Tahovská

et al. 2023

Commun Earth Environ

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Intrinsic water-use efficiency (iWUE) of trees is an important component of the Earth’s coupled carbon and water cycles. The causes and consequences of long-term changes in iWUE are, however, still poorly understood due to the complex interplay between biotic and abiotic factors. Inspired by the role calcium (Ca) plays in plant transpiration, we explore possible linkages between tree ring-derived iWUE and Ca availability in five central European forest sites that were affected by acidic air pollution. We show that increasing iWUE was directly modulated by acid air pollution in conjunction with soil Ca concentration. Responses of iWUE to rising atmospheric CO2 concentrations accelerated across sites where Ca availability decreased due to soil acidity constraints, regardless of nitrogen and phosphorus availability. The observed association between soil acidity, Ca uptake, and transpiration suggests that Ca biogeochemistry has important, yet unrecognized, implications for the plant physiological upregulation of carbon and water cycles.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 78%

Section: Methodsmentioning

confidence: 99%

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Calcium availability affects the intrinsic water-use efficiency of temperate forest trees

Oulehle

Urban

Tahovská

et al. 2023

Commun Earth Environ

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“…Tree ontogeny significantly shapes trends in radial growth and needs to be taken into account in order to reveal distinct effect of environmental factors (Cook & Kairiukstis, 2013; Trouillier et al., 2019). Changes in environmental conditions, such as disturbances, climatic oscillations, or shifts in resource availability (e.g., CO 2 , N) can also considerably modulate tree growth, yielding both positive and negative effects (Altman et al., 2017; Braun et al., 2017; Kašpar et al., 2020; Treml et al., 2022). Nevertheless, when ontogenetic effects and disturbances are accounted for, series of tree‐ring indices can provide valuable information about past climate‐growth responses of trees (Ponocná et al., 2016).…”

Section: Introductionmentioning

confidence: 99%

Major tree species of Central European forests differ in their proportion of positive, negative, and nonstationary growth trends

Kašpar,

Tumajer,

Altman

et al. 2024

Global Change Biology

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Temperate forests are undergoing significant transformations due to the influence of climate change, including varying responses of different tree species to increasing temperature and drought severity. To comprehensively understand the full range of growth responses, representative datasets spanning extensive site and climatic gradients are essential. This study utilizes tree‐ring data from 550 sites from the temperate forests of Czechia to assess growth trends of six dominant Central European tree species (European beech, Norway spruce, Scots pine, silver fir, sessile and pedunculate oak) over 1990–2014. By modeling mean growth series for each species and site, and employing principal component analysis, we identified the predominant growth trends. Over the study period, linear growth trends were evident across most sites (56% increasing, 32% decreasing, and 10% neutral). The proportion of sites with stationary positive trends increased from low toward high elevations, whereas the opposite was true for the stationary negative trends. Notably, within the middle range of their distribution (between 500 and 700 m a.s.l.), Norway spruce and European beech exhibited a mix of positive and negative growth trends. While Scots pine growth trends showed no clear elevation‐based pattern, silver fir and oaks displayed consistent positive growth trends regardless of site elevation, indicating resilience to the ongoing warming. We demonstrate divergent growth trajectories across space and among species. These findings are particularly important as recent warming has triggered a gradual shift in the elevation range of optimal growth conditions for most tree species and has also led to a decoupling of growth trends between lowlands and mountain areas. As a result, further future shifts in the elevation range and changes in species diversity of European temperate forests can be expected.

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“…In some dry places, water and N co-limit plant growth, but appropriate levels of N can enhance a plant's water use efficiency [ 23 ]. On the other hand, N fertilization or deposition affect the sensitivity of stromata to water potential, and plant water use efficiency [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Precipitation pattern alters the effects of nitrogen deposition on the growth of alien species Robinia pseudoacacia

Wang,

Guo,

Ding

et al. 2023

Heliyon

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Increasing water-use efficiency mediates effects of atmospheric carbon, sulfur, and nitrogen on growth variability of central European conifers

Cited by 5 publications

References 80 publications

Calcium availability affects the intrinsic water-use efficiency of temperate forest trees

Calcium availability affects the intrinsic water-use efficiency of temperate forest trees

Major tree species of Central European forests differ in their proportion of positive, negative, and nonstationary growth trends

Precipitation pattern alters the effects of nitrogen deposition on the growth of alien species Robinia pseudoacacia

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