The influence of climate change on stomatal ozone flux to a mountain Norway spruce forest

Zapletal, Miloš; Pretel, Jan; Chroust, Petr; Cudlín, Pavel; Edwards‐Jonášová, Magda; Urban, Otmar; Pokorný, Radek; Czerný, Radek; Hůnová, Iva

doi:10.1016/j.envpol.2012.05.008

Cited by 10 publications

(7 citation statements)

References 28 publications

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“…The advantage of O 3 risk assessment by means of PODy can be demonstrated for Fennoscandia, where the potentially most important effect of a future climate change on stomatal O 3 uptake would be mediated through the earlier onset of the start of the growing season, therefore leading to a substantial and increasing risk for negative impacts on vegetation in Northern Sweden (Karlsson et al 2007). Currently, the flux-based O 3 uptake approach has been applied for adult trees of beech (Matyssek et al 2004;Baumgarten et al 2009;Schaub et al 2007;Braun et al 2010;Gerosa et al 2008), conifer species such as spruce, larch (Larix) and stone pine (Pinus pinea) (Wieser et al 2013;Wieser et al 2002;Nunn et al 2006;Zapletal et al 2012) and Mediterranean species such as quercus species (Calatayud et al 2011;Gerosa et al 2008;Manes et al 2007).…”

Section: Forest Conditionmentioning

confidence: 99%

Impacts of acid deposition, ozone exposure and weather conditions on forest ecosystems in Europe: an overview

Vries

Dobbertin

Solberg³

et al. 2014

Plant Soil

169

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Background In 1994, a "Pan-European Programme for Intensive and Continuous Monitoring of Forest Ecosystems" started to contribute to a better understanding of the impact of air pollution, climate change and natural stress factors on forest ecosystems. The programme today counts approximately 760 permanent observation plots including near 500 plots with data on both air quality and forest ecosystem impacts. Scope This paper first presents impacts of air pollution and climate on forests ecosystems as reported in the literature on the basis of laboratory and field research. Next, results from monitoring studies, both at a European wide scale and related national studies, are presented in terms of trends and geographic variations in nitrogen and sulphur deposition and ozone concentrations and the impacts of those changes in interaction with weather conditions on (i) water and element budgets and nutrient-acidity status, (ii) forest crown condition, (iii) forest growth and carbon sequestration and (iv) species diversity of the ground vegetation. The empirical, field based forest responses to the various drivers are evaluated in view of available knowledge.Conclusions Analyses of large scale monitoring data sets show significant effects of atmospheric deposition on nutrient-acidity status in terms of elevated nitrogen and sulphur or sulphate concentrations in forest foliage and soil solution and related soil acidification in terms of elevated aluminium and/or base cation leaching from the forest ecosystem. Relationships of air pollution with crown condition, however, appear to be weak and limited in time and space, while climatic factors appear to be more important drivers. Regarding forest growth, monitoring results indicate a clear fertilization effect of N deposition on European forests but the field evidence for impacts of ambient ozone exposure on tree growth is less clear.

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Section: Forest Conditionmentioning

confidence: 99%

Impacts of acid deposition, ozone exposure and weather conditions on forest ecosystems in Europe: an overview

Vries

Dobbertin

Solberg³

et al. 2014

Plant Soil

169

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“…The total dry deposition of O 3 is several-fold or 10- to 20-fold lower at night than during the day (Padro 1996 ; El-Madany et al 2017 ). According to the literature, stomatal flux is proportional to air humidity (Zapletal et al 2012 ; Fares et al 2013 ). The night-time concentrations of O 3 decrease steadily due to the absence of sunlight and redox reactions.…”

Section: Resultsmentioning

confidence: 99%

Atmospheric Factors Affecting a Decrease in the Night-Time Concentrations of Tropospheric Ozone in a Low-Polluted Urban Area

Warmiński

Bęś

2018

Water Air Soil Pollut

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Ozone (O3) decomposition in the troposphere is a very important process which prevents excessive O3 accumulation in the air. It is particularly significant on warm summer days which are marked by a high risk of photochemical smog. We used Spearman’s rank correlation test to determine relationships between the drop in O3 concentrations over time (-ΔO3), nitrogen oxide (NO), nitrogen dioxide (NO2), and total nitrogen oxide (NOx) concentrations and meteorological factors (1-h average) in low-polluted urban area in Olsztyn (north-eastern Poland). Nitrogen oxide concentrations were measured continuously by the chemiluminescence method, and O3 concentrations were determined by the UV photometric method. The obtained results suggest that the rate of decomposition of tropospheric O3 is affected mostly by the presence of NOx, high temperature, and air humidity (positive correlation) as well as by wind speed (negative correlation). Maximum correlation coefficient values were reported between –ΔO3 and air temperature, –ΔO3 and absolute air humidity when NOx concentrations were low (below 1.0 microgram per cubic meter), reaching 0.271 and 0.243, respectively. These results indicate that O3 also reacted with air components other than NO and NO2. Precipitation at average temperature of < 0 °C did not significantly contribute to a drop in O3 concentrations at night-time. In the warm season, precipitation slowed down the rate of O3 decomposition, mostly because NOx were scrubbed by rain. An analysis of seasonal and daily –ΔO3 fluctuations revealed that –ΔO3 values were highest in the summer and shortly after sunset in the diurnal cycle.

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“…equivocal (Šrámek et al, 2007Hůnová et al, 2010Hůnová et al, , 2011Zapletal et al, 2012;Vlasáková-Matoušková and Hůnová, 2015), however, and despite the high O 3 levels recorded, no serious damage attributable to O 3 has been reported so far.…”

Section: Introductionmentioning

confidence: 86%

What Are the Principal Factors Affecting Ambient Ozone Concentrations in Czech Mountain Forests?

Hůnová

Brabec

Malý

2019

Front. For. Glob. Change

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The aim of our study was to identify the factors substantially affecting day-to-day variability in O 3 concentrations in Czech mountain forests and to describe their influence in detailed, quantitative way. We examined the effects of meteorology and ambient NO x recorded in regular long-term continuous monitoring at five mountain forest sites representing different regions, covering both polluted and relatively unpolluted areas over the time period of 1992-2018. To investigate the association between ambient O 3 concentrations on one hand, and precursor NO x concentrations, and meteorology on the other hand, we used a generalized additive model, GAM, with semiparametric (penalized-spline-based) components to capture properly the possible departures from linearity that is not captured by traditional linear regression approaches. Our results revealed that the O 3 concentrations showed significant associations with all selected explanatory variables, i.e., air temperature, global solar radiation (GLRD), relative humidity, and NO x . Apparently, both meteorology and air pollution are highly important for day-to-day O 3 concentrations, and this finding is consistent for all five rural sites, representing middle-elevated forested mountain areas in Central Europe. In addition to individual variables, we were able to detect interactions between three pairs of explanatory variables, namely temperature * GLRD, temperature * relative humidity, and GLRD * relative humidity. Moreover, we confirmed non-linear O 3 behavior toward all individual explanatory variables.

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The influence of climate change on stomatal ozone flux to a mountain Norway spruce forest

Cited by 10 publications

References 28 publications

Impacts of acid deposition, ozone exposure and weather conditions on forest ecosystems in Europe: an overview

Impacts of acid deposition, ozone exposure and weather conditions on forest ecosystems in Europe: an overview

Atmospheric Factors Affecting a Decrease in the Night-Time Concentrations of Tropospheric Ozone in a Low-Polluted Urban Area

What Are the Principal Factors Affecting Ambient Ozone Concentrations in Czech Mountain Forests?

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