Physiological and foliar injury responses of Prunus serotina, Fraxinus americana, and Acer rubrum seedlings to varying soil moisture and ozone

Schaub, Marcus; Skelly, J. M.; Steiner, Kim C.; Davis, Donald D.; Pennypacker, S. P.; Zhang, J; Ferdinand, J.A.; Savage, J. E.; Stevenson, Robert E.

doi:10.1016/s0269-7491(02)00462-1

Cited by 47 publications

(29 citation statements)

References 33 publications

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“…On the other hand, plants may respond to increased vapour pressure deficit and reduced soil water availability by reducing the stomatal opening, leading to a reduced O 3 uptake despite peak ozone levels (e.g., Schaub et al 2003). This influence by environmental site conditions is not taken into account with the AOT40 concept as stated for example by G. P. Karlsson, P. E. Karlsson, Soja, Vanermeiren, and Pleijel (2004).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, monitoring investigations within the ICP-Forests framework were conducted based on the critical loads and levels as defined in the past. In the meantime, however, the broad database of ICP-Forests as well as new findings have initiated further discussions about the air pollutant effects on forest ecosystems and the Level II approach (e.g., Graf Pannatier et al 2004;Novak et al 2003;Schaub et al 2003;Schmitt et al 2005;Suutari et al 2001;Thimonier et al 2005).…”

Section: Introductionmentioning

confidence: 99%

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Atmospheric Deposition and Ozone Levels in Swiss Forests: Are Critical Values Exceeded?

Waldner

Schaub

Pannatier

et al. 2007

Environ Monit Assess

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Air pollution affects forest health through atmospheric deposition of acidic and nitrogen compounds and elevated levels of tropospheric ozone (O3). In 1985, a monitoring network was established across Europe and various research efforts have since been undertaken to define critical values. We measured atmospheric deposition of acidity and nitrogen as well as ambient levels of O3 on 12, 13, and 14 plots, respectively, in the framework of the Swiss Long-Term Forest Ecosystem Research (LWF) in the period from 1995 to 2002. We estimated the critical loads of acidity and of nitrogen, using the steady state mass balance approach, and calculated the critical O3 levels using the AOT40 approach. The deposition of acidity exceeded the critical loads on 2 plots and almost reached them on 4 plots. The median of the measured molar ratio of base nutrient cations to total dissolved aluminium (Bc/Al) in the soil solution was higher than the critical value of 1 for all depths, and also at the plots with an exceedance of the critical load of acidity. For nitrogen, critical loads were exceeded on 8 plots and deposition likely represents a long-term ecological risk on 3 to 10 plots. For O3, exceedance of critical levels was recorded on 12 plots, and led to the development of typical O3-induced visible injury on trees and shrubs, but not for all plots due to (1) the site specific composition of O3 sensitive and tolerant plant species, and (2) the influence of microclimatic site conditions on the stomatal behaviour, i.e., O3 uptake.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Atmospheric Deposition and Ozone Levels in Swiss Forests: Are Critical Values Exceeded?

Waldner

Schaub

Pannatier

et al. 2007

Environ Monit Assess

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“…The emergence of visible injuries may have been promoted by the regular irrigation and N fertilization that the trees received. These practices were likely to favor stomatal opening, as shown in study II for N, and thus increase O 3 flux (Schaub et al 2003). Two of the clones even showed visible O 3 injuries under ambient air (I), which is rare in the O 3 climate prevailing in Fennoscandia (Timonen et al 2004).…”

Section: O 3 Induced Leaf Injuries But Improved Tolerance Against Rusmentioning

confidence: 80%

“…The responses of trees to O 3 are modified by other co-occurring environmental factors, such as soil N and water availability (Landolt et al 1997, Schaub et al 2003, Häikiö et al 2007. Furthermore, the effects of O 3 depend on tree species as well as on genotypes within species.…”

Section: Increasing Levels Of Tropospheric Omentioning

confidence: 99%

European aspen and hybrid aspen under changing environment – Leaf traits, growth and litter decomposition

Nikula¹

2011

Diss. For.

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“…Favorable conditions are dependent on plant susceptibility to O 3 , the concentration and duration of exposure to O 3 , and the external environment in which the plant is growing (Kohut 2005, Krupa et al 2001, Schaub et al 2003. Of the many environmental conditions that influence plant-pollutant interactions, soil moisture status is often considered the most critical because stomatal closure during periods of drought or low soil moisture can severely limit O 3 uptake.…”

Section: Introductionmentioning

confidence: 99%

Ozone injury to forests across the northeast and north central United States, 1994 - 2010

Smith¹,

Morin²,

McCaskill³

2012

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Ozone is a highly toxic air contaminant that has been shown to decrease tree growth and cause signifi cant disturbance to forested ecosystems. Ozone also causes distinct foliar injury symptoms to certain species (bioindicator plants) that can be used to detect and monitor ozone stress (biomonitoring) in the forest environment. In the early 1990s, the U.S. Forest Service, in partnership with the U.S. Environmental Protection Agency, developed and implemented a suite of forest health indicators to respond to emerging demands for a comprehensive assessment of the health of U.S. forests. This report focuses on the states in the Northern Research Station-Forest Inventory and Analysis region, which has the longest record of ozone biomonitoring in the country, from 1994 through 2010. The results of 17 years of ozone injury detection provide indisputable evidence that ozone-induced foliar injury symptoms occur routinely on ozone-sensitive bioindicator plants across much of the forested landscape and in areas previously thought to be relatively ozone free. This report provides state-level information on where ozone stress occurs and whether ozone stress is increasing or decreasing over time. It also provides state-level estimates of the acres of forest land and volume of ozone-susceptible species at risk of ozone impact.

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Physiological and foliar injury responses of Prunus serotina, Fraxinus americana, and Acer rubrum seedlings to varying soil moisture and ozone

Cited by 47 publications

References 33 publications

Atmospheric Deposition and Ozone Levels in Swiss Forests: Are Critical Values Exceeded?

Atmospheric Deposition and Ozone Levels in Swiss Forests: Are Critical Values Exceeded?

European aspen and hybrid aspen under changing environment – Leaf traits, growth and litter decomposition

Ozone injury to forests across the northeast and north central United States, 1994 - 2010

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