Ozone exposure affects leaf wettability and tree water balance

Schreuder, Maarten; Hove, L.W.A. van; Brewer, Carol

doi:10.1046/j.0028-646x.2001.00272.x

Cited by 33 publications

(27 citation statements)

References 42 publications

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“…1 and 2). At the presence of ozone, the leaves cuticle changes and greater stomatal apertures can lead to increased transpiration (Lee et al, 1990;Turunen and Huttunen, 1990;Schreuder et al, 2001). The AOT40 (accumulated exposure over a threshold of 40 ppb) during the growing season at our study site was 20.12 ppm h, which far exceeded the current critical level for ozone impacts on forest trees of AOT40 5 ppm h (UNECE, 2004).…”

Section: Tablementioning

confidence: 87%

Water, heat, and airborne pollutants effects on transpiration of urban trees

Wang

Ouyang

Chen

et al. 2011

Environmental Pollution

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a b s t r a c tTranspiration rates of six urban tree species in Beijing evaluated by thermal dissipation method for one year were correlated to environmental variables in heat, water, and pollutant groups. To sort out colinearity of the explanatory variables, their individual and joint contributions to variance of tree transpiration were determined by the variation and hierarchical partitioning methods. Majority of the variance in transpiration rates was associated with joint effects of variables in heat and water groups and variance due to individual effects of explanatory group were in comparison small. Atmospheric pollutants exerted only minor effects on tree transpiration. Daily transpiration rate was most affected by air temperature, soil temperature, total radiation, vapor pressure deficit, and ozone. Relative humidity would replace soil temperature when factors influencing hourly transpiration rate was considered.

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Section: Tablementioning

confidence: 87%

Water, heat, and airborne pollutants effects on transpiration of urban trees

Wang

Ouyang

Chen

et al. 2011

Environmental Pollution

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“…The results obtained are consistent with changes in leaves wettability. Schreuder et al (2001) found that increased leaf life span may reduce the hydrophobicity of leaves. Crocford & Richardson (1990) and Sase et al (2008) when performing experiments using both conifer and deciduous species found that older leaves were losing their hydrophobic properties.…”

Section: Discussionmentioning

confidence: 99%

Seasonal variability of interception and water wettability of common oak leaves

Klamerus‐Iwan

Błońska

2016

Ann. For. Res.

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A. Klamerus-Iwan, E. BłonskaKlamerus-Iwan A., Błonska E., 2017. Seasonal variability of interception and water wettability of common oak leaves. Ann. For. Res. 60(1): 63-73.Abstract. Wettability of leaves and the resulting amount of interception loss of tree crowns is an important component of the atmosphere-tree stand-soil system balance. In the study, we hypothesized that changes occurring in leaves during the vegetation period can significantly affect the amount of rainwater retained by plants and wettability of leaves which is expressed by the contact angle between drops and leaves. We evaluated the hypothesis based on measurement series, which combined direct spraying of leaves with water at different stages of development at a constant temperature with observations made with an electron scanner which was used to determine changes occurring within a leaf, while the photographic method was used to analyze the contact angle of drops. The study involved common oak (Quercus robur). Samples of twigs derived from this species were collected in the area of Przedbórz (Poland) forest district, in particular from the trees with well-developed crowns. Twigs were collected from 10 trees of similar age (35-40 years). The resulting database contained experimental data on changes of raindrop adhesion on oak leaves throughout the growing season. The internal contact angle of drops was within the range of 150° on the upper side of the leaf and 160° on the underside in May, up to 15° and 35° in November on the upper and underside of the leaves. Loss of interception was established at 6% at the beginning of the growing season up to 22% in autumn. It was concluded that the wettability and the level of interception increases in line with the age of a leaf.

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“…Although most studies have standardized the methods by applying a 50‐µl water droplet to the leaf surface (Table ), to our knowledge, no studies have investigated whether the water droplet size influences the water droplet retention measurements. Because Schreuder et al () calculated water droplet retention by applying 10‐µl water droplets, it is uncertain if their water droplet retention measurements are comparable with the other studies in Table , which applied 50‐µl water droplets.…”

Section: Measurement Of Leaf Hydrophobicity and Water Droplet Retentionmentioning

confidence: 99%

The significance of leaf water repellency in ecohydrological research: a review

2012

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Numerous studies in materials science and chemistry have expanded our understanding of the repellency of water droplets from surfaces. Much of the inspiration for the development of synthetic water‐repellent materials came from the examination of water‐repellent properties of animals and plants in the natural environment. The hydrological significance of water repellency in the natural environment remains an underexplored research topic. Although the hydrological significance of soil water repellency has become well established in the ecohydrology and water resources literature, fewer studies have examined the significance of leaf water repellency. This review examines the properties of leaf water repellency, the methodologies used to calculate leaf water repellency, the leaf surface properties that promote leaf water repellency, and the significance of leaf water repellency in ecohydrological research. The repellency of a water droplet by a leaf surface is functionally important among plant species and may reflect selective strategies that either favour leaf water uptake in drought‐prone environments or promote higher photosynthetic efficiency during prolonged periods of precipitation through higher repellency. Information on the functional significance of leaf water repellency in hydrologic models could enhance our understanding of the delivery of water resources to municipal reservoirs and fill in a missing gap in our understanding of leaf water repellency as a process that influences discharge, and by extension, water resources. Copyright © 2012 John Wiley & Sons, Ltd.

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Ozone exposure affects leaf wettability and tree water balance

Cited by 33 publications

References 42 publications

Water, heat, and airborne pollutants effects on transpiration of urban trees

Water, heat, and airborne pollutants effects on transpiration of urban trees

Seasonal variability of interception and water wettability of common oak leaves

The significance of leaf water repellency in ecohydrological research: a review

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