Urban salt contamination impact on tree health and the prevalence of fungi agent in cities of the central Lithuania

Snieškienė, Vilija; Baležentienė, Ligita; Stankevičienė, Antanina

doi:10.1016/j.ufug.2016.05.015

Cited by 10 publications

(4 citation statements)

References 18 publications

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“…In addition, leaf abortion and a reduction in tree vitality was observed in plants growing closest to roads with heavy traffic [59]. Notably, soil salinity has also been associated with sooty mold leaf damage [60]. Another issue is the salinity source and dose, for example, CaCl 2 is typically less toxic for plants than NaCl.…”

Section: Contamination Ph Changes Nutrient Deficiencymentioning

confidence: 99%

The Complex Issue of Urban Trees—Stress Factor Accumulation and Ecological Service Possibilities

Czaja

Kołton

Muras

2020

Forests

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This review paper is the first that summarizes many aspects of the ecological role of trees in urban landscapes while considering their growth conditions. Research Highlights are: (i) Plant growth conditions in cities are worsening due to high urbanization rates and new stress factors; (ii) Urban trees are capable of alleviating the stress factors they are exposed to; (iii) The size and vitality of trees is related to the ecological services they can provide. Our review shows, in a clear way, that the phenomenon of human-related environmental degradation, which generates urban tree stress, can be effectively alleviated by the presence of trees. The first section reviews concerns related to urban environment degradation and its influence on trees. Intense urbanization affects the environment of plants, raising the mortality rate of urban trees. The second part deals with the dieback of city trees, its causes and scale. The average life expectancy of urban trees is relatively low and depends on factors such as the specific location, proper care and community involvement, among others. The third part concerns the ecological and economic advantages of trees in the city structure. Trees affect citizen safety and health, but also improve the soil and air environment. Finally, we present the drawbacks of tree planting and discuss if they are caused by the tree itself or rather by improper tree management. We collect the latest reports on the complicated state of urban trees, presenting new insights on the complex issue of trees situated in cities, struggling with stress factors. These stressors have evolved over the decades and emphasize the importance of tree presence in the city structure.

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Section: Contamination Ph Changes Nutrient Deficiencymentioning

confidence: 99%

The Complex Issue of Urban Trees—Stress Factor Accumulation and Ecological Service Possibilities

Czaja

Kołton

Muras

2020

Forests

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“…Prolonged use of de-icing salts has a detrimental impact on the environment, most of all on roadside soils and vegetation 6 – 8 . Abundant evidence demonstrates that elevated concentrations of NaCl ions in the soil solution both directly and indirectly alter plant growth and affect the health status of roadside trees 9 , 10 . Though plants perceive and respond to salt-induced stress by quickly altering gene expressions in parallel with biochemical and physiological changes 11 , prolonged exposure to salts weakens their defence mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Effect of NaCl road salt on the ionic composition of soils and Aesculus hippocastanum L. foliage and leaf damage intensity

Łuczak

Czerniawska-Kusza

Rosik-Dulewska

et al. 2021

Sci Rep

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We investigated the accumulation of sodium chloride in roadside soils and common horse chestnut Aesculus hippocastanum L. under urban conditions to evaluate changes in soil and leaf ionic content and their relationship with foliar damage, considering the visual assessment of trees of the same health status. A total of 15 field sites were assessed in late June 2016. The analysis included soil granulometric composition, pH, electrical conductivity, and the content of Cl−, Na+, K+, Ca2+, and Mg2+ ions in soil and foliage samples. The results showed increased salinity and alkalization of roadside soils together with the decreased magnesium content. Foliage samples manifested significantly higher concentrations of Na+ and Cl−. A wide range of Cl− content was noted in leaves (2.0–11.8% d.w.) regardless of their damage index. On the contrary, leaf damage was strongly correlated with increasing Na+ concentrations and decreasing K+ and Mg2+. A severe imbalance of nutrients, and therefore poor urban tree vitality, can be attributed to the excessive accumulation of de-icing salt. However, further research would be needed to clarify the discrepancy between the extent of leaf damage and chloride content.

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“…Leaf damage is mainly caused by Cl − (Slabu et al 2009;Genc et al 2015). Salt stress can also increase the susceptibility of trees to pathogens (Munck et al 2010;Snieškienė et al 2016), but there have also been reports that salinity may reduce the number of aphids on linden leaves (Sienkiewicz-Paderewska et al 2017;Bouraoui et al 2019).…”

Section: Resultsmentioning

confidence: 99%

The importance of prenol lipids in mitigating salt stress in the leaves of Tilia × euchlora trees

Baczewska-Dąbrowska

Dmuchowski

Gozdowski

et al. 2021

Trees

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Key message Plants use multiple mechanisms to deal with salt stress. Salt stress increases the content of polyprenols inTilia’s leaves, which may mitigate stress. Abstract De-icing salt has been used on streets and pavements in most northern countries since the 1960s. Salt stress limits all vital functions of trees. Tilia × euchlora is planted in many cities given its unique decorative qualities. The aim of this study was to determine the tree strategy to mitigate salt stress due to the synthesis of polyprenols in leaves. Many years of observations have demonstrated that trees of the same species growing in the same street conditions may have extremely different health statuses. The study consisted of two experiments: a field experiment with urban street trees growing in saline soils and a controlled pot experiment with young trees exposed to increasing doses of salt. The differences between the young trees from the pot experiment and older trees from the field experiment were expressed in their ability to synthesize polyprenols. In urban conditions, the tree leaves with less damage contained significantly more polyprenols than did those with more damage. The salt stress mitigation strategy may be related to the ability to synthesize polyprenols. This ability can be acquired through adaptation by older trees. The mechanism involves limiting the transport of Cl− and Na+ to leaves. In the pot experiment, the young trees did not exhibit this ability.

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Urban salt contamination impact on tree health and the prevalence of fungi agent in cities of the central Lithuania

Cited by 10 publications

References 18 publications

The Complex Issue of Urban Trees—Stress Factor Accumulation and Ecological Service Possibilities

The Complex Issue of Urban Trees—Stress Factor Accumulation and Ecological Service Possibilities

Effect of NaCl road salt on the ionic composition of soils and Aesculus hippocastanum L. foliage and leaf damage intensity

The importance of prenol lipids in mitigating salt stress in the leaves of Tilia × euchlora trees

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