Experimental Investigation Into Toxic Impact of Road Maintenance Salt on Grass Vegetation

Baltrėnas, Pranas; Kazlauskienė, Agnė; Zaveckyte, Jolita

doi:10.3846/16486897.2006.9636883

Cited by 17 publications

(11 citation statements)

References 8 publications

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“…Investigations of the resistance of grass vegetation to the toxic impact of road salts showed that the most quickly germinating plant (in 1-2 weeks) and the most resistant to the impact of toxins (up to 20 g/kg NaCl in soil) is perennial ryegrass (Lolium perenne L.), while meadow fescue (Festuca pratinsis Huds. L.) or Kentucky bluegrass (Poa pratinsis L.) germinates only in the 5th-6th week of investigation [21].…”

Section: Impact On Vegetationmentioning

confidence: 99%

Reduction of negative impact of salts used for winter road maintenance on the environment

Ratkevičius

Laurinavičius

Tuminienė

et al. 2014

The 9th International Conference "Environmental Engineering 2014"

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Winter in Lithuania is the most complicated time of the year to ensure the functioning of transport systems. The main factor which impedes a normal operation of the systems is weather conditions making a direct influence on vehicles and infrastructure elements of transport systems. Precipitation, low air temperature, strong wind and other unfavourable weather conditions impede traffic on the roads and streets. In Lithuania, like in other countries of the world, for the purpose of winter road maintenance (to reduce pavement slipperiness) chemical materials on a basis of chlorides are used (NaCl, CaCl2, NaCl + CaCl2 mixes), the annual amount of which spread on the roads and streets of Lithuania comes to 160 thousand tonnes. Though salts, used for road maintenance, are able to immediately ensure safe traffic conditions, they all have larger or smaller negative impact on the environment which depends on the composition of salts, the amount used and interaction with other environmental components. A negative environmental impact comprises: ground (soil) contamination; water pollution (surface, ground and underground); impact on flora, fauna and human beings; corrosion (of vehicles, roads and reinforced concrete structures); deterioration and deformation of road pavements. Based on the increasing requirements in the field of traffic safety, environmental protection and ecology it is necessary to search for the most effective and less damaging measures to ensure road maintenance in winter: to improve planning and management of winter road maintenance; to implement modern snow cleaning and ice removal technologies; to put into practice preventive road maintenance measures; to use alternative materials and inhibitors which reduce a negative environmental impact.

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Section: Impact On Vegetationmentioning

confidence: 99%

Reduction of negative impact of salts used for winter road maintenance on the environment

Ratkevičius

Laurinavičius

Tuminienė

et al. 2014

The 9th International Conference "Environmental Engineering 2014"

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“…Atliekant žolinės augmenijos antžeminės dalies aukščio tyrimus, pastebėta, kad druskos kiekis ištirpusiame sniege turi tiesioginės įtakos pakelės augmenijos antžeminės dalies aukščiui: kuo didesnė NaCl koncentracija, tuo antžeminė dalis žemesnė [1][2][3][4][5][6][7][8][9][10][11].…”

Section: įVadasunclassified

Mathematical Modelling of Growth Intensity of Roadside Plants

Baltrėnas

Zaveckyte

Kazlauskienė

et al. 2006

Journal of Environmental Engineering and Landscape Management

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To maintain safety during winter, deicing salt (sodium chloride) is sprinkled over roads. Snow, mixed with highway salt, is then cleared by snowplows and usually ends up on roadsides where trees are planted. On conifers, adversely affected by deicing salt, needle shedding is accelerated. Undesirable results for the environment, caused by road maintenance chemical, are damaged vegetation, soil, polluted surface and groundwater, therefore, fauna, and people are also negatively impacted. The aim of modelling is to find a coefficient for calculating ryegrass, fescue grass and meadow‐grass length of overground part after some time, accepting that the concentration of salt in melting snow and air temperature will be the same during investgation.

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“…In one way or another, if introduced salt into the plants slow down their growth, disrupts other physiological characteristics. Salt affect areas therefore slows photosynthesis and slows water evaporation [2].…”

Section: Introductionmentioning

confidence: 99%

Viability and Length of Above-Ground Part of White Clover in Polluted Soil

Strėlkutė

Bradulienė

2014

The 9th International Conference "Environmental Engineering 2014"

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Dustiness on gravel roads and slippery in winter is reduced through the application of various dustiness and slippery minimization materials, most frequently-calcium chloride. However, global efforts have been intensified to find new effective materials making the least possible damage to the environmental components. Some of them is molasses based material and bishophit (technical magnesium chloride with additives). The investigations described in this paper were carried out by means of the method on the growth of grass vegetation in the contaminated soil. The aim of these investigations is to determine the impact of material for the road maintenance on the viability of herbaceous vegetation and the length of above-ground part. One herbaceous plant species have been selected for the investigations: white clover (L. Trifolium trepens). This species often grow on the roadsides of roads and are used for the recultivation of nearby pastures. Investigations shows that after 4 weeks growing, white clover germinated in polluted soil: with molasses based material (10%, 20%, 30%) viability was 76-87%, with mixture of molasses based material (10%, 20%, 30%) and calcium chloride (36.5%) was 0%, with bishophit (9, 12, 46 ml) was 1%. Greatest length of above-ground part was determined in soil polluted with 10% molasses based material. Length was 4.10 cm.

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Experimental Investigation Into Toxic Impact of Road Maintenance Salt on Grass Vegetation

Cited by 17 publications

References 8 publications

Reduction of negative impact of salts used for winter road maintenance on the environment

Reduction of negative impact of salts used for winter road maintenance on the environment

Mathematical Modelling of Growth Intensity of Roadside Plants

Viability and Length of Above-Ground Part of White Clover in Polluted Soil

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