Aerodynamic properties of roadside line plantings of various designs
DOI:
https://doi.org/10.31548/forest2020.01.034Abstract
The article deals with the value of roadside forest strips in the context of automobile road communications protection against unfavorable climatic factors, their performance of sanitary-hygienic, sound-absorbing and aesthetic functions. The attention is paid to the historical aspects of creating protective strip plantings of various functional purposes. A comprehensive protective effect of linear plantings of various designs on adjacent field lands, transport routes and the environment are presented on the basis of domestic and foreign scientific literary sources.
The main purpose of the conducted researches was to substantiate the effectiveness of roadside forest strips of different structures and different species composition with regard to their influence on changing wind regime of road transport in the Western Polissia. It is indicated that the implementation of the program tasks was carried out using a complex methodology, which includes the study of forest reclamation and aerodynamic features of strip plantings.
The aerodynamic properties of roadside strips were established taking into account their design features and the category of roads. A steady tendency to slow down the wind velocity was detected in all variants of studies. Strips of the dense construction were most influenced by this indicator. The wind velocity also reduces in most roadside forest stands, as it is evidenced by a comparative analysis of the indicators on their fringes.
The calculations also showed the lowest wind penetration into dense forest strips, and the highest one into the thinly planted strip constructions. The analysis of slowing down the wind velocity indicators and wind penetration of roadside forest strips depending on the road category (traffic intensity) showed that there is no certain trend in this regard. Different categories of roads are protected by linear plantations of various design, which in turn are determined by the peculiarities of their structures. It is noted that dense forest strips will be the most effective for highways of national importance and regional roads with heavy traffic, whereas open shelterbelts and thinly planted ones (blown design) will be the most suitable for territorial roads of local importance.
Keywords: protective height, wind speed, roads of national importance, design, wind permeability, anemometer.
References
Pavlishyna, O. M. (2009). Protective forest plantations of the southwestern railway. Scientific Bulletin of UNFU, 19 (15), 98-102 [in Ukrainian].
Sheludchenko, В. А., & Vasyk, L. S. (2010). Rationale for the panels of the forest protection stripes of the road network. Ecological safety and balanced nature management, 2, 35-41 [in Ukrainian].
Environmental protection. Forest areas along railways and highways and in strips of drainage are protective. Selection rules: ISO 7173: 2010. [Effective on 2012-07-01] State Consumer Standard of Ukraine, 2011. 10. (National Standard of Ukraine) [in Ukrainian].
Pylypenko, O. I., Sovakov, O. V. (2006). Influence of forest protection strips of optimal construction on soil properties in the conditions of the central Right-bank Forest-steppe. Interagency Scientific and Technical Collection. Forestry, wood, paper and wood industry, 31, 12-18 [in Ukrainian].
Pylypenko, O. I., Yukhnovskyi, V. Yu., Sovakov, O. V. (2019). Soil protection systems from erosion. Kyiv: Vydavnychyi Dim Kondor, 372 [in Ukrainian]. https://doi.org/10.15407/ugz2019.02.049
Yukhnovskyi, V. Yu., Dudarets, S. M., Maliuha, V. M., Sovakov, O. V. (2015). Forest reclamation: workshop teaching manual. Condor Publishing House [in Ukrainian].
Hladun, H. B., Hladun, Yu. Н. (2013). Protection of highways by forest plantations of linear type and their forecast volumes. Scientific hanging UkrNDILGA, 123, 103-113 [in Ukrainian].
Forest Code of Ukraine. Codes of Ukraine. (2006). № 6. 74 [in Ukrainian].
Sovakov, O. V. (2009). Field-protective effectiveness of the forest stripe system in the conditions of the Right-bank Forest Steppe. Scientific Bulletin of NULES of Ukraine, 135, 274-282 [in Ukrainian].
State Road Agency of Ukraine. (2019). Retrieved from https://ukravtodor.gov.ua [in Ukrainian].
Polishchuk, O. P. (2009). Forestry and reclamation efficiency of field protective forest strips of different structures formed by felling in the conditions of the Kyiv highlands. Education and Research Institute of Forestry and Landscape-Park Management, National University of Life and Environmental Sciences of Ukraine. Kyiv [in Ukrainian].
Sytnyk, O. S. (2005). Forestry features and protective role of forest strips of different constructions in the conditions of the right-bank forest steppe. Education and Research Institute of Forestry and Landscape-Park Management, National University of Life and Environmental Sciences of Ukraine. Kyiv [in Ukrainian].
Rain, J. K., Stevenson, D. C. (1977). Wind protection by model fence in a simulated atmospheric boundary layer. Journal of Industrial Aerodynamics, 2, 159-180. https://doi.org/10.1016/0167-6105(77)90015-0
Cornelis, W., Gabriels, D. (2005). Optimal windbreak design for wind-erosion control. Journal of Arid Environments, 2, 315-332. https://doi.org/10.1016/j.jaridenv.2004.10.005
Vigiak, О., Sterk, G., Warren, A., Hagen J. (2003). Spatial modeling of wind speed around windbreaks. Catena, 52 (3/4), 273-288. https://doi.org/10.1016/S0341-8162(03)00018-3
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