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Woodlands as a tool for actively managing the micro-climate of agrophytocoenosis.
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| Author:
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OLGA V.RULEVA, GLEB A.RULEV, ALEKSANDR S.RULEV
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| Abstract:
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Aim. Identify the role of forest belts (FB) in managing the microclimate of agricultural fields to increase their bioproductivity through comparative analysis of soil temperature indicators, based on their thermal conductivi-ty, heat capacity and thermal conductivity.
Material and Methods
The research was conducted on chernozems of the Rostov and chestnut soils of the Volgograd region. Soil temperature at a depth of 5 - 20 cm in the zone of influence of forest strips obtained in 1990 - 2019 has been considered. Soil temperature at the depth of sowing is one of the decisive indicators of the possibility of the beginning of the autumn sowing season. Mathematical modelling and statistical treatment has been used in analysing experimental data on soil temperature indicators.
Results
Temperature conductivity, as well as thermal conductivity, depends on the soil composition. Quartz has the highest values, humus the lowest, and clay the medium. Under the black film mulch, there are no sudden changes in temperature during the day. Mulch film smoothes out daily temperature differences in the upper soil layer, which is typical of dry steppe conditions and is important during the rooting period of woody plants. It has been found that only FB and spacing in the inter-lane cell have a significant impact on soil temperature indicators.
Conclusions
The impact of the forest belt on soil temperature without vegetation cover is described by the linear regression equation of the species: y = 0,12 x + 1,02 with a determination coefficient of R2 = 0,91. The equation of changes in soil temperature under agrocenosis during the growing season changes exponentially as a species: ? = 1,03-?"°,45? with a determination coefficient R2 = 0,92.
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| Keyword:
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Forest belt, microclimate, agrophytocoenosis, soil temperature, heat capacity, thermal conductivity, modelling.
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| EOI:
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| DOI:
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https://doi.org/10.31838/ijpr/2020.12.04.472
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| Download:
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