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Modeling dynamics of stored soil moisture at stage of control of structures of amelioration systems
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Дата издания
2020Издательство
Latvia University of Life Sciences and TechnologiesБиблиографическое описание
Modeling dynamics of stored soil moisture at stage of control of structures of amelioration systems / A. Volchak [et al.] // Engineering for Rural Development : 19th International Scientific Conference Engineering for Rural Development Proceedings, Jelgava, 20–22.05.2020. – Jelgava (Latvia) : Latvia University of Life Science and Technologies, 2020 – P. 114–120. – https://doi.org/10.22616/erdev.2020.19.tf026.Аннотация
The article contains the results of development of a methodology for assessing and optimizing the
water regime on agricultural lands. To ensure an environmentally safe mode of humidification, operational
instrumental control of dynamics of soil moisture reserves is necessary. A distinctive feature of the developed
rational regime of hydro-reclamation is its inherent and appropriately justified dynamics of soil moisture
reserves as a whole during the growing season and in specific phases of plant development. Methods of
mathematical modeling allow us to fully and quickly present the humidity picture of the field. With this
approach, it is necessary: to establish the number of experimental points in the actual boundaries of the
agricultural field, required for mathematical modeling of soil moisture reserves; to determine the coordinates of
the points where you should quickly measure the soil moisture and which, in turn, will be representative or
characteristic, based on the most complete account of the set of properties of the field; take the optimal soil
moisture for the cultivated crop and the time interval or hydro-reclamation norm , representative in general for
the field; justify the representative depth of the sensor installation (sampling) in order to assess the humidity of
the calculated soil profile. In the feasibility study of the support network points, using the materials of field
surveys, maps of hydrozole soil moisture reserves are modeled and the statistical structure of fields of humidity
of the active layer of soils in various natural hydration years. The developed method is recommended to be used
for objective and qualitative assessment of the natural water regime of soils on agricultural land in the
operational formation of reclamation impacts in the process of managing the structures of drainage and irrigation
systems.
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