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Realization of integral model of a water balance of soi

Abstract

It is shown, that the traditional algebraic form of submission of a water balance of soil can not take into account a regular variability of soil humidity being integral characteristic of flowing continuously process of consumption and redistribution of a moisture in a soil profile. It is offered to divide components of a water balance into two categories: acting continuously (evapotranspiration, replenishment etc.) and discrete (precipitation, watering, run-off etc.). According to this division, the integral equation of water balance is set up and decided. The analytical solutions of the equation for elementary cases are indicated. Their correspondence to the experiment data is shown.

About the Author

A. P. Likhatsevich
RUE "Institute for Land Reclamation"
Belarus


References

1. Будаговский А.И. Зависимость испарения от влажности почвы // Суховеи, их происхождение и борьба с ними. - М.: Изд-во АН СССР, 1957. - С. 189-198

2. Долгов С.И. Исследования подвижности почвенной влаги и ее доступности для растений. - М.-Л.: Изд-во АН СССР, 1948. - 207 с

3. Лихацевич А.П., Стельмах Е.А. Оценка факторов, формирующих неустойчивую влагообеспеченность сельскохозяйственных культур в гумидной зоне. - Мн.: ООО «Белпринт», 2002. - 210 с

4. Химин Н.М. Метод расчета влагообмена между корнеобитаемым слоем почвы и грунтовыми водами на орошаемом сельскохозяйственном поле // Метеорология и гидрология. - 1989. - №8. - С. 104-111


Review

For citations:


Likhatsevich A.P. Realization of integral model of a water balance of soi. Land Reclamation. 2004;(2):5-12. (In Russ.)

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ISSN 2070-4828 (Print)