The feasibility of using soil runoff in calculating the water balance of ameliorated soil

Abstract

The water regime on the reclaimed lands changes significantly during the year, and its possible change must be established or predicted in advance at the project stage. From the main characteristics of the water regime of soil, it is possible to reliably predict changes in moisture reserves and, worse, the dynamics of groundwater levels. Prediction of changes in moisture reserves in soil is carried out using “water balance calculations”. The results of long-term field research have shown that the main factors causing surface runoff are: the amount and intensity of precipitation, the initial moisture content of the upper soil layers, the slope and condition (agricultural use) of the site surface. The feasibility of using a variable runoff boundary in calculating the water balance of ameliorated soil is shown. The results of field experiments on the study of surface runoff in conditions of loamy soil are presented. Two-factor dependences of the daily runoff from precipitation and soil moisture have been obtained in case of its various agricultural uses.

Dynamics of changes in the content of nutrients in the soil on fine - zapadinny relief

“…The soil and climatic conditions of the Republic of Belarus do not allow intensive farming due to waterlogging on an area of about 8 million hectares (more than 40% of the territory) [8]. In this regard, drainage reclamation systems have been of fundamental importance for the development of agricultural production in the Republic of Belarus for more than 120 years [9].…”