Impact of land use types on soil moisture dynamics of loamy soils

Abstract

In the last decades, drought has been a significant climate hazard in the Carpathian Basin. In this study, we investigated the soil moisture dynamics (SM) of three different land use types (pasture, ploughland, and orchard) in the Transdanubian Hills (SW Hungary). The soil moisture, matric potential and rainfall were measured between January 1, 2019 and February 28, 2023. Two monitoring stations were installed at each study site on the shoulder and at the toeslope positions. The study has revealed that the textural types of the study sites were silt loam, clay loam, and silt. The pasture had the most positive water balance, whereas the orchard had the most negative, especially in 2022 when trees were removed. The mean soil moisture values were 0.26, 0.21, and 0.21 for the pasture, ploughland and orchard for 10 cm, and 0.3, 0.22, and 0.22 for the pasture, ploughland and orchard for 30 cm, respectively. Moisture differences were relatively minor between the three sites, however, soil moisture dynamics were influenced by farming practices. Hence, site-specific mapping and analyses of factors responsible for efficient moisture retention are indispensable for the maximization of agricultural productivity and the optimization of the efficiency of ecosystem services. Our results could be used for the promotion of sustainable agricultural activities where loamy soils and subhumid continental climates prevail.