Soil moisture study reveals key factors impacting water retention in arid regions.
The article explores how soil moisture levels are measured in different types of soil under arid conditions. By collecting surface samples and classifying them based on texture, the researchers found that sandy and loamy sand soils had the strongest correlation between in-situ field capacity and soil water content at 60 mbar of pressure. Sandy loam soil showed the highest correlation at 100 mbar. Overall, soils with more water-holding pores took longer to reach field capacity after heavy irrigation.