Soil respiration at maize fields in Horqin Sandy Land was studied to understand its patterns and what affects it. The researchers measured daily and seasonal changes in soil respiration rate and environmental factors. They found that soil respiration peaked during sunny days, with the highest rate in the summer. Soil temperature had a big impact on respiration rate, especially at 15 cm depth. The amount of roots in the soil also influenced soil respiration, showing a strong relationship.