Study reveals changing soil moisture patterns impacting climate and agriculture.
Soil moisture in the Three Rivers Headwaters Region of China was studied to understand its impact on climate change. By analyzing data from different soil depths and combining it with satellite information, researchers found that soil moisture increases with depth, with the highest levels at 10-40 cm below the surface. Soil moisture is highest in the northwest and southeast regions, and lowest in the southwest and northeast. It varies seasonally, with higher levels in summer and lower in winter. The study also showed that soil moisture is influenced by temperature and precipitation, and has a positive correlation with evapotranspiration.