Farmers in Uttarakhand face worsening soil erosion and runoff, threatening food security.
In Uttarakhand, India, different types of land (like sugarcane fields and fallow land) were studied to see how they affect runoff and soil erosion. Researchers looked at runoff, sediment, and rainfall data from twelve plots with varying slopes. They found that sugarcane plots had the highest runoff and sediment, followed by maize, black gram, and fallow land. Rainfall influenced runoff, but runoff had a stronger impact on sediment. The more it rained, the more runoff and sediment were produced. The amount of rain explained between 43.5% to 82% of the runoff. Even though the plots exceeded the soil erosion limit, sugarcane fields showed the highest erosion levels. Interestingly, the slope of the land didn't affect runoff or sediment, but the infiltration rate did. Surprisingly, the soil's moisture from the day before didn't have a big effect on the water runoff.