SOIL AND WATER LOSS CHARACTERISTICS OF PEANUT IN DIFFERENT GROWTH STAGES ON GENTLE PURPLE SOIL SLOPES

The runoff and sediment characteristics during different growth periods in peanut were explored to provide a theoretical basis for improving the soil erosion of land cultivated with peanut. The runoff and sand production of slopes cultivated with peanuts were evaluated using artificial rainfall simulation tests in the field with three rainfall intensities (60, 90, and 120 mm/h) during four peanut growth periods (hare land stage, seeding stage, bearing pod stage, and pot mature stage). The results indicated that the bare land stage was the most prone to runoff and exhibited the most severe surface soil loss, whereas the bearing pod stage and pot mature stage demonstrated the best water storage and soil conservation benefits, The sediment reduction benefit of peanuts is better than the runoff reduction benefit, Rainstorms will weaken the soil and water storage capacity of peanuts.