Soil Infiltration Characteristics under Different Drilling Treatments in Hulunbuir Grassland

This study investigates the impact of different soil perforation techniques on the soil infiltration characteristics of the Hulunbuir with the objective of providing a scientific basis for the ecological restoration of degraded grasslands by improving the soil's physical structure. The core theme of this study is the significance of perforation technology in enhancing the soil's aeration and water permeability. This is achieved by increasing the soil porosity and reducing the bulk density, thereby promoting the retention of moisture and the development of plant root systems. This is crucial for enhancing the soil's water retention capacity, improving water use efficiency, and fostering the health and sustainability of grassland ecosystems. The experimental setup comprised three different perforation methods (no perforation, 10 cm×10 cm, 20 cm×20 cm) and three biomass types (high, medium, low). The double-ring infiltration field measurement method was utilised to conduct the soil infiltration experiments. The study's findings indicate that distinct perforation treatment methods and biomass types exert a significant influence on soil infiltration rates and cumulative infiltration volumes, with high biomass plots exhibiting higher initial infiltration rates and stable infiltration rates. The Kostiakov model demonstrated the most effective performance in fitting soil infiltration rates, providing a reliable model for predicting soil infiltration rates. The findings of our current study could offer vital theoretical and practical guidance for the ecological restoration of degraded grasslands, and could provide a scientific basis for water resource management and soil erosion control.