Water Resources Research Act Program

Details for Project ID MI_2025_Dong

Assessing the effects of reservoir tillage on runoff and deep percolation in irrigated fields

Institute: Michigan
Year Established: 2025 Start Date: 2026-01-01 End Date: 2026-12-31
Total Federal Funds: $10,000 Total Non-Federal Funds: $10,000

Principal Investigators: Younsuk Dong

Project Summary: This project addresses Michigan's increasing weather variability, which has led to fluctuating temperatures, inconsistent precipitation, and intense rainfall events. These changes contribute to increased surface runoff, soil erosion, and nutrient loss, making water management more challenging for farmers. Reservoir tillage, a practice that retains water and nutrients by creating small reservoirs in fields, has shown promise in reducing runoff and improving resource efficiency. In 2024, the MSU Irrigation Lab evaluated reservoir tillage in an irrigated potato field, demonstrating its potential to enhance water retention and reduce runoff. To further understand its impacts, this study will use HYDRUS 3D modeling software to simulate water flow under varying weather conditions and soil types. Using field data from soil moisture sensors, the model will be calibrated and validated. The project aims to develop optimal irrigation strategies that minimize runoff and enhance deep percolation, promoting sustainable water management in Michigan's agricultural systems.