Optimizing Water Table Depth under Controlled Drainage to Improve Trafficability
Authors: Phani Kaja, K., R. Sri Ranjan
Description: Trafficability is the capacity of soil to support the vehicle movement over it without affecting its structure. Trafficability primarily depends on composition of the soil, soil strength, plastic limit of soil, and moisture content. Controlled drainage systems are installed to lower the water table to the desired level to enable access by machinery unlike in free drainage where the water table could be lowered more than what is desirable. However, the optimum depth of the water table to be maintained for field operations is not fully understood. Soil moisture above the lower plastic limit affects soil trafficability. The relationship between soil moisture content corresponding to the lower plastic limit and the water table elevation will be used to determine the optimal water table depth for better trafficability. Soil data will be used to model different field soil profiles and optimal water table depths under those conditions will be presented.
Keywords: Trafficability, soil moisture characteristic curve, soil plasticity.
Technical field: Soil and Water Systems Engineering
Conference name: CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Session name: Biosystem Management VII - Environmental and Agronomic Systems
Citation: Phani Kaja, K., R. Sri Ranjan. 2015. Optimizing Water Table Depth under Controlled Drainage to Improve Trafficability. CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Publisher: Canadian Society for Bioengineering
Language 1: en
Rights: Canadian Society for Bioengineering