Impact of Land Management Practices on Runoff, Soil Loss and Infiltration Under Simulated Rainfall

Junaid N. Khan; Raouf Aslam; Asima Jillani

doi:10.52151/jae2019561.1677

Authors

Junaid N. Khan Department of Soil and Water Conservation Engineering, College of Agricultural Engineering and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Author
Raouf Aslam Department of Soil and Water Conservation Engineering, College of Agricultural Engineering and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Author
Asima Jillani Department of Soil and Water Conservation Engineering, College of Agricultural Engineering and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Author

DOI:

https://doi.org/10.52151/jae2019561.1677

Keywords:

Runoff, infiltration, soil loss, tillage, perennial vegetation, urban environment, simulation

Abstract

A laboratory study was conducted to quantify the effects of various land management practices on runoff, soil loss and infiltration under simulated rainfall conditions. A prototype rainfall simulator was designed and tested in the laboratory to simulate rainfall at 100 mm.h-1 intensity over different land management practices. The effect of five land management practices on runoff, infiltration and soil loss were evaluated for a set of rainfall intensity (100 mm.h-1), rainfall duration (15 min) and raindrop size/ pore size of the nozzle (3.5 mm). The considered management practices were intense tillage land cover, zero or no-tillage land cover, minimum tillage land cover, perennial grass system and urban environment. Perennial grasses were found to be the best management practices to minimize the surface runoff and soil loss with increase in infiltration rate. Experimental results showed that perennial vegetation produced minimum runoff (0.2 l), very small soil loss (4.99 kg.ha-1) and maximum infiltration rate (117.67 mm.h-1), whereas urban environment (concrete surface) produced maximum runoff (3.7 l), minimum infiltration rate (0.1 mm.h-1) and minimum sediment loss (0.08 kg.ha-1).

Author Biographies

Junaid N. Khan, Department of Soil and Water Conservation Engineering, College of Agricultural Engineering and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir

Professor and Head
Raouf Aslam, Department of Soil and Water Conservation Engineering, College of Agricultural Engineering and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir

Research Scholar
Asima Jillani, Department of Soil and Water Conservation Engineering, College of Agricultural Engineering and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir

Senior Research Fellow

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