Fig 1.
Experimental equipment.
Table 1.
Average rainfall intensity of each experiment (mm/h).
Fig 2.
Measurement of the stain diameters based on the crossing method (75 mm/h).
Fig 3.
Raindrop diameter vs. frequency and the relationship between the accumulated volume and raindrop diameters.
Fig 4.
Location of the study site.
Fig 5.
Time-series process of surface flow.
Fig 6.
Time-series process of groundwater flow.
Fig 7.
Time-series nitrate concentration in surface water.
Fig 8.
Time-series nitrate concentration in groundwater.
Fig 9.
Time-series nitrate concentration in groundwater with fertilization.
Fig 10.
Relationship between nitrate concentrations and groundwater runoff.
Fig 11.
Time-series nitrate concentration and flow of groundwater with no fertilization.
Fig 12.
Nitrate residues in each layer of experimental soil.
Table 2.
Distribution of NO3-N residues in the soil for the non-uniform soil layer.