Water balance of Mediterranean karst soil in Bosnia and Herzegovina as a water conservation and erosion control factor

Figures & data

Figure 1 Location of study site.

Figure 2 Sketch of Dubljani agro-hydrological station.

Figure 3 Stratigraphy of installed lysimeters.

Table 1 Drainage runoff for 6 lysimeters with different soil depths

Hydrological year	Soil conditions in lysimeters[h = soil depth (m)]	Input	Output
		Precipitation (mm)	Drainage runoff (mm)
1st hydrological year	No. 1 h = 1.3		514
	No. 2 h = 1.3		494
	No. 3 h = 1.0		555
	No. 4 h = 0.5	1512	661
	No. 5 h = 0.3		754
	No. 6 h = 0.0		1158
2nd hydrological year	No. 1 h = 1.3		445
	No. 2 h = 1.3		556
	No. 3 h = 1.0		430
	No. 4 h = 0.5	1146	588
	No. 5 h = 0.3		665
	No. 6 h = 0.0		833

Figure 4 Coefficient of drainage runoff – relationship between drainage runoff and depth of soil in the lysimeters.

Table 2 Surface runoff and soil erosion for bare and covered soil at inclinations of 1%, 5% and 10%

	Surface runoff (L m^−2)		Soil erosion (t ha^−1)
Inclination	Bare soil	Covered soil	Bare soil	Covered soil
	1st hydrological year
1%	127	54	2.0	0.9
5%	176	120	4.3	1.3
10%	187	89	5.3	1.4
	2nd hydrological year
1%	151	21	0.9	0.04
5%	164	67	1.9	0.06
10%	204	85	2.5	0.11

Figure 5 Surface runoff during 2 hydrological years for bare and covered soil at (a) 1%, (b) 5% and (c) 10% inclinations.

Figure 6 Soil erosion during 2 hydrological years for bare and covered soil at (a) 1%, (b) 5% and (c) 10% inclinations.

Table 3 Coefficient of surface runoff at different inclinations (18 months)

		Bare soil		Covered soil
Inclination	Precipitation (mm)	Surface runoff(mm)	Coefficient of surface runoff	Surface runoff(mm)	Coefficient of surface runoff
1%		257	0.13	76	0.04
5%	1938	322	0.17	187	0.10
10%		391	0.20	173	0.09