Model Factors (Vulnerability Parameters)

Erosion Vulnerability

Low

Medium

High

1)

L

L1

L2

L3

Geological formations prone to erosion (Lithology)

Limestones, dolomites, phyllite, etc.

Flysch, schist, marl, sandstone, conglomerate, grauwacke, etc

Alluvial, clastic sediments, etc.

2)

S

S1

S2

S3

Relief gradient (Slopes)

S £ 12%

12% < S £ 35%

S > 35%

3a)

Fs

F1

F2

F3

Hydrographic Frequency

F £ 0.62 km−2

0.62 < F £ 1.09 km−2

F > 1.09 km−2

3b)

Dd

D1

D2

D3

Hydrographic Density

D £ 0.63 km/km2

0.63 < D £ 0.95 km/km2

D > 0.95 km/km2

3)

T

T1

T2

T3

Hydrographic Texture

Combinations of:

F1 and D1, D2

F2 and D1

Combinations of:

F1 and D3,

F2 and D2

F3 and D1

Combinations of:

F2 and D3

F3 and D2

F3 and D3

Triggering Factor

Erosion Influence

Low

Medium

High

4)

R

R1

R2

R3

Rainfall

R £ 700 mm

700 < R £ 900 mm

R > 900 mm

Competitive Factor

Erosion Containment

Low

Medium

High

5)

C

C1

C2

C3

Vegetation cover (Land cover)

Sparse bushes, pasture lands and areas without vegetation

Various cultivations

Forests