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Table 8 Assigned weighing indices for various parameters used for assessment of management quality (Kosmas et al. 1999; UNESCO – United Nations Educational: Scientific and Cultural Organization 1979; Vieira et al. 2015))

From: Study of desertification sensitivity in Talh region (Central Tunisia) using remote sensing, G.I.S. and the M.E.D.A.L.U.S. approach

Parameter

Description

Range

Weight

Cropland (land use)

low land use intensity

 

1

Medium land use intensity

 

1.5

high land use intensity

 

2

population density

 

< 10 inhabitants per square km

1.00

 

10–20 inhabitants per square km

1.33

 

20–50 inhabitants per square km

1.66

 

> 50 inhabitants per square km

2.00

Policy (conservation practices)

High

Complete: > 75% of area under protection

1

Moderate

Partial: 25–75% of area under protection

1.5

low

Incomplete: < 25% of area under protection

2

Overgrazing

Low

< 20 heads per square km

1.00

Moderate

20–60 heads per square km

1.33

High

60–100 heads per square km

1.66

Very high

> 100 heads per square km

2.00