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Table 2 A pairwise comparison matrix for generating the relative weight of different factors for aquaculture potential in the Lake Tana basin

From: GIS modeling of potentially suitable sites for aquaculture development in the Lake Tana basin, Northwest Ethiopia

 

PD (ind/km2)

Con.Bhr

Pod.Exp

D.MC (km)

RD (Km/km2)

RP (km)

DW (%)

Socioeconomic and infrastructure

 PD (ind/km2)

1

6

3

6/4

2

6/5

28.6

 Con.Bhr

1/6

1

1/2

1/4

1/3

1/5

4.8

 Prod.Exp

1/3

2

1

1/2

2/3

2/5

9.5

 D.MC (km)

4/6

4

2

1

4/3

4/5

19.0

 RD (km/km2)

1/2

3

3/2

3/4

1

3/5

14.3

 RP (km)

5/6

5

5/2

5/4

5/3

1

23.8

 Consistency ratio (CR) = 0.0000

 

ARA (mm)

PRD (km/km2)

PPR (Km)

PWB (Km)

  

DW (%)

Water availability

 ARA (mm)

1

2/5

2/3

2

  

18.2

 PRD (km/km2)

5/2

1

5/3

5

  

45.5

 PPR (km)

3/2

3/5

1

3

  

27.3

 PWB (km)

1/2

1/5

1/3

1

  

9.0

 Consistency ratio (CR) = 0.0000

 

TAM (tones)

CrL

LU

   

DW (%)

Farm inputs and land use types

 TAM (tones)

1

7/3

7

   

63.6

 CrL

3/7

1

3

   

27.3

 LU

1/7

1/3

1

   

9.1

 Consistency ratio (CR) = 0.0000

 

pH

DO (mg/l)

Temp (°C)

   

DW (%)

Water quality

 pH

1

2

1/2

   

28.6

 DO (mg/l)

1/2

1

1/4

   

14.3

 Temp (°C)

2

4

1

   

57.1

 Consistency ratio (CR) = 0.0000

 

Soil texture (%)

Slope (%)

Soil pH

   

DW (%)

Soil quality

 Soil texture (%)

1

2

6

   

65.3

 Slope (%)

1/2

1

3

   

25.1

 Soil pH

1/6

1/3

1

   

9.6

 Consistency ratio (CR) = 0.02%

  1. PD population density (individual/km2), Con.bhr consumption behavior, Prod.exp production experience, D.MC distance to district market center, RD road density, RP road proximity, ARA annual rainfall amount, PRD perennial river density, PPR proximity to perennial river, PWB proximity to water bodies: lake and reservoirs, DO dissolved oxygen, Temp temperature, TAM total amount of manure form livestock (tones), CrL crop lands (suitability index), LU land use types, DW derived weight