Table 3 Agro-ecological conditions of the study area (retrieved from CAID/ DIAU and Inogwabini²⁴.

Latitude (South)

3° 30 to 4° 51′32

2°38′

2°30′

3° to 4°

1°37′8.85"S and 2°29′5.82"S

1°55′35.13"S and 2°16′55.40"S

Longitude (East)

27° 45 to 29° 14′10

28°40′

28°30′

28°25′29′′

29° 5′24.23"E and

28°34′15.91"E

29° 6′′′11.65"E and

29° 1′28.48"E

Area (km²)

15,789

1800

1960

11,172

4197

280.45

Altitude (m)

750 to 1700

1000 to 2000

1420 to 3,200

670 to 1800

788 to 3035

1439 to 2233

Climate type

Humid wet and dry tropical

Humid wet tropical

Humid wet tropical

Equatorial

Humid wet tropical

Humid wet tropical

Dominant soil unity

Acrisols and Cambisols

Ferralsols, Cambisols and Nitisols

Ferralsols and Nitisols

Acrisols and Cambisols

Haplic Acrisols, Dystric Cambisols and Haplic Nitisols, Humid Ferralsols

Gleyic Solonchaks, nitisols and Humid Ferralsols

Mean T (°C)

23.54

17–20

22.6

21–37

18–22 °C

17–30 °C

Mean Annual P(mm)

1704

900 to 1500

1572

1650

1300-2000

1,540

Estimated Population (2019)

1,093,926

1,509,175

868,616

843,636

933,181

320,009

DP (Hab.Km^− 2)

69.3

838.4

443.6

75.5

184,6

1032,3

AEZ*

Low and high altitude

Medium to high altitude

Medium to high altitude

Low and high altitude

Low, Medium to High,

Medium to High