Table 1 Result of the slope steepness and gully intensities of the Nanka and Ajali Formations in the study area
Nanka Formation | Ajali Format | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Location of gully | Slope °/0 | Description (Ojukwu 2018) | Range of elevation (m) | Average depth(m) | Average width(m) | Lateral extent (m) | Degree of intensity | Location of gully | Slope °/0 | Description (Ojukwu 2018) | Range of elevation (m) | Average depth(m) | Average width(m) | Lateral extent (m) | Degree of intensity |
Ekwolobia 1 | 8.6 | Strong slope | 250 < 350 | 64 | 39 | 550 | High | Nsukka 1 | 34.8 | Extreme slope | > 450 | 70 | 117 | > 1000 | Very high |
Ekwolobia 2 | 35.3 | Steep slope | 250 < 350 | 40 | 60 | 650 | High | Nsukka 2 | 29.6 | Extreme slope | 250 < 350 | 24 | 164 | 760 | High |
Ekwolobia 3 | 37.2 | Steep slope | 350 < 450 | 36 | 28 | 730 | Very high | Nkpologu | 10.9 | Strong slope | < 250 | 69 | 60 | 840 | High |
Nanka 1 | 45.6 | Very steep slope | > 450 | 90 | 170 | > 1000 | High | Ovoko 1 | 39.8 | Steep slope | 350 < 450 | 36 | 200 | > 1000 | Moderate |
Nanka 2 | 28.3 | Extreme slope | 350 < 450 | 28 | 73 | > 1100 | Very high | Ovoko 2 | 42.8 | Steep slope | > 450 | 80 | 211 | > 1000 | High |
Nanka 3 | 36.4 | Steep slope | 250 < 350 | 78 | 86 | > 1000 | High | Ohodo 1 | 46.4 | Very steep slope | 350 < 450 | 110 | 86 | > 1000 | Moderate |
Agulu 1 | 47.6 | Very steep slope | > 450 | 112 | 700 | > 1500 | Very high | Ohodo 2 | 23.7 | Very steep slope | > 450 | 96 | 80 | > 1000 | Moderate |
Agulu 2 | 41.2 | Steep slope | > 450 | 80 | 200 | > 1200 | Very high | Lijja | 28.6 | Extreme slope | 250 < 350 | 60 | 36 | > 1000 | Moderate |
Alor 1 | 16.4 | Strong slope | 250 < 350 | 110 | 64 | > 1100 | Moderate | Opi 1 | 31.5 | Extreme slope | 350 < 450 | 73 | 80 | > 1000 | Moderate |
Alor 2 | 26.8 | Extreme slope | 250 < 350 | 64 | 86 | > 1200 | Moderate | ||||||||