Table 8 Relative extent (%) of the natural vulnerability classes in the study area
From: Assessment of land degradation and implications on agricultural land in Qalyubia Governorate, Egypt
Mapping unit | Area acre | Relative extent % | |||||
|---|---|---|---|---|---|---|---|
Physical degradation | Chemical degradation | ||||||
Slight | Moderate | High | Slight | Moderate | High | ||
I | 861.39 | 0.2 | 18.0 | 81.8 | 88.5 | 11.4 | 0.1 |
SI | 1642.76 | 0.9 | 20.9 | 78.2 | 80.6 | 19.2 | 0.2 |
L | 2116.80 | 2.2 | 79.5 | 18.3 | 79.8 | 19.8 | 0.4 |
O.M | 20,913.82 | 1.3 | 75.6 | 23.1 | 1.6 | 80.1 | 18.3 |
O.B | 39,841.59 | 78.1 | 21.5 | 0.4 | 0.2 | 23.9 | 75.9 |
D.B | 70,893.74 | 83.9 | 16.0 | 0.1 | – | 15.1 | 84.9 |
T.B | 391.48 | – | 19.9 | 80.1 | – | 8.6 | 91.4 |
T | 9991.79 | 8.9 | 76.4 | 14.7 | 79.4 | 20.4 | 0.2 |