Table 2 Summary statistics of PV, NPV, and BS cover estimates of steppe types and field-based methods
From: Comparison of field- and satellite-based vegetation cover estimation methods
Cover type | Steppe type | Method | Mean | Median | Min | Max | Range | SD | CV |
|---|---|---|---|---|---|---|---|---|---|
PV | Typical steppe | PI | 35.0 | 35.6 | 11.1 | 63.3 | 52.2 | 15.4 | 0.440 |
SP25 | 34.4 | 34.6 | 9.5 | 58.0 | 48.5 | 13.5 | 0.392 | ||
SP49 | 33.9 | 31.2 | 7.3 | 58.6 | 51.3 | 13.6 | 0.401 | ||
SP100 | 33.4 | 30.6 | 7.7 | 57.3 | 49.6 | 13.7 | 0.410 | ||
Forest steppe | PI | 40.3 | 43.3 | 15.6 | 73.3 | 57.8 | 18.1 | 0.449 | |
SP25 | 39.9 | 41.6 | 21.6 | 56.8 | 35.2 | 10.1 | 0.253 | ||
SP49 | 38.5 | 40.0 | 18.4 | 57.6 | 39.2 | 11.6 | 0.301 | ||
SP100 | 37.5 | 37.7 | 18.1 | 62.9 | 44.8 | 12.9 | 0.344 | ||
Desert steppe | PI | 22.0 | 17.8 | 16.7 | 31.7 | 15.0 | 8.4 | 0.382 | |
SP25 | 36.6 | 29.6 | 23.5 | 56.8 | 33.3 | 17.7 | 0.484 | ||
SP49 | 34.7 | 26.1 | 22.5 | 55.5 | 33.0 | 18.1 | 0.522 | ||
SP100 | 34.0 | 23.9 | 22.9 | 55.1 | 32.2 | 18.3 | 0.538 | ||
NPV | Typical steppe | PI | 28.5 | 23.4 | 10.6 | 80.0 | 69.4 | 18.8 | 0.660 |
SP25 | 23.9 | 21.0 | 2.3 | 66.8 | 64.5 | 18.2 | 0.759 | ||
SP49 | 23.7 | 22.8 | 1.7 | 60.8 | 59.1 | 17.1 | 0.723 | ||
SP100 | 24.5 | 23.1 | 2.0 | 60.9 | 58.9 | 17.2 | 0.705 | ||
Forest steppe | PI | 28.2 | 30.0 | 0.0 | 70.0 | 70.0 | 23.5 | 0.833 | |
SP25 | 21.9 | 20.3 | 7.2 | 39.2 | 32.0 | 11.4 | 0.521 | ||
SP49 | 23.1 | 19.9 | 5.1 | 44.7 | 39.6 | 14.0 | 0.607 | ||
SP100 | 24.5 | 24.6 | 4.4 | 45.4 | 41.0 | 13.8 | 0.563 | ||
Desert steppe | PI | 12.0 | 14.4 | 6.7 | 15.0 | 8.3 | 4.6 | 0.385 | |
SP25 | 5.2 | 4.4 | 4.0 | 7.2 | 3.2 | 1.7 | 0.335 | ||
SP49 | 5.4 | 4.5 | 2.2 | 9.6 | 7.4 | 3.8 | 0.698 | ||
SP100 | 6.6 | 3.5 | 2.3 | 14.0 | 11.7 | 6.4 | 0.976 | ||
BS | Typical Steppe | PI | 36.5 | 34.4 | 3.3 | 60.0 | 56.7 | 16.0 | 0.439 |
SP25 | 41.7 | 38.6 | 11.2 | 69.3 | 58.1 | 17.6 | 0.421 | ||
SP49 | 42.3 | 38.9 | 13.5 | 70.0 | 56.5 | 16.7 | 0.394 | ||
SP100 | 42.1 | 39.0 | 14.0 | 69.8 | 55.8 | 16.3 | 0.388 | ||
Forest steppe | PI | 31.5 | 27.7 | 8.9 | 80.0 | 71.1 | 19.9 | 0.632 | |
SP25 | 38.2 | 39.2 | 21.5 | 59.6 | 38.1 | 11.6 | 0.303 | ||
SP49 | 38.4 | 37.3 | 22.1 | 56.7 | 34.6 | 11.0 | 0.286 | ||
SP100 | 38.0 | 35.1 | 23.1 | 54.6 | 31.5 | 10.6 | 0.280 | ||
Desert steppe | PI | 65.9 | 67.8 | 53.3 | 76.6 | 23.3 | 11.8 | 0.179 | |
SP25 | 58.2 | 63.2 | 38.8 | 72.5 | 33.7 | 17.4 | 0.299 | ||
SP49 | 59.9 | 64.3 | 42.3 | 73.0 | 30.7 | 15.8 | 0.264 | ||
SP100 | 59.4 | 62.1 | 42.6 | 73.6 | 31.0 | 15.7 | 0.264 |