Table 1.
Summary Statistics of Variables
| (a) Socioeconomic variables | (b) Land cover type variables | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Variable (percent of population) | Mean | sd | Min. | Max. | Land cover type | Area over the state | Percent area over census tracts | |||
| Total percentage | Mean | sd | Min. | Max. | ||||||
| 18–64 years, with disability | 9.77 | 4.47 | 0.50 | 38.26 | Barren land | 0.07 | 0.14 | 0.44 | 0.00 | 4.67 |
| Low education (below high school diploma for age over 25) | 9.24 | 8.60 | 0.00 | 55.33 | Cultivated crops | 38.18 | 27.44 | 30.29 | 0.00 | 90.92 |
| Language | 1.41 | 2.86 | 0.00 | 26.76 | Deciduous crops | 1.34 | 1.84 | 3.66 | 0.00 | 37.04 |
| Over age 60 | 15.80 | 6.58 | 0.00 | 32.71 | Deciduous forest | 0.21 | 12.66 | 13.04 | 0.00 | 75.06 |
| Over age 60, living alone | 41.28 | 13.83 | 0.00 | 100.00 | Developed high intensity | 0.09 | 5.95 | 9.66 | 0.00 | 84.95 |
| Under poverty level | 11.91 | 8.66 | 0.00 | 52.66 | Developed open space | 2.11 | 8.32 | 7.57 | 0.00 | 43.13 |
| Race other than White | 12.53 | 14.66 | 0.00 | 87.25 | Developed low intensity | 0.76 | 24.12 | 23.06 | 0.02 | 82.85 |
| Emergent herbaceous wetlands | 1.93 | 0.68 | 1.51 | 0.00 | 13.40 | |||||
| Evergreen forest | 0.41 | 0.06 | 0.40 | 0.00 | 6.58 | |||||
| Grassland/Herbaceous | 52.08 | 15.48 | 21.92 | 0.00 | 97.65 | |||||
| Mixed forest | 0.14 | 0.04 | 0.15 | 0.00 | 1.80 | |||||
| Open water | 0.90 | 1.29 | 2.91 | 0.00 | 33.77 | |||||
| Pasture/Hay | 0.89 | 0.98 | 2.02 | 0.00 | 18.75 | |||||
| Shrub/Scrub | 0.13 | 0.04 | 0.17 | 0.00 | 2.22 | |||||
| Woody wetlands | 0.77 | 0.94 | 2.25 | 0.00 | 31.15 | |||||
Note. (a) Applied socioeconomic variables, as percentage of the vulnerable population within 532 census tracts of Nebraska. (b) Area percentage of 15 different NLCD 2016 land cover types (right) within Nebraska.