Table 5 Statistics on the geographical spatial distribution of TVs and ICH in the upper reaches of the YRB.
Geographical Factors | Classification | TVs | ICH | ||
|---|---|---|---|---|---|
Number/Count | Proportion/% | Number/Count | Proportion/% | ||
Elevation /m | 735 ~ 1588 | 61 | 0.23 | 78 | 0.41 |
1589 ~ 2326 | 74 | 0.28 | 58 | 0.31 | |
2327 ~ 3182 | 122 | 0.47 | 45 | 0.24 | |
3183 ~ 3996 | 5 | 0.02 | 8 | 0.04 | |
3997 ~ 6295 | 0 | 0.00 | 0 | 0.00 | |
Slope/(°) | 0 ~ 6 | 141 | 0.54 | 120 | 0.63 |
7 ~ 13 | 93 | 0.35 | 52 | 0.28 | |
14 ~ 20 | 22 | 0.08 | 17 | 0.09 | |
21 ~ 30 | 6 | 0.02 | 0 | 0.00 | |
31 ~ 90 | 0 | 0.00 | 0 | 0.00 | |
River/km | 0 ~ 5 | 143 | 0.55 | 80 | 0.42 |
6 ~ 10 | 38 | 0.15 | 36 | 0.19 | |
11 ~ 15 | 21 | 0.08 | 10 | 0.05 | |
16 ~ 20 | 12 | 0.05 | 19 | 0.10 | |
21 ~ 25 | 18 | 0.07 | 11 | 0.06 | |
