Table 4.
Region wise forest fragmentation in Nepal. Change percentage represented by ‘a’ means the highly inflated figure due to very small denominator.
| Fragmentation class (area in km2) | Eastern | Central | Western | Far western | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1930 | 1975 | 2000 | 2020 | 1930–2020% change | 1930 | 1975 | 2000 | 2020 | 1930–2020% change | 1930 | 1975 | 2000 | 2020 | 1930–2020% change | 1930 | 1975 | 2000 | 2020 | 1930–2020% change | |
| Patch | 0.01 | 69.68 | 333.42 | 93.36 | − 933,500.00 | 0.14 | 49.51 | 224.21 | 75.1 | − 53,542.86 | 0.000 | 22.21 | 192.38 | 23.4 | a | 0 | 15.71 | 215.33 | 18.99 | a |
| Edge | 297.17 | 863.34 | 1820.37 | 950.68 | − 219.91 | 322.23 | 1011.77 | 2802.83 | 1252.36 | − 288.65 | 219.920 | 463.55 | 1367.61 | 544.19 | − 147.45 | 247.23 | 486.95 | 1726.4 | 532.38 | − 115.34 |
| Perforated | 0.11 | 457.76 | 1360.58 | 423.75 | − 385,127.27 | 0.11 | 826.08 | 3304.97 | 706.05 | − 641,763.64 | 0.240 | 268.44 | 1649.26 | 271.11 | − 112,862.50 | 0.21 | 324.25 | 2088.15 | 292.29 | − 139,085.71 |
| Core1 | 15.89 | 162.51 | 8.48 | 177.85 | − 1019.26 | 4.28 | 133.75 | 22.79 | 186.38 | − 4254.67 | 13.200 | 59.21 | 14.89 | 77.71 | − 488.71 | 8.82 | 66.85 | 21.6 | 67.31 | − 663.15 |
| Core2 | 15.2 | 65.74 | 6.7 | 77.38 | − 409.08 | 8.83 | 40.92 | 18.22 | 66.08 | − 648.36 | 9.990 | 22.44 | 18 | 26.24 | − 162.66 | 15.31 | 28.42 | 22.24 | 37.96 | − 147.94 |
| Core3 | 4279.55 | 2465.92 | 252.14 | 1825.46 | 57.34 | 8331.55 | 5420.95 | 794.33 | 4468.89 | 46.36 | 4093.490 | 3326.18 | 675.62 | 2829.29 | 30.88 | 6432.07 | 4668.8 | 1112.8 | 4044.91 | 37.11 |
| Total | 4607.92 | 4084.94 | 3781.68 | 3548.48 | 22.99 | 8667.14 | 7482.98 | 7167.34 | 6754.86 | 22.06 | 4336.840 | 4162.02 | 3917.77 | 3771.95 | 13.03 | 6703.66 | 5590.97 | 5186.52 | 4993.85 | 25.51 |
aThe estimate is not reliable as forest cover within these categories were very small in 1930.