Economic and Environmental Geology

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Table. 6.

Table. 6.

The number of operation of aggregate by permitted period, and remaining period from 2021

permitted period remaining period from 2021
year river land forest marine sum river land forest marine sum
≤1 8 63 4 16 91 69 36 3 108
1~≤2 64 4 69 16 40 15 71
2~≤4 1 28 15 15 58 5 41 46
4~≤6 10 22 16 47 36 16 52
6~≤8 2 19 22 13 13
8~≤10 1 63 64 5 6
10~≤15 30 30
15~≤20 27 27
20~≤25 8 8
25~≤30 3 3
>30 1 1
10 `167 196 47 420 90 171 34 296
Econ. Environ. Geol. 2021;54:581-94 https://doi.org/10.9719/EEG.2021.54.5.581
© 2021 Econ. Environ. Geol.