Sub zone

Space

Water way length

Fatoral licence

Floodgating amount

Flood gating grade

Factoral licence

Flood gating amount

Flood gating grade

1

0.47

Relatively low

4

0.36

Relatively low

4

2

0.69

Relatively high

1

0.65

Relatively high

1

3

0.52

Middle

3

0.49

Middle

3

4

0.51

Middle

2

0.44

middle

2