Page 57 - Fundamentals of Geomorphology

Sediment yield
2
(tonnes/km /yr)
1,000
500
100
50
10

142
142 59 25
59
25
100
100
444
444
30
30
31
131 31 133
131
133
1,738
1,738
66
17 66
17
110
256
256 110
930
930
210 3,000
210
3,000
1,438
1,438
232
232
67
67
286
286
113
113
290
290
150
150
28
28
3,228
3,228
17
17
18
18
154
154
Annual suspended 62
62
290 sediment discharge
(million tonnes)
Figure 2.4 (a) Sediment yield of the world’s chief drainage basins. Blank spaces indicate essentially no discharge to the
ocean. (b) Annual discharge of suspended sediment from large drainage basins of the world. The width of the arrows
corresponds to relative discharge. Numbers refer to average annual input in millions of tonnes. The direction of the
arrows does not indicate the direction of sediment movement.
Source: Adapted from Milliman and Meade (1983)