Tony ]. Wilkinson
Figure 2.4a
Layout of an ancient canal system
that distributed water from a levee
crest channel in the northern
alluvium (Widell 2008)
Sites as recognised
on soil maps Canals
1 km
Figure 2.4b
Diagrammatic layout
showing the possible
distribution of lateral canals
and their associated irrigated
land (left) versus a single
longitudinal canal (right)
MAIN CHANNEL
Fields
Incised secondary
channel
Levee 5km
0
Canals
Longitudinal
canal
SECONDARY
CHANNEL
0