The landscape would be dotted with ponds and lakes, and rivers would be allowed to follow their natural course, with trees along their banks and on the slopes of the watersheds for flood and erosion control.
(The landscape; would be dotted; with ponds and lakes) (rivers; would be allowed; ) (rivers; to follow; their natural course)
The landscape rivers rivers
would be dotted would be allowed to follow
with ponds and lakes
their natural course