Environmental change over two decades since dredging and excavation of the lower Boro River, Okavango Delta, Botswana
In order to increase surface outflow to meet human needs, the distal Boro channel-floodplain system was dredged, excavated and bunded between 1971 and 1974. The immediate impact of these measures was destruction of in-channel flora. After 20 years, the aquatic flora has recovered in the excavated channel. However, little recovery has occurred along the channel reach which was dredged. Ecological processes.
Journal of Biogeography
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