Table 1. Effects of anthropogenic activities on the quantity of freshwater 

 flow to estuaries. 



1 . Dams X XXX 



2. Diversions X XX 



3. Canals in uplands XXX X 



4. Drainage ditches in wetlands XXX X 



5. Deforestation XXX X 



6. Clearcutting X XX 



7. Road Construction XXX X 



8. Paving XXX X 



a 



An effect of dams may be either of these 



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