0 an area of high land from which rivers flow in different directions into different basins. -- đường phân nước
However, separate analyses were also made for eastern and western watersheds to check the consistency of patterns.
The archaeological research design involved mapping and testpitting residential structures on transects established in six watersheds.
A site may be made up of multiple communities, watersheds or clusters of smaller units.
Even adjacent watersheds such as these may have greatly diverging values under similar uses.
The reason for wider seasonal swings in valleys was that the population of able-bodied individuals was less numerous than on watersheds.
The best candidates for study are lakes in watersheds that were not densely settled and that lie in level terrain.
The differences in species associations between the eastern and western watersheds indicate that they support d ifferent ecological p rocesses.
The study watersheds are completely covered with primary or mature secondary forests.
