Flood-plains Sentence Examples

Along the flood-plains of the larger rivers are fertile " bottomlands," but the ruggedness of the plateau country as a whole has retarded the development of the state, much of which is still sparsely populated.

The alluvial lands include the river flood plains.

These flood plains form collectively what is known as the alluvial region, which extends in a broad belt down the Mississippi, from the mouth of the Ohio to the Gulf of Mexico, and up the Ouachita and its branches and the Red river to and beyond the limits of the state.

This is especially true of the flood plains where the annual inundations prevent the formation of humus and retard forest growth.

Later when the ice retreated farther and the unloaded streams returned to their earlier degrading habit, they more or less completely scoured out the valley deposits, the remains of which are now seen in terraces on either side of the present flood plains.

The best explanation suggested for bess is that, during certain phases of the glacial period, it was carried as dust by the winds from the flood plains of aggrading rivers, and slowly deposited on the neighboring grass-covered plains.

Some of the bess is thought to have been derived by the wind from the surface of the drift soon after the retreat of the ice, before vegetation got a foothold upon the new-made deposit; but a large part of the bess, especially that associated with the main valleys, appears to have been blown up on to the bluffs of the valleys from the flood plains below.

It is evident from the foregoing remarks, that while even the smallest stream may make deposits of alluvial character it is in the flood-plains and deltas of large rivers that the great alluvial deposits are to be found.

These flood plains are sometimes of great extent.

Worldwide, some 30% of the best croplands lie on flood plains and are vulnerable to flooding.

The alluvial flood plains in the Gulf region and the south east suited pines and swamp cypress.

Fertile alluvial flood plains have been cleared for agriculture, making alluvial forest a threatened habitat at a European scale.

They all carve deep gorges through the mountains before spreading into wide flood plains in the lowlands.

Large areas of these great river plains are annually flooded, the flood-plains of the Amazon extending nearly across the whole country and comprising thousands of square miles.