Author Description

Excerpt from Preliminary Study of Watershed Management and Water Yields of the Upper Gila River Soil erosion is an equally important upper Gila prob lem. Large areas of the watershed lands have been gullied and about acres of the irrigated valleys have been come pletoly lost. This destructive process continues to deplete the forage and agricultural productivity of the area and is affecting the regime of the river. Allied to the problem of erosion itself is that of reservoir sedimentation. Erosion products are accumulating in the San Carlos reservoir so rapid ly that its effective Operation may extend only about forty five years. An equally serious effect of sedimentation is that it causes increasing exposure of stored water with consequent high evaporation losses. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.