Rainfall scarcity and variability present serious challenges to water security for many rural communities throughout the world's drylands. Sand dams--weirs built across ephemeral or seasonal rivers--provide an appropriate water harvesting and storage option for many regions. The structures quickly fill with sediment during rainy season flow events and store water...
"Gnat Creek heir, constructed with federal funds and was completed in October 1955. Primary objectives were to quantitatively study fail chinook and silver salmon to: (1) determine the survival, timing, and size of juvenile salmonids resulting from natural spawning; (2) measure the survival of hatchery eared fingerlings and yearlings; (3)...