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Ventura County, California, is an agricultural powerhouse. In 2017, its revenues from agriculture were an estimated $2.1 billion. It also faces extraordinary population pressure, with nearly 450 people per square mile – about five times the average population density of the United States. Both...

In recent years, we’ve seen growing concerns about the availability and quality of water across the country. Drought, climate change, land use changes, and needs for additional water highlight these concerns. Stewardship of water resources is one of this country’s most important natural resource...

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from USDA’s rich science and research portfolio. As a major underground water source, the Ogallala Aquifer plays a key role in the economic vitality of vast stretches of the...

USDA researcher Ray Anderson discusses some of the concerns involved with increased groundwater irrigation for California almond trees, and higher salinity levels that impacts trees.

Drought conditions means California almond growers usually pump more groundwater for irrigation, yet lower groundwater levels could result in issues for trees and crops. Rod Bain reports. PARTICIPANTS: Rod Bain and USDA researcher Ray Anderson

How might higher salt levels in groundwater used for irrigation impact quantity of production from California almond trees? (Rod Bain and USDA researcher, Ray Anderson)

The bull trout in the McKenzie River on the Willamette National Forest have a survival story to tell, thanks to U.S. Forest Service stewardship of local rivers and fresh, healthy sources of groundwater. “We’re reintroducing the top predator back into the river ecosystem,” said Ray Rivera, the...

Every farmer needs adequate water for their crops. In some U.S. regions, farmers must rely on irrigation to have enough water for their crops. The 2017 Census of Agriculture reports farms with some form of irrigation accounted for 54% of the total value of crop sales (PDF, 121 KB). With water being...