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Oviedo Vargas

Monitoring Fish Populations and Stream Habitat Quality for the National Park Service

800 532 Stroud Water Research Center

This project monitors biological conditions, water quality, habitat integrity, and fish at 37 sites in 10 national parks in the National Capital Region Network around Washington, D.C. The findings of…

Mitigating Agricultural Pollution of Fresh Water and Combating Climate Change by Restoring Soil Health

800 532 Stroud Water Research Center

Plowing, disking, synthetic fertilizers, and pesticides have damaged the health of agricultural soils, resulting in reduced rainfall infiltration and storage, increased stormwater and pollutant runoff, degraded streams, and contaminated groundwater.…

Long-Term Research in Environmental Biology: Trajectory for the Recovery of Stream Ecosystem Structure and Function During Reforestation

800 532 Stroud Water Research Center

Stream restoration in the United States is a multibillion-dollar industry, yet long-term monitoring of its effectiveness is virtually nonexistent. To fill this gap, the Stroud Center restored a portion of…

Evaluating the Risk for PFAS Contamination of Surface and Groundwater Through Application of Biosolids in Agroecosystems

800 532 Stroud Water Research Center

Per- and polyfluoroalkyl substances (PFASs) are a group of thousands of chemicals that are used in a wide range of industrial applications and represent a risk to human health. They…

Evaluating the Effects of Watershed-Scale Agricultural Best Management Practices on Water Quality

800 532 Stroud Water Research Center

In early 2020, stream bank fencing, forested buffers, and barnyard improvements were installed on Amish farms in Lancaster County, Pa. The farms are nested in a small watershed drained by…

Evaluating NCRN Data Quality, Revising and Updating Protocols, and Analyzing Long-Term Data

800 532 Stroud Water Research Center

The National Park Service National Capital Region Inventory and Monitoring Network (NCRN) has monitored stream water quality and quantity for more than 15 years in shallow streams located in 10…

Evaluating How Conventional, Conservation, and Organic Farming Management Practices Enhance Soil Health and Improve Water Quality

800 532 Stroud Water Research Center

This project investigates how different agricultural management practices influence water quality and soil health. Using Rodale Institute’s 37-year-old Farming Systems Trial and a recent transition to organic farming at the…

NASA DEVELOP logo and team member headshots.

Stroud Center and NASA Examine National Park Streams From Space

820 462 Stroud Water Research Center

Two science powerhouses are joining forces to discover water quality trends
in some of America’s favorite national parks.

Six Stroud Center staff members at a conference.

Sharing Our Science at the National Monitoring Conference

800 450 Stroud Water Research Center

Along with networking and learning state-of-the-art water quality monitoring techniques, we presented our research to hundreds of water quality specialists.

Diana Oviedo-Vargas downloading data from a sensor located in White Clay Creek to a field laptop.

Stroud Center Scientist to Serve as Nature Conservancy Trustee

800 450 Stroud Water Research Center

Diana Oviedo Vargas, Ph.D., is to serve as a trustee of the Nature Conservancy in Pennsylvania and Delaware, the conservancy recently announced.