Long Term Agroecosystem Research Overview

Agriculture faces tremendous challenges in meeting multiple, diverse societal goals, including a safe and plentiful food supply, climate change adaptation/mitigation, supplying sources of bioenergy, improving water/air/soil quality, and maintaining biodiversity. The LTAR network enables long-term, trans-disciplinary science across farm resource regions to address these challenges. The goal of this research network is to ensure sustained crop and livestock production and ecosystem services from agroecosystems, and to forecast and verify the effects of environmental trends, public policies, and emerging technologies. Ultimately, LTAR is expected to provide a wide array of clients, partners, and stakeholders with four basic outcomes:
  1. Agroecosystem productivity is sustainably enhanced by the development and application of new technologies
  2. Mitigation and adaptation of agroecosystems to climate change is improved by more accurate predictions of resource responses to system drivers
  3. Stronger linkages to other long-term research networks improves conservation and environmental quality in agricultural landscapes
  4. The socio-economic viability of, and opportunities for, rural communities are enhanced through educational outreach by LTAR scientists and collaborators
For the fully interactive version of this LTAR data explorer visit https://ltar.nal.usda.gov.

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Datasets

40 datasets

Goodwater Creek Experimental Watershed Nutrient Water Quality Data

The data producers document the 20-yr-long research effort to study the transport of N and P to surface and groundwater in Goodwater Creek Experimental Watershed. They also document related efforts in nearby claypan watersheds and watersheds with contrasting soil and hydrologic conditions across the northern…

Long-term Agro-ecosystem Research Initiative

Mahantango Creek Experimental Watershed, Pennsylvania (Precipitation)

Data from a precipitation gauge network on the WE-38 Experimental Watershed. The U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS) Pasture Systems and Watershed Management Research Unit (PSWMRU) operates a precipitation gauge network on the WE-38 Experimental Watershed to support long-term intensive research on…

Long-term Agro-ecosystem Research Initiative

Mahantango Creek Experimental Watershed, Pennsylvania (Water Quality)

A long-term water quality database has been developed by the US Department of Agriculture (USDA) Agricultural Research Service (ARS) Pasture Systems and Watershed Management Research Unit to support water quality research within WE-38, a 7.3 km2 experimental subwatershed of Mahantango Creek Watershed located in east…

Long-term Agro-ecosystem Research Initiative