Document Archive
Legacy network documentation, proposals, and site summariesPast Documents
- LTAR Strategic Plan Full Text (pdf) – April, 2024
- LTAR Strategic Plan Summary (pdf) – October, 2023
- LTAR Glossy Booklet (pdf) – April, 2019
- LTAR Factsheet (pdf) – April, 2019
- Building the LTAR Data Portal (pdf) – January, 2016
- LTAR Shared Research Strategy (pdf) – September, 2015
- Common Observatory Meteorology Data Concept of Operations (pdf) – September, 2015
- ARS Site Contact Information (pdf) – March, 2013
- Request for Information (RFI) (pdf) – December, 2012
- Request for Information (RFI) (pdf) – September, 2011
LTAR Site Proposals and Executive Summaries
- Archbold-University of Florida
- Central Plains Experimental Range
- Central Mississippi River Basin
- Eastern Corn Belt
- Jornada Experimental Range
- Great Basin
- Gulf Atlantic Coastal Plain
- Lower Chesapeake Bay
- Lower Mississippi River Basin
- Southern Plains
- Kellogg Biological Station
- Northern Plains
- Platte River-High Plains Aquifer
- R.J. Cook Agronomy Farm
- Texas Gulf
- Upper Chesapeake Bay
- Upper Mississippi River Basin
- Walnut Gulch Experimental Watershed
ABOUT LTAR
The USDA Agricultural Research Service (ARS) Long-Term Agroecosystem Research network consists of 18 Federal and university agricultural research sites with an average of over 50 years of history. 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.