The LTAR Network

We are a growing research network focused on developing national strategies for improved agricultural production. Our goal is to improve environmental quality and the well-being of farming communities while achieving increased agricultural production.

The LTAR Network is a partnership among 18 premier long-term research sites across the United States.

The Network has a multifaceted focus on satisfying increasing demand for agricultural commodities, protecting the quality of the environment, and enhancing the quality of life in rural areas and the Nation as a whole


2021 LTAR Annual Meeting at LMRB

The 2021 Annual LTAR Meeting will take place virtually and will be hosted by the USDA ARS National Sedimentation Laboratory ...
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NSF NEON Workshop Announcement

Complex Landscapes at Scale: Integrating our Understanding of Managed and Unmanaged Lands at Regional to Continental Scales Growing societal pressure ...
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2020 LTAR Annual Meeting at KBS

The 2020 Annual LTAR Meeting will take place virtually and will be hosted by the Kellogg Biological Station Location: Virtually at ...
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LTAR Tweets ( @USLTAR )

2021 ARS Discoveries Announcement: Research addressing important agroecosystem problems at 7 LTAR sites was recognized #USLTAR

3 exciting new papers from @TheJornada @NMSUaes @USDA_ARS :
@USLTAR common grazingland indicators:
Crop phenology classification via deep learning:
Heritage cattle landscape use via GPS collars:

Wind erosion is a critical problem in #rangeland ecosystems that we have not been able to measure adequately until now: the AERO model estimates effects of #climatechange and land management on erosion rates. @TheJornada @NMSUaes @USLTAR @USDA_ARS

New in @ESAApplications:

Predicting spatial-temporal patterns of diet quality and large herbivore performance using satellite time series

With #OpenData in @USDA's #AgDataCommons

#Rangelands #Grasslands #RemoteSensing

@USDA_ARS @USLTAR @Kearney_Sean_P

A nice shot of the @NEON_sci tower @TheJornada and here are @theAGU abstracts from this research site from @USLTER @USLTAR @CZCNet


We're thrilled to be participating in @theAGU's Fall Meeting once again this year! Tune in this week to see @NEON_sci's presentations, posters, and more. Check back here for event updates and highlights!
Learn more about NEON at #AGU21:

@LICOR_ENV @USLTAR @SchreinerMcGraw Tucker Prairie is a half hour east of Columbia. Details here:

We are able to use this site to compare with @USLTAR row crop experiments located an hour away. We are assessing capacity for carbon sequestration from non-cultivated prairie.

Welcome Dr. Sarah McCord @mccord_se to her role as a Research Ecologist with USDA ARS Jornada unit. Sarah develops computational approaches to use continental-scale, field monitoring and other datasets to understand ecosystem change in #rangelands. @USLTAR

A new preprint where I use deep learning models to track crop phenology in @PhenoCam images. Its tricky, and took a lot of trial and error the past 18 months to figure out. 1/2


This new soil moisture product will be useful for explaining patters in #rangeland production, phenology, and restoration datasets. Take a look @dataEcologist @phenophase @mccord_se @TheJornada @USLTAR @LDN2030

Noemi Vergopolan@NVergopolan

I am excited to announce SMAP-HydroBlocks:

The first #satellite-based surface #SoilMoisture dataset at 30-m resolution for the United States

Data is #OpenAccess and peer-review paper is available @ScientificData

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Long-term network research for the next agricultural revolution @USLTAR @USDA_ARS

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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.