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Long Term Agricultural Research
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Our program, established in 1912, has identified science-based principles for management of land in support of agriculture and conservation. We have written thousands of articles, technical guides, books and book chapters, and manuals directly related to this topic and these are all available through our searchable bibliography.

Story map tells of the vegetation change on the Jornada 1915 ? 1998

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The Agriculture Research Service has selected ten existing, long-term research sites to formally link as a Long-Term Agro-Ecosystem Research (LTAR) network. The criteria for LTAR selection were 1) research productivity, 2) infrastructure capacity, 3) data richness, 4) data availability, 5) geographic coverage at various scales, 6) partnerships, and 7) institutional commitment. In February 2012, the Jornada Experimental Range was selected as one of this original cohort of ten sites. Materials we developed in response to selection criteria are: Introduction, Research Productivity, Infrastructure Capacity, Data Richness, Data Availability, Geographic Coverage, Partnerships, Institutional Commitment, Literature Cited.  Research activities for this LTAR network are being developed now.