EDGE is located at six grassland sites that encompass a range of ecosystems in the Central US - from desert grasslands to short-, mixed-, and tallgrass prairie. We envision EDGE as a research platform that will not only advance our understanding of patterns and mechanisms of ecosystem sensitivity to climate change, but also will benefit the broader scientific community. Identical infrastructure for manipulating growing season precipitation will be deployed at all sites. Within the relatively large treatment plots (36 m2), we will measure with comparable methods, a broad spectrum of ecological responses particularly related to the interaction between carbon fluxes (NPP, soil respiration) and species response traits, as well as environmental parameters that are critical for the integrated experiment-modeling framework, as well as for site-based analyses. By designing EDGE as a research platform open to the broader scientific community, with subplots in all replicates (n = 180 plots) set-aside for additional studies, and by making data available to the broader ecological community EDGE will have value beyond what we envision here.
Knowledge Network for Biocomplexity (KNB) Identifier
Data Policies: This dataset is released to the public and may be freely downloaded. Please keep the designated Contact person informed of any plans to use the dataset. Consultation or collaboration with the original investigators is strongly encouraged. Publications and data products that make use of the dataset must include proper acknowledgement of the Sevilleta LTER. Datasets must be cited as in the example provided. A copy of any publications using these data must be supplied to the Sevilleta LTER Information Manager. By downloading any data you implicitly acknowledge the LTER Data Policy (http://www.lternet.edu/data/netpolicy.html).
2012-08-01 - 2015-08-18
Location: The EDGE Black Grama site is located within Five Points Black Grama, just to the west of Black Grama Core site. Vegetation: The EDGE black grama site is dominated by black grama (Bouteloua eriopoda). Other prevalent grasses include Sporobolus contractus, S. cryptandrus, S. flexuosus, and Muhlenbergia arenicola., Location: The EDGE Blue Grama site is located on far east side of refuge approximately .5 km due west from the foothills of the Los Pinos Mountains. The study is also just northeast of the Blue Grama Core site. Soils: Sandy loam and sandy clay loam, Vegetation: Vegetation is characterized as Plains-Mesa Grassland, dominated by blue and black grama (Bouteloua gracilis and B. eriopoda) and sand muhly (Muhlenbergia arenicola).,
Collins, Scott (2015): Extreme Drought in Grassland Ecosystems (EDGE) Net Primary Production Quadrat Data at the Sevilleta National Wildlife Refuge, New Mexico (2012-present). Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/04b8c85ad240e175db4ae9575a90b407