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CORE (SIGNATURE) LONG-TERM STUDIES AND ASSOCIATED DATASETS |
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Study |
Responsible
(Original) PI |
Duration |
Core areas1 |
Dataset name2
(Variables measured) |
Dataset3 package |
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VEGETATION DYNAMICS |
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Vegetation maps |
Havstad
(Gibbens) |
1858, 1915, 1928,
1998 |
1 |
Vegetation maps (Dominant species or functional groups) |
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Permanent Chart Quadrat Data |
Havstad |
1915- |
3,5 |
Cover of individual shrubs & perennial grasses (Basal/canopy area, perimeter of individuals) |
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1915- |
3,5 |
Density of perennial forbs |
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Transect Plant Line Intercepts |
Anderson
(Cunningham) |
1982- |
1 |
Transect plant line intercepts - LT series (% cover) by species |
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East & West Boundary Fence Plant Line Intercepts |
Anderson
(Cunningham) |
1982-1992 |
1 |
East & west boundary fence plant line intercepts - % cover for 9 species |
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1986- |
1,3 |
East & west boundary fence plant line intercepts - % cover for all species |
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Spatial and Temporal Patterns of Net Primary Production in Chihuahuan Desert Ecosystems (15 locations) |
Peters
(Huenneke) |
1989- |
1 |
Net primary production quadrat data (Cover, height by plant or plant part) |
data |
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1989- |
1 |
Net primary production quadrat biomass data by species and season |
data |
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1989- |
1 |
Annual ANPP, SUMMARY |
data |
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1989- |
1 |
Net primary production reference harvest data (Height, cover, and dry weight by species) |
data |
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Anderson |
1996- |
5 |
Annual ground-based photos of 15 NPP locations |
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Perennial Plant Phenology on NPP Locations |
Peters
(Huenneke) |
1992- |
1 |
Plant phenology transect at NPP locations (Monthly phenological stage of select species) |
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Climate Change Experiment |
Sala
(Reichmann) |
2006- |
1,4 |
Soil water content in precipitation & nitrogren treatment plots at 2 depth profiles |
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2007 |
1,4 |
Plant cover in precipitation and nitrogen treatment plots by species |
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Climate Change Experiment: Response of mesquite and black grama to precipitation change |
Throop |
2007-2008 |
1,4 |
Photosynthetic rates for leaves from 5 precipitation treatments |
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2007-2008 |
1,4 |
Pre-dawn water potential for leaves from 5 precipitation treatments |
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Cross-scale study |
Peters |
2008- |
4 |
Conmod Pilot Study: Plant cover from plant line intercepts (Cover by species) |
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2008- |
4 |
Conmod Pilot Study: Biannual repeat photography of conmod plots |
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2008- |
4 |
Conmod Pilot Study: Quarterly BSNE sediment collection (Sediment weight collected at 2 heights) |
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2008- |
4 |
Conmod Pilot Study: Monthly bedload (Total dry weight, % ash weight) |
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CARBON AND NITROGEN |
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Termite Baits |
Anderson
(Whitford) |
1988-2000 |
2 |
Termite bait data (Loss of OM to termits) |
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LTER Fine Litter Decomposition Experiment (LIDET): Above- and belowground decomposition of litter and roots over time (cross-site study) |
Harmon |
1990-2002 |
2 |
LTER Fine Litter Decomposition Experiment (LIDET) (Mass loss & nutrient concentrations of leaf litter, roots, & dowels) |
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PLANT-ANIMAL INTERACTIONS |
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Livestock stocking rate |
Havstad |
1916- |
3 |
Livestock abundance by pasture totaled for the Jornada (Animal unit months for cattle, horses, & sheep) |
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Valentines Creosotebush Lagomorph Study: perennial grass response to shrub removal, and lagomorph and cattle exclusion through time |
Havstad (Valentine) |
1938- |
3 |
Line intercept data of long-term vegetation responses to shrub removal and lagomorph exclusion in a creosotebush community (Cover by species) |
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Multiple Stressor Experiment: to examine effects of one-time pulse of seasonal livestock overgrazing and shrub removal on grass:shrub transitions |
Havstad (Whitford) |
1996- |
3 |
Line-Point Intercept data on grazed & shrub removal plots (Cover by plant species) |
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Okin
(Virginia) |
1996- |
3 |
Annual small scale soil movement associated with mesquite shrubs & following shrub removal (Soil height at increasing distances from shrub center) |
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Anderson |
1997- |
3 |
Annual ground-based photos of ungrazed/grazed and shrub-removal/unremoved plots |
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Small Mammal Exclosure Study: To examine effects of exclusion of small mammals on plant species abundance through time |
Schooley
(Lightfoot) |
1995- |
5 |
SMES rabbit survey data (Species abundance) |
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1995- |
3 |
SMES vegetation quadrat data (Cover and height by species) |
data |
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1995- |
3 |
SMES Cryptogam Crust Data (Cover of crusts) |
data |
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1995- |
3 |
SMES Leaf Litter Data (Cover of litter) |
data |
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1995- |
5 |
SMES Rabbit Feces Data (Number of feces) |
data |
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1995- |
3 |
SMES Soil Surface Disturbance (Type, % cover, and vertical dimension of small mammal disturbance) |
data |
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1995- |
5 |
SMES termite casing data (Dimensions of casing ) |
data |
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1995-2005 |
3 |
SMES vegetation line intercept data (Species abundance & cover) |
data |
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1995-2007 |
5 |
SMES rodent trapping data (Species abundance) |
data |
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Ecotone study: to examine effects of small mammals on black grama recovery after disturbance across ecotones between black grama and mesquite |
Bestelmeyer
(Campanella) |
2003- |
5 |
Ecotone rodent trapping data (Species abundance) |
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2003- |
1 |
Ecotone plant biomass by functional group |
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2003- |
5 |
Ecotone rodent metrics (Species abundance, biomass, & energy) |
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AEOLIAN |
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Soil movement study across black grama-mesquite ecotones |
Havstad (Gibbens) |
1933- |
3 |
Height of soil surface along grassland-shrubland ecotones |
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Crust Evolution |
Okin
(Gillette) |
1995- |
3 |
Abrasion of crust at Scrape Location (Soil height & hardness) |
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1996- |
3 |
Monthly photos of soil surface at 3 Scrape Site tower locations (3 soil surface closeups & 1 site overview photo) |
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Sediment collectors (BSNEs) at NPP locations and other locations |
Okin
(Gillette) |
1998- |
3 |
Quarterly horizontal sand mass flux data (BSNEs) at 15 NPP locations and Geomet location (Dust weights at 5 heights) |
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Nutrient and Ecosystem impacts of Aeolian Transport (NEAT) experiment |
Okin |
2004- |
3 |
Horizontal sediment mass flux before & after the windy season from vegetation removal plots (Sediment weight at various heights) |
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Throop/
Archer
(Hewins) |
2008-2012 |
2,4 |
Effect of soil deposition on litter decomposition (mass loss & litter ash weight) |
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HYDROLOGY |
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Hydrology Natural Runoff Plots |
Anderson
(Ward) |
1982-1994 |
4 |
Hydrology natural runoff plots - runoff (Runoff depth, suspended sediment concentration, precipitation, deposited sediment, and % organic carbon) |
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1989-1990 |
3 |
Hydrology natural runoff plots plant cover by species |
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1988-1990 |
4 |
Hydrology plot surface runoff water chemistry (Concentration of dissolved ions) |
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Stock ponds |
Vivoni |
2001- |
4 |
Monthly surface water at instrumented stock ponds (Water height) |
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2001- |
4 |
Monthly repeat photography of instrumented stock ponds |
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Hydrometeorological Characterization of the Tromble Weir Watershed |
Vivoni
(Templeton) |
2010- |
3 |
Channel network flow at four locations in the Tromble Watershed (Water height & flow rate) |
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2010- |
3 |
Hydrological and energy surface and atmospheric fluxes in the Tromble Watershed (Wind speed, air temperature, atmospheric pressure, CO2 & H2O concentrations, & heat fluxes) |
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2010- |
3 |
Precipitation measured at four locations in the Tromble Watershed |
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2010- |
3 |
Soil moisture in the Tromble Watershed at 3 depths |
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2010- |
3 |
Soil temperature in the Tromble Watershed at 3 depths |
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CLIMATE, SOILS, AND ATMOSPHERE |
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USDA Jornada Experimental Range Climate Data |
Rango |
1914- |
3 |
USDA-NOAA Daily Climatological Data (Precipitation, max/min air temperature) |
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1914- |
3 |
USDA Monthly Summary Climatological Data (Precipitation, max/min air temperature) |
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1953-1979 |
3 |
USDA Monthly Total Pan Evaporation Data |
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JER Standard Gauge Precipitation Data |
Rango |
1915- |
3 |
JER standard gauge precipitation data |
data |
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Transect Soil Water Content |
Herrick
(Wierenga) |
1982- |
4 |
Transect soil water content at 5 depths to 150 cm |
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1982- |
4 |
Transect soil water content as neutron count data at 5 depths to 150 cm |
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LTER Weather Station Climate Data |
Rango |
1983- |
3 |
Daily summary climate data from LTER Weather Station (Wind Speed & direction, solar radiation, relative humidity, precipitation, air & soil temperature) |
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1983- |
3 |
Hourly summary climate data from LTER Weather Station (Wind Speed & direction, solar radiation, relative humidity, precipitation, air and soil temperature) |
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1983- |
3 |
Evaporation pan data (Jornada LTER) |
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1992- |
3 |
Dipstick rain gauge data - LTER Weather Station (Precipitation) |
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Atmospheric Deposition |
Rango
(Schlesinger) |
1983- |
4 |
Wetfall deposition chemistry data (Jornada LTER Weather Station) (NO3, NH4, Cl, SO4, Ca, Mg, Na, K, total N, & total P) |
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1983- |
4 |
Dryfall deposition chemistry data (Jornada LTER Weather Station) (NO3, NH4, Cl, SO4, Ca, Mg, Na, K, total N, & total P) |
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Monthly graduated rain gauge (GRG) precipitation at 15 NPP locations (LTER-II) |
Rango |
1989- |
3 |
Monthly graduated rain gauge (GRG) precipitation at 15 NPP locations (LTER-II) |
data |
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Tipping bucket rain gauge precipitation - NPP locations |
Rango |
1999- |
3 |
Precipitation: Tipping bucket rain gauge precipitation - NPP locations (LTER-III) (Timestamp for each 0.1 mm) |
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NPP Soil Water Content |
Duniway
(Virginia) |
1989- |
4 |
NPP soil water content to 3m depth |
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1989- |
4 |
NPP soil water content as neutron count data to 3m depth |
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Biodiversity precipitation |
Rango |
1996- |
3 |
Precipitation: Biodiversity tipping bucket rain gauge data - By Event (LTER-III) (Timestamp for each 0.1 mm) |
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1996- |
3 |
Biodiversity tipping bucket rain gauge data - Daily Summary (Precipitation) |
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GEOMORPHOLOGY |
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Maps of soil units |
Monger |
1918, 1963, 1980 |
6 |
Soil units |
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Desert Soils Project |
Monger
(Gile) |
1957-1972 |
6 |
Soils maps |
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Elevation maps |
Monger |
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6 |
Elevation |
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Landform and geomorphology maps |
Monger |
|
6 |
Landform and geomorphology |
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LAND-ATMOSPHERE INTERACTIONS |
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Energy Balance |
Rango |
1995- |
1,2 |
JORNEX vegetation transects (species & canopy height) |
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Carbon fluxes on eight US rangeland sites |
Havstad |
1996-2006 |
3 |
Jornada Bowen ratio data (Annual and monthly net ecosystem exchange of carbon; air temperature, concentrations of water vapor & CO2 in air; soil temperature, water content, bulk density, & heat flux) |
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Eddy flux tower data on creosotebush bajada location |
Tweedie |
2010- |
4 |
Meteorological data from eddy flux tower (Pressure, air temp, relative humidity, precip, wind speed & direction) |
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2010- |
1 |
Hourly phenology photos for determination of greenness (Digital photo) |
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MANAGEMENT PRACTICES |
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Shrub control treatments |
Havstad |
1912- |
3,5 |
Shrub control treatments |
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Livestock exclosures |
Havstad |
1912- |
3,5 |
Livestock exclosures |
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Social-ecological dynamics of rangelands of the Chihuahuan Desert |
Skaggs |
1936-1940 |
3 |
Historical vegetation maps of public grazing lands in southwestern New Mexico |
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Remote sensing assessment of land cover change in the Mesilla Valley, NM |
Buenemann
(Hestir) |
1985-2009 |
3 |
Land cover classification |
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IMAGERY |
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Ground-based photos |
Rango |
1912- |
1-5 |
Ground-based photos |
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Aerial photos |
Rango |
1936- |
1,3,5 |
Aerial photos |
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Landsat & NOAA AVHRR |
Rango |
1972- |
1,3,5 |
Landsat & NOAA AVHRR |
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UAV photos |
Rango |
2004- |
1,3,5 |
UAV photos |
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1 Core Areas: 1) primary production; 2) organic matter accumulation in surface layers; 3) disturbances; |
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4) inorganic inputs and movements of nutrients through soils; 5) populations selected to represent trophic structure |
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2 Datasets continue to be added to online catalog |
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3 Each dataset package includes metadata, data, and spatial information. Partial packages without the spatial component |
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may exist. Package creation and addition to online catalog is an active ongoing process. |
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