Jornada Basin LTER Research

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soil datasets

Displaying 1 - 25 of 41 Datasets


File description including attribute definitions: data_Jornada_122001_crust_evolution_scrape_site_abrasion
Original investigator: Dale A Gillette
Data contact: Greg Okin
Duration: 1995 - ongoing
Dataset ID: 210122001
Abstract:

Distance of crust surface to a crossbar set into the soil. Three "torvane" measurements that measure the torque needed to break the crust is also recorded. These measurements are made monthly near each of three monitoring towers (East, Middle, West) on the Scrape Site.




Download data: File nh3vol88.dat
File description including attribute definitions: data_JornadaStudy_393_ammonia_volitalization_1988
Original investigator: William H Schlesinger
Data contact: John Anderson
Duration: 1988 - 1988
Dataset ID: 210393001
Abstract:

Ammonia volatilization was measured at three sites in the Chihuahuan Desert of southern New Mexico, U.S.A. In dry soils, ammonia volatilization ranged from 9 to 11 micrograms of nitrogen per square meter per day, but rates increased to 95 micrograms of nitrogen per square meter per day in a shrubland site after an experimental addition of water. Ammonia volatilization also increased with experimental additions of NH4Cl and decreased with additions of sucrose. Competition by nitrifiers for available NH4+ had little effect on NH3 volatilization: N-Serve, added to inhibit nitrification, decreased NH3 volatilization in a grassland site and had little effect at other sites. We suggest that NH3 volatilization is controlled by the rate of mineralization of NH4+ from soil organic matter, and mineralization is stimulated by rainfall. Overall rates of NH3 volatilization from undisturbed desert ecosystems appear to be much lower than those reported for rangeland and agricultural soils.

The data set shows ammonia volatilization from grassland, cresotebush, and playa habitats in response to a variety of experimental treatments chosen to elucidate the processes controlling the... more




File description including attribute definitions: data_Jornada_308004_conmod_pilot_bsne
Original investigator: Greg Okin
Data contact: Greg Okin
Duration: 2008 - ongoing
Dataset ID: 210308004
Abstract:

    There are 3 sites for this study:  Gravelly Ridges, Aeolian, and Dona Ana.  Within each site,
    there are 8 plots.  The plots are 8x8 meters and have an 8x8 buffer zone on both sides of the
    plot (up and down).  There are four BSNE stands for each plot, 2 in each of the 2 buffer zones
    (8 collectors per plot).  Each stand contains 2 BSNE collectors with the collection opening at
    10cm and 30cm height and an opening of 2 cm wide and 5 cm height.  These BSNE collectors are in
    a fixed position pointing into the direction of the prevailing wind, which corresponds to the
    plot alignment.  The collectors in the upwind buffer are facing away from the plot and the
    collectors in the downwind buffer are facing into the plot.  The idea is the upwind BSNEs
    measure the amount of dust entering the plot, and the downwind BSNEs measure the amount of dust
    moving off the plot.  This provides a measure of the effectiveness of the plot obstructions to
    wind blown dust.  It is important the BSNEs are fixed in an orientation that points across the
    full length of the plot.
 




File description including attribute definitions: photos_Jornada_308005_conmod_pilot
Original investigator: Jeff Herrick
Data contact: Jeff Herrick
Duration: 2008 - ongoing
Dataset ID: 210308005
Abstract:

    Repeat digital groundbased photos are taken once to twice a year to document plant litter and
    soil deposition or removal by wind and water transport on ten microplots located on each of the
    8 plots at each of the Aeolian, Dona Ana, and Gravelly Ridges sites. Five photos are taken of
    each microplot: One overhead (from directly over the microplot) and 4 lateral views at ground
    level of the microplot from each cardinal direction.

   Digital filenames are fully descriptive of the site, plot, microplot, photo view, and date taken.
   Photo filename structure:
      Example: A1-1E_20101109_IMG_1006368.jpg
               12-34_55556677_88888888888.jpg
         Where 1 = site: A=Aeolian: D=Dona Ana; G=Gravelly Ridges
               2 = plot (1-8)
               3 = microplot (1-10)
               4= photo view (O=overview; E=looking east; N=looking north; S=looking south; W=looking west
               5-6-7 = year month day of photo
               8 = original image number assigned by camera




File description including attribute definitions: data_JornadaStudy_394_mesquite_deep_soil _saturation_extract
Original investigator: Ross Virginia
Data contact: John Anderson
Duration: 1986 - 1986
Dataset ID: 210394005
Abstract:

*We have hypothesized that large rhizobial population densities can occur at considerable depths in woody legume systems where deep moisture also occurs. However, associated with deep soil environments are low concentrations of soil nutrients that might affect nodulation and also limit survival of free-living rhizobia. The objectives of this study were to (1) determine if results from a previous study of a mesquite woodland utilizing groundwater in the Californian Sonoran desert were generizable to mesquite systems in other deserts where root depth varied with ecosystem type and (2) examine possible relationships of soil properties and host-plant phenology to rhizobial concentrations. Data set contains analyses for SO4, sodium, calcium, manganese, sodium-absorption-ration, total cations, electrical conductivity, pH, saturation percentage, total carbon, inorganic carbon, organic carbon, and gravimetric soil moisture.




Download data: File mcmicron.dat
File description including attribute definitions: data_JornadaStudy_394_mesquite_deep_soil_micronutrient
Original investigator: Ross Virginia
Data contact: John Anderson
Duration: 1986 - 1986
Dataset ID: 210394002
Abstract:

Soil cores were collected under mesquite (Prosopis glandulosa) trees at playa, wash, sand dune, and grassland sites on the Jornada LTER site to depths of 15, 9, 7, and 4 m. Soil cores (to 4 m) were also taken under creosote bush (Larrea tridentata) near the wash site. Soils were extracted and analyzed for micronutrients, Zn, Cu, Fe, and Mn.




Download data: File mcwsf86.dat
File description including attribute definitions: data_JornadaStudy_394_mesquite_deep_soil_nutrients
Original investigator: Ross Virginia
Data contact: John Anderson
Duration: 1986 - 1986
Dataset ID: 210394004
Abstract:

*We have hypothesized that large rhizobial population densities can occur at considerable depths in woody legume systems where deep moisture also occurs. However, associated with deep soil environments are low concentrations of soil nutrients that might affect nodulation and also limit survival of free-living rhizobia. The objectives of this study were to (1) determine if results from a previous study of a mesquite woodland utilizing groundwater in the Californian Sonoran desert were generizable to mesquite systems in other deserts where root depth varied with ecosystem type and (2) examine possible relationships of soil properties and host-plant phenology to rhizobial concentrations. Data set contains total nitrogen, total phosphorous,NH4-N, NO3-N, PO4-P, percent moisture, total roots, tap roots, fine roots, vesicular arbuscular mycorrhiza, rhizobia Most Probable Number, and Rhizobia log (1+MPN).




Download data: File mcnmp.dat
File description including attribute definitions: data_JornadaStudy_394_mesquite_deep_soil_n_mineralization
Original investigator: Ross Virginia
Data contact: John Anderson
Duration: 1986 - 1986
Dataset ID: 210394003
Abstract:

Soil cores collected under mesquite (Prosopis glandulosa) trees at several sites and under Larrea at one site at the Jornada LTER were incubated to determine the N-mineralization potential.




Download data: File deepmite.dat
File description including attribute definitions: data_JornadaStudy_394_mesquite_deep_soil_microarthropod
Original investigator: Ross Virginia
Data contact: John Anderson
Duration: 1986 - 1986
Dataset ID: 210394001
Abstract:

**We addressed the question, are microarthropod assemblages present in soils throughout the rhizosphere of a deep-rooted desert plant? If microarthropods are present, what is the taxonomic and functional structure of that assemblage? The presence of a generalist microarthropod assemblage would suggest functional relationships among deep soil biota similar to the relationships documented in shallow soils. Data set consists of microarthropods and microarthropod numbers found at different soil depths associated with four mesquite ecosystems (playa, coppice dune, arroyo, and grassland).




File description including attribute definitions: data_JornadaStudy_385_fluffgrass_rhizosphere_n_mineralization
Original investigator: Solange I Silva
Data contact: John Anderson
Duration: 1986 - 1986
Dataset ID: 210385002
Abstract:

Nitrogen mineralization potential of soil rhizosphere of Erioneuron
pulchellum from Silva\'s dissertation research plots. Twenty 6 x 6 m
plots were established with a 3 m buffer between plots. Five plots were
randomly assigned to one of four treatments: (1) chlordane amendment
100ml AI (active ingredients) per 10,000 ml) to exclude microarthropods,
(2) sprinkler irrigation (6 mm per week), (3) sprinkler irrigation (6
mm/week) plus chlordate amendment (as above), (4) control (no treatment).
Three randomly located subsamples were taken from each plot
consisting of a fluff grass plant and a soil core 10 cm in diameter
and 15 cm deep centered on each plant. [taken from page 11 of
dissertation]




Download data: File grmesmin.dat
File description including attribute definitions: data_JornadaStudy_395_grama_mesquite_leaching_mineralization_potential
Original investigator: Fred Fisher
Data contact: John Anderson
Duration: 1986 - 1986
Dataset ID: 210395001
Abstract:

Soil samples collected 5/12 and 5/13/86 to survey N availability in a variety of grassland and mesquite habitats. Objective is development of hypotheses about desertification processes that degrade grassland into mesquite dominated ecosystems. Measurements made of inorganic soil nitrogen.




File description including attribute definitions: data_Jornada_288001_npp_geomet_bsne_dust_collection
Original investigator: Dale A Gillette
Data contact: Greg Okin
Duration: 1998 - ongoing
Dataset ID: 210288001
Abstract:

Collections of airborne sand are obtained at the 15 NPP sites and the Geomet site. The collections are taken using BSNE collectors. The collectors are turned into the wind with wind vanes. The amount of material collected corresponds to the horizontal flux at the height of the collector and the opening area of the collector and the duration of the sampling time. The five heights of the BSNE collectors above the soil surface are 5, 10, 20, 50, and 100 centimeters for every location where samples are taken. The hypothesis of the experiment is that the vertical flux of the particles smaller than 10 micrometers is a constant ratio of the horizontal sand flux. The objectives of the experiment are to find patterns of sand flux rates as affected by soil and vegetation.




Download data: File BSNE_18_sites.csv
File description including attribute definitions: data_BSNE_18_sites
Original investigator: Dale A Gillette
Data contact: Greg Okin, Data contact: John Anderson
Duration: 1998 - 2019
Dataset ID: 12345
Abstract:
Collections of airborne sand are obtained at the 15 NPP sites and the Geomet site. The collections are taken using BSNE collectors. The collectors are turned into the wind with wind vanes. The amount of material collected corresponds to the horizontal flux at the height of the collector and the opening area of the collector and the duration of the sampling time. The five heights of the BSNE collectors above the soil surface are 5, 10, 20, 50, and 100 centimeters for every location where samples are taken. The hypothesis of the experiment is that the vertical flux of the particles smaller than 10 micrometers is a constant ratio of the horizontal sand flux. The objectives of the experiment are to find patterns of sand flux rates as affected by soil and vegetation.



Download data: File BSNE_18_sites.csv
File description including attribute definitions: data_BSNE_18_sites
Original investigator: Dale A Gillette
Data contact: Greg Okin, Data contact: John Anderson
Duration: 1998 - 2019
Dataset ID: 12345
Abstract:
Collections of airborne sand are obtained at the 15 NPP sites and the Geomet site. The collections are taken using BSNE collectors. The collectors are turned into the wind with wind vanes. The amount of material collected corresponds to the horizontal flux at the height of the collector and the opening area of the collector and the duration of the sampling time. The five heights of the BSNE collectors above the soil surface are 5, 10, 20, 50, and 100 centimeters for every location where samples are taken. The hypothesis of the experiment is that the vertical flux of the particles smaller than 10 micrometers is a constant ratio of the horizontal sand flux. The objectives of the experiment are to find patterns of sand flux rates as affected by soil and vegetation.



File description including attribute definitions: data_Jornada_228001_neat_bsne
Original investigator: Dale A Gillette
Data contact: John Anderson
Duration: 2008 - ongoing
Dataset ID: 210228001
Abstract:
Dataset consists of horizontal dust flux at multiple heights from BSNE dust collectors located in treatment plots (different percent vegetation removed) and adjacent downwind effect plots. Year 2008 was an annual collection. Collection in subsequent years occurred before and after the wind season. The experiment was designed to test the effects of increasing wind erosion on soil and vegetation properties at the Jornada.  In order to increase wind erosion rates, vegetation was removed to increase bare surface area and stimulate erosion (the less vegetation present the greater the wind erosion).  The basic experimental design includes three treatment blocks.  Each block has four treatment plots with different level of vegetation removed (25-100%) and a control treatment.  Treatment plots are 25x50m with 25m buffers between.  The vegetation removal includes grasses and small shrubs (like XASA and ZIGR), but not mesquite or yucca or any of the larger shrubs).  Also, adjacent downwind plots are included in the design.  These plots are strictly for monitoring of soil and vegetation properties, so no maintenance is required on these areas.



Download data: File nh3vol89.dat
File description including attribute definitions: data_JornadaStudy_393_ammonia_volitalization_1989
Original investigator: William H Schlesinger
Data contact: John Anderson
Duration: 1989 - 1989
Dataset ID: 210393002
Abstract:

Ammonia volatilization was measured at three sites in the Chihuahuan Desert of southern New Mexico, U.S.A. In dry soils, ammonia volatilization ranged from 9 to 11 micrograms of nitrogen per square meter per day, but rates increased to 95 micrograms of nitrogen per square meter per day in a shrubland site after an experimental addition of water. Ammonia volatilization also increased with experimental additions of NH4Cl and decreased with additions of sucrose. Competition by nitrifiers for available NH4+ had little effect on NH3 volatilization: N-Serve, added to inhibit nitrification, decreased NH3 volatilization in a grassland site and had little effect at other sites. We suggest that NH3 volatilization is controlled by the rate of mineralization of NH4+ from soil organic matter, and mineralization is stimulated by rainfall. Overall rates of NH3 volatilization from undisturbed desert ecosystems appear to be much lower than those reported for rangeland and agricultural soils. Data set shows ammonia volatilization from the grassland soils at the base of Mount Summerford in response to a variety of experimental treatments chosen to elucidate the processes controlling the... more



Related links: Neutron Moisture Meter Calibration

File description including attribute definitions: data_JornadaStudy_013_npp_soil_water_content
Original investigator: Wesley Jarrell
Data contact: John Anderson
Duration: 1989 - 2011
Dataset ID: 210013002
Abstract:

        NOTE: 1. This dataset should only be used as a reference from this 
                         point forward (12/14/2071).
                    2. This dataset has been replaced by the NPP Soil Volumetric 
                        Water Content dataset 
                        (https://jornada.nmsu.edu/content/soil-volumetric-water-content-15-npp-sites-jornada-basin-lter-1989).
                        which contains the recalculated VWC values in addition to the 
                        adjusted raw count data from the hydroprobe.

Once a month soil water content measurements are made at 10 depths (where possible) at each of 10 access tubes at each of the 15 LTER-II sites using a neutron probe (Campbell Model 503DR Hydroprobe). Measurements are taken at 30cm, 60cm, 90cm, 120cm, 150cm, 180cm, 210cm, 240cm, 270cm, and 300cm when possible or to the greatest depth it was possible to install the access tubing before hitting impenetrable caliche. If fewer depths were measured, the missing depths have a zero in the raw data set of count values. These are changed to "." in converted water content data set. Calculated water... more



Related links: Neutron Moisture Meter Calibration

File description including attribute definitions: data_JornadaStudy_013_npp_soil_water_content_raw
Original investigator: Wesley Jarrell
Data contact: John Anderson
Duration: 1989 - 2014
Dataset ID: 210013001
Abstract:

        NOTE: 1. This dataset should only be used as a reference from this 
                         point forward (12/14/2071).
                    2. This dataset has been replaced by the NPP Soil Volumetric 
                        Water Content dataset 
                        (https://jornada.nmsu.edu/content/soil-volumetric-water-content-15-npp-sites-jornada-basin-lter-1989).
                        which contains the recalculated VWC values in addition to the 
                        adjusted raw count data from the hydroprobe.

Once a month soil water content measurements are made at 10 depths (where possible) at each of 10 access tubes at each of the 15 LTER-II sites using a neutron probe (Campbell Model 503DR Hydroprobe). Measurements are taken at 30cm, 60cm, 90cm, 120cm, 150cm, 180cm, 210cm, 240cm, 270cm, and 300cm when possible or to the greatest depth it was possible to install the access tubing before hitting impenetrable caliche. If fewer depths were measured, the missing depths have a zero in the raw data set of count values. These are changed to \\".\\" in converted water content data set. Calculated... more




File description including attribute definitions: soil_moisture_precip_variability
Data contact: Darren James
Duration: 2011 - 2013
Dataset ID: 210328003
Abstract:

This completed dataset contains soil moisture data from a study at the Jornada Experimental Range (JER) in southern New Mexico. The study was designed to assess the effect of interannual variability in precipitation on average aboveground net primary productivity (ANPP) in Chihuahuan Desert grasslands. The study began in 2009 and has five precipitation treatments (see Methods). While the study began in 2009, contains 50 plots (10 per treatment) and is ongoing, these data were only collected from July 2011 to December 2013 in a subset of 20 plots (4 per treatment). This dataset is intended to provide information about the amount of water in the top 30 cm of soil as well as verify that experimental precipitation manipulations are effective. Figure of soil moisture by precipitation treatment: https://jornada.nmsu.edu/sites/jornada.nmsu.edu/files/files/data/soil_moisture_figure.jpg Metadata and data on EDI: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&... more




File description including attribute definitions: data_JornadaStudy_365_longterm_soil_movement_across_ecotones_since_1933
Original investigator: Robert S Campbell
Duration: 1933 - ongoing
Dataset ID: 210365001
Abstract:

In 1933 and 1935, two transects were established in the Natural Revegetation Exclosure and Pasture 8b, respectively, to measure long-term soil movement in areas undergoing mesquite invasion. These two transects, established in a Prosopis-Bouteloua ecotone, were to: "measure any future changes in the extent or succession of three contiguous zones of vegetation, Bouteloua eriopoda, Gutierrezia, and Prosopis glandulosa dunes. Thus, future chartings of this transect should show whether, under the range management practiced, the succession is progressing toward the black grama climax or whether it is retrogressing toward mesquite sandhills." (E.L. Little, 1935, unpublished report) Soil movement at these transects was measured by the distance between the soil surface and a notch in 50 cm t-posts located every 15.2 m (50 ft). The 1731-m Natural Revegetation Exclosure tranect runs north-south through the center of the exclosure and extends 61 m (200ft) beyond the boundary fence on either end. It is located in primarily deep, loamy sand soils. The 457-m Pasture 8b transect is oriented WSW-ENE, and is located in shallower soils. These transects were measured in 1950 (8b only), 1955 (8b... more




Download data: File nppsn91.dat
File description including attribute definitions: data_JornadaStudy_398_npp_soil_nutrient_distribution_1991
Original investigator: Ross Virginia
Data contact: John Anderson
Duration: 1991 - 1991
Dataset ID: 210398002
Abstract:

Soil nutrient distribution in NPP quads in the Mesquite, Grassland, Playa, Creosotebush, and Tarbush plant communities sampled at 3 spatial scales of grids. Soils were sampled from the NPP (biomass plots). Each of the five vegetation types (mesquite, grassland, playa, creosote, tarbush) had three sites (with low, medium, and high production levels). At 14 of 15 sites a grid of 70 by 70 meters was set out. Within this 49 plots of 10 by 10 meters were placed and labeled (numbered) in serpentine design. At the 15th site, Playa College, 48 plots of 10 by 10 meters were laid out in three long rows of 16 plots per row. At all sites the soil sample of 0-10 cm depth was taken 1 meter from the NE marker bar at a diagonal (heading toward the SW marker). 70m x 70m layout of NPP quads where 1 is in NE corner. 43 42 29 28 15 14 1 44 41 30 27 16 13 2 45 40 31 26 17 12 3 46 39 32 25 18 11 4 47 38 33 24 19 10 5 48 37 34 23 20 9 6 49 36 35 22 21 8 7 160m x 30m layout of P-COLL NPP quads where 1 is in NE corner. 33 32 1 34 31 2 35 30 3 36 29 4 37 28 5 38 27 6 39 26 7 40 25 8 41 24 9 42 23 10 43 22 11 44 21 12 45 20 13 46 19 14 47 18 15 48 17 16 At one of each of the five vegetation types another... more




Download data: File nppschem.dat
File description including attribute definitions: data_JornadaStudy_398_npp_soil_nutrient_distribution_1989
Original investigator: Ross Virginia
Data contact: John Anderson
Duration: 1989 - 1989
Dataset ID: 210398001
Abstract:

Soil nutrient distribution beneath and between plant canopies in the Mesquite, Grassland, Playa, Creosotebush, and Tarbush plant communities. The LTER plant biomass plots was sampled in June 1989. A total of 750 soil samples were collected from 5 depths (0- 10, 10-20, 20-40, 40-60, 60-100 cm), 2 locations (under and between shrubs), within 5 vegetation zones (Mesquite, Grassland, Playa, Creosotebush, Tarbush), 3 sites per zone (site with low, medium, and high biomass, ranked based on FALL-89 biomass), and 5 directions per site (in buffer zone just outside of NPP plots N, S, E, W, and in the center of NPP plots C). Samples were analyzed for pH, CaCO3, NaHCO3- extractable P, KCl-extractable NH4 and NO3, total kjeldahl N, Saturation extrac cations, and DTPA-extractable micronutrients.




File description including attribute definitions: Soil PSA and Fractionation data
Original investigator: Jin Yao
Duration: 2001 - 2001
Dataset ID: 210351003
Abstract:

This completed dataset, collected in 2001, contains soil particle size analysis (PSA) and sand fractionation data from soil cores collected at 116 quadrat locations that are part of the Jornada Experimental Range's long-term Permanent Quadrats study. The goal of this effort was to help characterize plant-scale factors related to vegetation dynamics observed in the Permanent Quadrats. At each quadrat location, 4 cores were collected at 2 depths (0-5cm and 5-20cm) and assessed for percent sand, silt and clay. The sand fraction, if large enough, was then separated into 5 sand size classes (53-106 micrometers, 106-250 micrometers, 250-500 micrometers, 500-1000 micrometers, 1000-2000 micrometers) to measure the percent fraction of each.

Composition of Sand Fraction at 116 Permanent Quadrats:  https://jornada.nmsu.edu/sites/jornada.nmsu.edu/files/files/data/Quadrats_Sand_Fractionation_0.jpg

Soil Particle Size Analysis at 116 Permanent Quadrats:... more



Related links: Neutron Moisture Meter Calibration

File description including attribute definitions: data_Jornada_013_npp_soil_volumetric_water_content
Original investigator: Wesley Jarrell
Data contact: Mike Duniway
Duration: 1989 - ongoing
Dataset ID: 210013003
Abstract:

    Monthly soil water content measurements are made at 10 depths (where
    possible) at each of 10 access tubes at each of the 15 LTER-II NPP
    sites using a neutron probe (CPN Model 503DR Hydroprobe).  The counts
    of thermalized neutrons are adjusted for the decay rate of Americium
    241, then converted to soil water content using individual site
    regressions.  Soil water content is a volume/volume relationship and
    represent cm3 water/cm3 soil.  Data are provided at 30cm intervals from
    30cm to a maximum of 270cm soil depth, shallower when an impenetrable
    caliche layer is reached.  Field readings may include one at 300cm;
    however, the value for the deepest depth of each access tube is removed
    from the calculated soil water content data because of the effect of
    measuring greater soil volume directly below the probe than that of the
    more shallow depths.


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