AndreaBozzo/ceres-open-data-index huggingface dataset:
SGS-LTER Earthwatch - In situ Nitrogen Mineralization on Native, Abandoned and Cultivated Fields in eastern Colorado, USA in 1991

<p>This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (<a href="http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429">http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429</a>). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection.
Our objective in this study was to evaluate effects of land use on in situ net N mineralization in shortgrass steppe by comparing native and abandoned fields and cultivated fields, and by comparing soil under and between plants within native and abandoned fields. We also compared mineralization patterns between in situ and laboratory incubations to evaluate the role of environmental restrictions in determining N supply across management treatments and microsites. Additional information and referenced materials can be found: <a href="http://hdl.handle.net/10217/82140">http://hdl.handle.net/10217/82140</a> </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=103">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=103</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: ars, bulk-density, data-gov, inorganic-nutrients, nitrogen, nitrogen-mineralization, np215, nsf-lterlong-term-ecological-research, organic-matter, soil-water, usda-ars-natural-resources-and-sustainable-agricultural-systems-national-program-215-pasture-fo
Organization: Department of Agriculture
SGS-LTER Earthwatch - Organic Matter in Abandoned Fields in eastern Colorado, USA 1994-1995

<p>This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (<a href="http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429">http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429</a>). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection.
Our research on abandoned fields at the CPER has two aspects,vegetation recovery and soil recovery. We wish to monitor these fields for the tem of the LTER project (decades or centuries), and to address some specific research questions. Our questions are: 1. Does vegetation on shortgrass steppe recover 55 years following cultivation? Specifically, does Bouteloua gracilis, the dominant shortgrass steppe species, recover? Prior results indicated that B. gracilis reovers on some fields, and does not on others. The fields that do not are dominated by buffalo grass. In this new work at the CPER, we ask an additional question: 2. What determines whether B. gracilis recovers? 3. Does soil organic matter recover following abandonment? Specifically, do indices of soil fertility such as nitrogen availability recover? 4. Does small-scale patterning associated with individual plants recover following disturbance? 5. Does the rate of soil recovery depend upon the rate of vegetation recovery? Past results on the Pawnee National Grasslands indicated that only small amounts of organic matter had accumulated following abandonment but that nitrogen availability had recovered to its original levels under B. gracilis plants on the abandoned fields. Specifically, we are interested in whether it makes a difference to soils if blue grama recovers or not. Additional information and referenced materials can be found: <a href="http://hdl.handle.net/10217/82140">http://hdl.handle.net/10217/82140</a> </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=102">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=102</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: ars, carbon, data-gov, inorganic-nutrients, nitrogen, nitrogen-mineralization, np215, nsf-lterlong-term-ecological-research, organic-carbon, organic-matter, organic-nitrogen, soil-organic-matter, soil-water, soils, usda-ars-natural-resources-and-sustainable-agricultural-systems-national-program-215-pasture-fo
Organization: Department of Agriculture
SGS-LTER Earthwatch Project - Nitrogen and Carbon in Native, Abandoned and Cultivated Fields in eastern Colorado, USA 1991

<p>This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets and background information (proposals, reports, photographs, etc.) on the SGS-LTER project are contained in a comprehensive project collection within the Digital Collections of Colorado (<a href="http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429">http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429</a>). The data table and associated metadata document, which is generated in Ecological Metadata Language, may be available through other repositories serving the ecological research community and represent components of the larger SGS-LTER project collection.
Our objective in this study was to evaluate effects of land use on in situ net N mineralization in shortgrass steppe by comparing native and abandoned fields and cultivated fields, and by comparing soil under and between plants within native and abandoned fields. We also compared mineralization patterns between in situ and laboratory incubations to evaluate the role of environmental restrictions in determining N supply across management treatments and microsites. Additional information and referenced materials can be found: <a href="http://hdl.handle.net/10217/82140">http://hdl.handle.net/10217/82140</a> </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=101">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sgs&identifier=101</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: ars, carbon, data-gov, inorganic-nutrients, nitrogen, nitrogen-mineralization, np215, nsf-lterlong-term-ecological-research, organic-matter, usda-ars-natural-resources-and-sustainable-agricultural-systems-national-program-215-pasture-fo
Organization: Department of Agriculture
Termite casing data from the long-term Small Mammal Exclosure Study (SMES) at Jornada Basin LTER, 1995-2005

<p>This data package contains termite activity data in plots with a range of herbivore exclusion treatments on Jornada Experimental Range (JER) and Chihuahuan Desert Rangeland Research Center (CDRRC) lands. Study sites were established in 1995; one in black grama grassland and the other in creosotebush shrubland to compare the impact of herbivores on ecosystem processes between these vegetation types. Parallel studies were established at the Sevilleta LTER site (New Mexico, USA) and Mapimi Biosphere Reserve (Durango, Mexico). Each study site is 1 km by 0.5 km in area. Four replicate experimental blocks were randomly located at each study site to measure vegetation responses using exclusion treatments including a) all mammalian herbivores, including cattle, lagomorphs, and rodents, b) lagomorphs and cattle only, c) cattle only, and d) control accessible to all herbivores. Thirty-six sampling points were positioned at 5.8-meter intervals on a systematically located 6 by 6 point grid within each plot. A permanent one-meter by one-meter vegetation measurement quadrat is located at each of the 36 points. Each spring and fall from 1995-2005, a tape measure was used to measure the length, diameter, and height in centimeters of each termite casing in these vegetation quadrats. This study is complete. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210086008">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210086008</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: ars, data-gov, deserts, detritus, disturbance, grasslands, herbivory, insects, invertebrates, land-cover, land-use-and-land-cover-change, litter-decomposition, long-term-monitoring, np216, nsf-lterlong-term-ecological-research, nutrient-cycling, plant-animal-interactions, shrubs, smes, soils, termites
Organization: Department of Agriculture
Cryptogam crust data from the long-term Small Mammal Exclosure Study (SMES) at Jornada Basin LTER, 1995-2005

<p>This data package contains cryptogam cover data from plots with various levels of herbivore exclusion on Jornada Experimental Range (JER) and Chihuahuan Desert Rangeland Research Center (CDRRC) lands. Study sites were established in 1995; one in black grama grassland and the other in creosotebush shrubland to compare the impact of herbivores on ecosystem processes between these vegetation types. Parallel studies were established at the Sevilleta LTER site (New Mexico, USA) and Mapimi Biosphere Reserve (Durango, Mexico). Each study site is 1 km by 0.5 km in area. Four replicate experimental blocks were randomly located at each study site to measure vegetation responses using exclusion treatments including a) all mammalian herbivores, including cattle, lagomorphs, and rodents, b) lagomorphs and cattle only, c) cattle only, and d) control accessible to all herbivores. Thirty-six sampling points were positioned at 5.8-meter intervals on a systematically located 6 by 6 point grid within each plot. A permanent one-meter by one-meter vegetation measurement quadrat is located at each of the 36 points. Each year in spring and fall from 1995-2005, the percent of a quadrat covered in cryptogams was estimated by summing the percent of each 10 cm square within a quadrat (including 100 10-cm squares) containing cryptogams (See methods for a detailed explanation). Cryptogams (biological soil crusts) include lichens, algae, cyanobacteria, and moss. This study is complete. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210086003">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210086003</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: algae, ars, bacteria, biotic-crusts, cryptobiotic-crusts, cryptogam, data-gov, deserts, disturbance, grasslands, herbivory, land-cover, land-surface-properties, land-use-and-land-cover-change, lichens, long-term-monitoring, mosses, np216, nsf-lterlong-term-ecological-research, plant-animal-interactions, shrubs, smes, soil, soil-crusts
Organization: Department of Agriculture
Vegetation cover data from line-intercept transects in the long-term Small Mammal Exclusion Study (SMES) at Jornada Basin LTER, 1995-2005

<p>This package contains perennial vegetation cover data measured using the line-intercept method from plots with various levels of herbivore exclusion on Jornada Experimental Range (JER) and Chihuahuan Desert Rangeland Research Center (CDRRC) lands. Study sites were established in 1995; one in black grama grassland and the other in creosotebush shrubland to compare the impact of herbivores on ecosystem processes between these vegetation types. Parallel studies were established at the Sevilleta LTER site (New Mexico, USA) and Mapimi Biosphere Reserve (Durango, Mexico). Each study site is 1 km by 0.5 km in area. Four replicate experimental blocks were randomly located at the grassland study site to measure vegetation responses using exclusion treatments including a) all mammalian herbivores, including cattle, lagomorphs, and rodents, b) lagomorphs and cattle only, c) cattle only, and d) control accessible to all herbivores. Because grazing cattle are excluded from the entire creosote site, only three replicate experimental blocks were randomly located there including a) all mammalian herbivores, including lagomorphs, and rodents, b) lagomorphs only, and c) control accessible to all herbivores. Thirty-six sampling points were positioned at 5.8-meter intervals on a systematically located 6 by 6 point grid within each plot. A permanent one-meter by one-meter vegetation measurement quadrat is located at each of the 36 points. The vegetation line-intercept measurements in this data package were made in fall 1995 and fall 2005 to coincide with low-level aerial photography campaigns. Three 29-meter lines were measured along three out of six rows of permanent vegetation quadrats. Intercept locations for live, perennial plant cover and bare ground were measured along each line at 10cm resolution, which is comparable to the resolution of the aerial photos. Plants were identified to species level where possible. The resulting cover data can used to ground-truth cover estimates from aerial photography or for comparison to annual measures of vegetation from 1 x 1 meter permanent vegetation quadrats. This study is complete. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210086001">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210086001</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: abundance, ars, biodiversity, consumers, data-gov, deserts, grasslands, grazing, herbivory, land-cover, land-use-and-land-cover-change, long-term, long-term-monitoring, np216, nsf-lterlong-term-ecological-research, plant-animal-interactions, plant-communities, plant-cover, plant-species, populations, shrubs, small-mammals, smes, species-diversity, species-list, study-086, transects, vegetation-dynamics
Organization: Department of Agriculture
Perennial grass recovery following livestock overgazing and shrub removal: an experiment at the Jornada Experimental Range (Jornada Basin LTER), 1996-2016

<p>The objective of this ongoing study is to determine the effect of cattle grazing and shrub removal on the decline and recovery of perennial grasses in a mesquite-invaded black grama grassland on sandy soils in the northern Chihuahuan Desert. The experiment was implemented as a randomized complete block with 3 levels of grazing (summer, winter, and control) and 2 levels of shrub treatment (shrub removal and control) in each of 3 replicate blocks. The 18 experimental units are 0.5 ha (70 x 70 m) exclosures constructed in a mesquite-invaded black grama grassland in the southwest portion of the Jornada Experimental Range in Dona Ana County, New Mexico, USA. Vegetation sampling was conducted with the line-point intercept method. Initial pre-treatment sampling occurred in 1996. Grazing treatments removed 65-80% of aboveground perennial grass biomass over 24-36 hour periods in each of four years from summer 1996 to winter 2000; shrub removal occurred during this time as well. No livestock grazing or shrub removal have occurred since 2000. Post-treatment sampling occurred in 2002, 2009, and 2016. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210461001">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210461001</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: ars, black-grama, data-gov, desertification, disturbance, early-warning, grasses, grazing, herbivory, herbs, honey-mesquite, jornada-basin-lter, long-term-experiment, np216, nsf-lterlong-term-ecological-research, pasture-9, patch-size, plant, plant-animal-interactions, populations, regime-shift, resilence, sandy-ecological-site, shrub-encroachment, shrub-invasion, shrubs, state-transition-model, stressor2, study-461, vascular-plants
Organization: Department of Agriculture
Gap-filled daily precipitation at the 15 long-term NPP sites at Jornada Basin LTER, 1980-ongoing

<p>This package contains gap-filled daily precipitation values for the 15 NPP sites at Jornada Basin LTER in southern New Mexico, USA. Sites were selected to represent the 5 major ecosystem types in the Chihuahuan Desert (upland grasslands, playa grasslands, mesquite-dominated shrublands, creosotebush-dominated shrublands, tarbush-dominated shrublands). For each ecosystem type, three sites were selected to represent the range in variability in production and plant diversity; thus the locations are not replicates. Gap-filled daily precipitation was calculated for the period from 1980 to 2019 at each site using the closest rain gauges that provided a minimum resolution of daily precipitation data. The Methods section and attached documents describe this in detail. The rain gauges used are described, with respect to their relationship to NPP sites, in the attached "daily_gapfill_ppt_gauge_usage.csv" file. Although automated weather stations became operational at all NPP sites in 2013 (except P-SMAL, in 2017), updates to this data package are ongoing and are intended to gap-fill any missing or invalid data from the weather stations. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210425001">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210425001</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: aboveground-production, ars, c-cali, c-grav, c-sand, data-gov, deserts, disturbance, estimate, g-basn, g-ibpe, g-summ, m-nort, m-rabb, m-well, net-primary-production, np216, npp, npp-locations, nsf-lterlong-term-ecological-research, p-coll, p-smal, p-tobo, precipitation, primary-production, rain, rain-gauge, study-425, t-east, t-tayl, t-west, tipping-bucket, vegetation-dynamics
Organization: Department of Agriculture
Jornada Experimental Range (USDA-ARS) annual stocking rates for cattle, horses, and sheep, 1916-2001

<p>This data package contains data on stocking rates for cattle, horses, and sheep on all pastures of the USDA-ARS Jornada Experimental Range beginning in 1916. Grazing goats were infrequent and are therefore included as part of the sheep category. Stocking rates are expressed in animal unit month (AUM), which is based on metabolic weight and average amount of forage needed by each animal unit per month. Total AUM is calculated for each year for each animal unit. This study was completed in 2001 and will not be updated.NOTE: The USDA-ARS discontinued regular updates to this dataset after 2002 because of de-stocking. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210412001">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210412001</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: agriculture, animal-unit-month, ars, aum, cattle, cdrrc, data-gov, deserts, goat, grasslands, grazing, herbivores, horse, jer, land-use-and-land-cover-change, livestock, management-practices, np216, nsf-lterlong-term-ecological-research, pasture-9, plant-animal-interactions, populations, sheep, shrubs, stocking-rate, study-412, usda
Organization: Department of Agriculture
Daily precipitation from a network of weighing rain gauges on the Jornada Experimental Range (Jornada Basin LTER), 1976-2011.

<p>This completed dataset contains daily precipitation measurements from a network of weighing rain gauges (Belfort Universal Precipitation Gauges, Series 5-780) at 58 locations on the Jornada Experimental Range in Dona Ana County, New Mexico, USA between January 1976 and December 2011. Locations and the dates during which data were collected were generally project-oriented. Temporal coverage per location is quite variable and ranges between 1,647 and 13,024 days. The network was maintained by USDA Agricultural Research Service personnel. After 2011 the remaining weighing rain gauges were replaced by tipping bucket gauges and those data are available separately. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Website Pointer to html file.</p> <p>File Name: Web Page, url: <a href="https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210407001">https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-jrn&identifier=210407001</a> </p><p>Webpage with information and links to data files for download</p></li></ul><p></p>

Tags: ars, climate-soils-and-atmosphere, data-gov, disturbance, dona-ana, hq, hydrology, jer, jornada-basin-lter, keyword, land-atmosphere-interactions, long-term-ecological-research, meteorology, network, np216, nsf-lterlong-term-ecological-research, precipitation, rain, rain-gauge, rainfall, standard-rain-gauge, study-407
Organization: Department of Agriculture