Search Help
Did you find what you were looking for? Yes No
Thumbnail Icon Science Keywords > BIOSPHERE > VEGETATION > NITROGEN


Refine by Category
 
Refine by Full text

 

179 Titles Match Your Query
Showing 1 through 50 of 179 Next
1. Long-Term Ecological Research (LTER)/HFR004: Ecosystem Response to Chronic Nitrogen Additions [LTER_HFR004]
HFR004: Nitrogen is being added as ammonium nitrate at rates of 50 and 150 kg/ha-yr in oak-maple and red pine stands. Measurements include nitrogen mineralization, litter decomposition, tree growth, ...


2. Long-Term Ecological Research (LTER)/KBS003: Kellogg Biological Station Baseline Variability Study [LTER_KBS003]
LTER - Long-Term Ecological Research Program/Kellogg Biological Station (KBS) LTER/KBS003 [Summary adapted from the LTER Core Data Set Catalog]: Results from a study of spatial variability conducted ...


3. Long-Term Ecological Research (LTER)/KBS013: Nitrous Oxide (N2O) and CO2 Fluxes from Cropped and Early Successional Communities [LTER_KBS013]
LTER - Long-Term Ecological Research Program/Kellogg Biological Station (KBS) LTER/KBS013 (Summary adapted from the LTER Core Data Set Catalog): Results from a study of N2O and CO2 fluxes from soybean/corn ...


4. NACP TERRA-PNW: Forest Plant Traits, NPP, Biomass, and Soil Properties, 1999-2014 [doi:10.3334/ORNLDAAC/1292_1]
This data set contains measurements and estimates of leaf, tree, and soil data from six projects conducted by the Terrestrial Ecosystem Research and Regional Analysis- Pacific Northwest (TERRA-PNW) ...


5. Plum Island Ecosystem LTER site - Ipswich River Dissolved Dataset [lterpieipswdiss]
The Plum Island Ecosystem (PIE) research site is part of the National Science Foundation's (NSF) Long Term Ecological Research (LTER) Network. PIE-LTER research is conducted by scientists from the ...


6. Plum Island Ecosystem LTER site - Ipswich River Particulate Dataset [lterpieipswpart]
The Plum Island Ecosystem (PIE) research site is part of the National Science Foundation's (NSF) Long Term Ecological Research (LTER) Network. PIE-LTER research is conducted by scientists from the ...


7. Plum Island Ecosystem LTER site - Parker River Dissolved Dataset [lterpieparkdiss]
The Plum Island Ecosystem (PIE) research site is part of the National Science Foundation's (NSF) Long Term Ecological Research (LTER) Network. PIE-LTER research is conducted by scientists from the ...


8. Plum Island Ecosystem LTER site - Parker River Particulate Dataset [lterpieparkpart]
The Plum Island Ecosystem (PIE) research site is part of the National Science Foundation's (NSF) Long Term Ecological Research (LTER) Network. PIE-LTER research is conducted by scientists from the ...


9. Plum Island Ecosystem LTER site Datasets [lterpieparent]
The Plum Island Ecosystem (PIE) research site is part of the National Science Foundation's (NSF) Long Term Ecological Research (LTER) Network. PIE-LTER research is conducted by scientists from the ...


10. VEMAP 2: Annual Ecosystem Model Responses to U.S. Climate Change, 1994-2100 [doi:10.3334/ORNLDAAC/766_1]
Phase 2 of the VEMAP Project developed historical (1895-1993) gridded data sets of climate (temperature, precipitation, solar radiation, humidity, and wind speed) and projected (1994-2100) gridded ...


11. VEMAP 2: Monthly Ecosystem Model Responses to U.S. Climate Change, 1994-2100 [doi:10.3334/ORNLDAAC/767_1]
Phase 2 developed historical (1895-1993) gridded data sets of climate (temperature, precipitation, solar radiation, humidity, and wind speed) and projected (1994-2100) gridded annual and monthly climate ...


12. Long Term Slurry on Grassland Experiment, Soil Organic Matter Network, Northern Ireland - DANI.Slurry [DANI.Slurry]
This experiment was initiated in 1970 at a site that was originally temperate deciduous woodland. It then was an estate farm until the agricultural institute founded in 1926. The area ...


13. A Global Data Set of Leaf Photosynthetic Rates, Leaf N and P, and Specific Leaf Area [doi:10.3334/ORNLDAAC/1224]
This is AIRS-CloudSat collocated subset, in NetCDF 4 format. These data contain collocated: AIRS Level 1b radiances spectra, CloudSat radar reflectivities, and MODIS cloud mask. These data are created ...


14. A Study of the Nitrogen-fixing Microbiota of Macquarie Island Plant Communities [ASAC_194]
The nitrogen fixing biota of Macquarie Island are dominated by cyanobacteria growing epiphytically or symbiotically with plants or lichens. Highest rates of acetylene reduction (N-fixation) were found ...


15. AmeriFlux CO2, Water Vapor, and Energy Exchange from Native Tallgrass Prairie Site Near Shidler, Oklahoma, 1996-1997 [AMERIFLUX_SHIDLER-CDIAC]
The tallgrass site near Shidler, Oklahoma is part of the AmeriFlux network of field research projects measuring the exchange of carbon dioxide (CO2) between terrestrial ecosystems and ...


16. AmeriFlux CO2, Water Vapor, and Energy Exchange from a Wheat Site Near Ponca, Oklahoma 1996-1997 [AMERIFLUX_PONCA_CDIAC]
The wheat site near Ponca, Oklahoma is part of the AmeriFlux network of field research projects measuring the exchange of carbon dioxide (CO2) between terrestrial ecosystems and the atmosphere. ...


17. Arctic Plant and Ecosystem Respiration [arctic_plant_and_ecosystem_respiration]
Measurements of leaf, wood, moss, lichen, root and whole ecosystem respiration made in tussock tundra near Imnavait Creek during the growing seasons of 2010, 2011 and 2012. Measurements were made ...


18. Askov Long-Term Experiments on Animal Manure and Mineral Fertilizers - Lermarken [Denmark.Askov]
The ASKOV Long-term Experiments on Animal manure and Mineral Fertilizers began in 1894. This area was first cultivated around 1800, and was previously open mixed heath and deciduous scrubland. The ...


19. BOREAS RSS-04 1994 Jack Pine Leaf Biochemistry and Modeled Spectra in the SSA [doi:10.3334/ORNLDAAC/292]
Contains stem growth and sapwood data collected by TE-02.


20. BOREAS TE-02 Foliage Respiration Data [doi:10.3334/ORNLDAAC/315]
A Landsat-5 TM image from 06-Aug-1990 was used to derive this classification, the objective of which is to provide BOREAS investigators with a data product that characterizes the land cover of the ...


21. BOREAS TE-02 Root Respiration Data [doi:10.3334/ORNLDAAC/316]
The objective of this classification is to provide BOREAS investigators with a data product that characterizes the land cover of the NSA. A Landsat-5 TM image from 21-Jun-1995 was used to derive the ...


22. BOREAS TE-02 Stem Growth & Sapwood Data [doi:10.3334/ORNLDAAC/317]
The objective of this classification is to provide BOREAS investigators with a data product that characterizes the land cover of the SSA. A Landsat-5 TM image from 02-Sep-1994 was used to derive the ...


23. BOREAS TE-09 Leaf Biochemistry Averages [doi:10.3334/ORNLDAAC/339]
The flux and ancillary data collected at the SSA-YJP towerflux site by the TF-04 group.


24. BOREAS TE-09 Leaf Biochemistry Point Data [doi:10.3334/ORNLDAAC/340]
The flux and ancillary data collected at the SSA-OJP tower flux site by the TF-05 group.


25. BOREAS TGB-08 Monoterpene Concentration Data over the SSA-OBS and the SSA-OJP [doi:10.3334/ORNLDAAC/392]
CALIPSO Wide Field Camera Level 1A 1 km Native Science data


26. Bhubaneswar Centre, Orissa (All India Coordinated Research Project on Long Term Fertilizer Experiments) [India.Bhubaneswar]
This long term experiment began in 1972. The experimental site is a tropical area, with a minimum annual temperature of 14 deg C, maximum annual temperature of 37.5 deg C, and mean annual rainfall ...


27. Billa Billa Fallow Management Experiment, Queensland, Austrailia [QWRI.BillaBilla]
The Billa Billa Folow Management Experiment was initiated in 1983. The soil parent material at the site consists of cretaceous sediments (lithic sandstone). The native vegetation was cleared in 1971. ...


28. Biology of lichen communities in Antarctica. [CNDA-ESP_LIQ_PAD]   CHILD METADATA
In English: This dataset contains information on the registered data on studies of the biology of lichen communities in Antarctica. This dataset is also the parent record ...


29. Biome-BGC: Modeling Carbon Dynamics in Ponderosa Pine Stands (Law et al. 2003) [doi:10.3334/ORNLDAAC/809]
The BOREAS Follow-On FLX-01 team collected tower flux, surface meteorological, and soil temperature data at the BOREAS NSA-OBS site continuously from March 1994 through December 1998. Data from March ...


30. Breton Plots - University of Alberta, Canada [Canada_UofAlberta_BretonPlots]
This experiment began in 1930. The soils of the area have developed on sandstones and shales of freshwater origin. Soil formation was influenced by native vegetation consisting primarily of stands ...


31. Broadbalk Wheat Experiment, Soil Organic Matter Network (SOMNET), U.K. [IACR.Broadbalk]
This experiment began in 1843. The site was possibly farmed since Roman times (i.e at least 1500 years). Map of 1623 shows field in arable use. 1839-1843 arable crops: turnips, barley, peas, wheat, ...


32. Bryophyte species composition over moisture gradients in the Windmill Islands, East Antarctica; development of a baseline for monitoring climate change impacts [ASAC_1313_Baseline]   PARENT METADATA
This metadata record describes supplementary material to accompany the listed publication, and the data described in the paper and the supplementary material relates to AAS (ASAC) project 1313, as ...


33. Carbon Dioxide Enrichment: Data on the Response of Cotton to Varying CO2, Irrigation, and Nitrogen in Phoenix, Arizona, CDIAC NDP-037 [CDIAC_NDP37]
This data set contains results from field CO2-enrichment experiments conducted over five consecutive growing seasons, 1983-1987. These results comprise data concerning the effects of continuous CO2 ...


34. Carbon Sequestration by Switchgrass Managed as an Energy Crop [USDA0395]
The objective of the "Carbon Sequestration by Switchgrass Managed as an Energy Crop" dataset is to monitor carbon sequestration over time in switchgrass and to compare the economic and carbon sequestration ...


35. Carbon and nitrogen fixation rates from microbial mat populations in moraine ponds on the McMurdo Ice Shelf [K081_2004_2005_NZ_4]
Carbon and nitrogen fixation experiments were conducted on mats collected from 10 of the ponds on the McMurdo Ice Shelf near Bratina Island. Nitrogen fixation was determined via reduction of acetylene ...


36. Chesapeake Bay Program Nutrient Point Source Database [CBP_PSDB]
The Chesapeake Bay Program Nutrient Point Source Database contains data from about 600 nutrient dischargers in the Bay watershed. This database provides facility information, average flow data, average ...


37. Combination Trial F1-70, Soil Organic Matter in Cropland Experiment, Germany. [MLU.F1-70]
This experiment was initiated in 1967. The crops grown are potatoes, winter wheat,winter barley,sugar beet,spring barley. The treatments are: Stable manure at 4 rates on potatoes & sugar beet; mineral ...


38. Crop Residue Decomposition as Affected by Soil Erosion and Tillage, USDA-ARS [USDA.ARS.CPCRC.ResidueDecomp]
This data set is a result of a study to determine the rates of different crop residue decomposition (clover and wheat), under two different cropping regimes (grain sorghum plots with: no till and ...


39. Crop Rotation/Fertilization Trial F1-07, Germany [MLU.Seehausen]
This experiment began in 1958. The experimental site is in the Eastern German continental climate in the Leipzig Basin. The average climatic conditions at the experimental site are: Minimum ...


40. Crop Yield to Crop and Soil Nutrient Element Status [USDA0405]
The purpose of the "Crop Yield to Crop and Soil Nutrient Element Status" study is to establish fertilizer requirements for major crops; evaluate soil and plant analysis procedures; correlate yield ...


41. Czarny Potok, Soil Organic Matter Experiment, Poland [ARK.Czarny]
This experiment began in 1968 on a natural grassland area of Poland. The site was arable crops to 1945 and later returned to grassland. The land use of this area is permanent meadow now. Treatments ...


42. Deherain Plots, Long Term Cropping/Soil Experiment, France [INRA.Deherain]
The Deherain long-term field experiment was started in 1875 to study the impact of fertilization on crop yield. Before 1875, the soil was cultivated with alfalfa without fertilization. Between 1929 ...


43. Denitrifying Activity in Deep Soil Profiles [USDA0406]
The "Denitrifying Activity in Deep Soil Profiles" dataset contains data on what factors control denitrifying activity in deep soil profiles. Its purpose is to evaluate an N-based method for measuring ...


44. Distribution of Dissolved Pesticides and Other Water Quality Constituents in Small Streams, and their Relation to Land Use, Willamette River Basin, Oregon [WRIR_97_4268]
Water quality samples were collected at sites in 16 randomly selected agricultural and 4 urban subbasins as part of Phase III of the Willamette River Basin Water Quality Study in Oregon during 1996. ...


45. EM89 - Pinus radiata Plantation Organic Matter Experiment, Austrailia [CSIRO.TRC.EM89]
This experiment began in 1985. The site was previously a native eucalypt forest, but has been a Pinus radiata plantation for 47 years. There are four treatments as follows: 1) Slash and ...


46. Ecophysiology (CO2 / O2 exchange, nitrogen fixation rates and chlorophyll a levels) of endolithic algae from Marble Point, Antarctica [K024_1979_1980_NZ_2]
Rocks containing endolithic algae were collected from the Marble Point area. Infra-red gas analysis and Warburg Manometry studies were carried out to ascertain carbon dioxide and oxygen exchange. ...


47. Effects of CO2 and Nitrogen Fertilization on Growth and Nutrient Content of Juvenile Ponderosa Pine (ORNL/CDIAC-107, NDP-061A) [CDIAC_NDP061A]
This data set presents measured values of plant diameter and height, biomass of plant components, and nutrient (carbon, nitrogen, phosphorus, sulfur, potassium, calcium, magnesium, boron, copper, ...


48. Effects of Elevated Carbon Dioxide on Litter Chemistry and Decomposition [doi:10.3334/ORNLDAAC/651]
Station position and velocity solutions (weekly and cumulative) in Software INdependent EXchange (SINEX) format derived from analysis of Doppler Orbitography by Radiopositioning Integrated on Satellite ...


49. Effects of Lime and Crop Residue on Soil Fertility and Crop Yield on Acidic soil under Rice-Rice-Soybean, Taiwan [KDAIS.TaiwanRice]
SITE HISTORY For more than 20 years before the experiment began in 1974, paddy rice was the crop grown on the experimental site. The experimental site is located in the Pintung Plain of Southern ...


50. Effects of Nitrogen and Phosphorus Fertilization on Alpine Plant Species Composition [brdlter0030]
Supplementary Information: The information for the abstract, investigator, Geographic Description: The study plots were located just south of the Niwot Ridge Saddle, in the City of Boulder Watershed. ...


Showing 1 through 50 of 179 Next
Click here for a static view of records.

Link to Web Site