Search Help
Thumbnail Icon [Parameters: Topic='BIOSPHERE', Term='VEGETATION', Variable_Level_1='NITROGEN']


Refine by Category
 
Refine by Full text

 

236 Titles Match Your Query
Previous Showing 51 through 100 of 236 Next
51. Nitrogen (N Total Nutrients) - Production [geodata_2018]
Fertilizer consumption refers to the application of nutrients in terms of nitrogen (N), phosphate (P2O5), and potash (K2O) consumed in agriculture by a country. All figures are given in Metric Tonnes ...


52. Nitrogen Fixation in Seagrass Lagoons [USDA0549]
The data in "Nitrogen Fixation in Seagrass Lagoons" has the purpose of helping to better understand factors which exclude N-fixing cyanobacteria from the plankton of estuaries and coastal seas; helping ...


53. Nitrogen acquisition, assimilation and allocation in plants in Subantarctic and Antarctic ecosystems [ASAC_773]
In this study the nitrogen sources of plants were investigated for Macquarie Island in an ecosystem influenced by large amounts of animal-derived nitrogen. Different plant communities were studied ...


54. Nitrogen fixation and carbon assimilation rates of fumarole plants from the Mt Erebus crater rim [K024_1979_1980_NZ_1]
Sterile samples of plants were taken from Mt. Erebus crater rim and returned to New Zealand for in situ acetylene reduction assays for nitrogen fixation and 14C assimilation assays.


55. Nitrogen studies in sub-Antarctic terrestrial environments [ASAC_1022]
Metadata record for data from ASAC Project 1022 See the link below for public details on this project. ---- Public Summary from Project ---- Nitrogen studies in subantarctic terrestrial environments ...


56. Nutrient transfer from penguin colonies to the vegetation at Cape Hallett: A measurement of the transfer of organic nitrogen in the form of ammonia [K024_2004_2006_NZ_3]
The transfer of nutrients from marine to terrestrial ecosystems are though to be important for vegetation. The transfer rate of organic nitrogen in the form of ammonia from the penguin colonies to ...


57. Parker River Plum Island Sound Estuarine Surface Area and Volume Data [lterpiepis_dims]
The Plum Island Ecosystem was originally called The Plum Island Sound Comparative Ecosystems Research Program and was part of the The Land Margin Ecosystems Research Program developed by the National ...


58. Relationships Between Recent Changes of Growth and Nutrition of Norway Spruce, Scots Pine and European Beech Forests in Europe [EFI_RECOGNITION]
The first objective of this FAIR project (CT98-4124) is to identify the potential causes of recent growth trends in European forests and to investigate their interactions with focus on the relative ...


59. Response of Crops to Free Air CO2 Enrichment (FACE) [USDA0532]
"Response of Crops to Free Air CO2 Enrichment (FACE)" is research that continues large cooperative experiments to determine the effects of CO2 supplied to the free air in an open agricultural field ...


60. Response of Temperate and Tropical N2-Fixing Trees to Global Environmental Change [USDA0584]
The purpose of this data is to determine the effect of increased carbon dioxide and associated climate change on temperate and tropical nitrogen-fixing trees and to determine the impact of environmental ...


61. Responses of Range Grasses and Soils to Global Change [USDA0094]
The purpose of the "Responses of Range Grasses and Soils to Global Change" dataset is to understand basic, mechanistic responses of grass species and soils to growth under different CO2, water regimes, ...


62. Rotation and Nitrogen Fertilization Effects on Changes in Soil Carbon and Nitrogen [USDA0098]
The dataset consists of data resulting from an experimental study involving seven cropping systems (three monoculture, two 2-year, and two 4-year rotations) with three rates of N fertilizer. Data ...


63. Shifts in Carbon Flux Between Plants and Soil Microorganisms [USDA0283]
The objective of this research is to quantify the flux of C and N in the plant-soil system, and to determine if increases in atmospheric CO2 alter the cycling of C and N within the soil. Forest tress ...


64. Surface-Water-Quality Assessment of the Yakima River Basin, Washington [WRIR_98_4113]
Surface-water-quality conditions were assessed in the Yakima River Basin, which drains 6,155 square miles of mostly forested, range, and agricultural land in Washington. The Yakima River Basin is ...


65. Ultuna Long-term Soil Organic Matter Experiment, Sweden [SLU.SSD.Ultuna]
This experiment began in 1956 at a cool temperate site in Sweden. the soil at the site is described as a Typic Eutrochrept (Soil Survey Staff, 1987); Eutric Cambisol (FAO 1988). The site has been ...


66. Upper Klamath Lake Basin Nutrient-Loading Study-Assessment of Historic of Flows in the Williamson and Sprague Rivers [WRIR_98_4198]
The Williamson River Basin, located in south-central Oregon, has a drainage area of approximately 3,000 square miles. The Sprague River, which flows into the Williamson River Basin, has a drainage ...


67. Use of Coupled Wetland-Agricultural Ecosystem for Water Quality Remediation [USDA0535]
"Use of Coupled Wetland-Agricultural Ecosystem for Water Quality Remediation" examines the water quality benefits that can be achieved in a coupled wetland-agriculture ecosystem ...


68. Vegetation/Ecosystem Modeling and Analysis Project (VEMAP) gridded annual and monthly biogeographic and biogeochemical time series data [EOSWEBSTER_VEMAP2_4]   PARENT METADATA
The EOS-WEBSTER VEMAP2 Data Collection contains several datasets which provide historical and future climate variables, and monthly and annual biogeochemical model outputs. ...


69. Vegetation/Ecosystem Modeling and Analysis Project (VEMAP) gridded monthly and annual time series data [EOSWEBSTER_VEMAP2]   CHILD METADATA
The EOS-WEBSTER VEMAP2 Data Collection contains several datasets which provide historical and future climate variables, and monthly and annual biogeochemical model outputs. ...


70. Vegetation/Ecosystem Modeling and Analysis Project Vegetation, Climate, Climate Scenarios, and Soils Database [VEMAP]
The Web site for VEMAP is: "http://www.cgd.ucar.edu/vemap/" The FTP site for VEMAP is: "ftp://ftp.ucar.edu/cgd/", directory "vemap/" The following was abstracted for a data availability ...


71. Walker Branch Watershed, AmeriFlux CO2, Water Vapor, and Energy Exchange Oak Ridge National Laboratory, TN 1995-1998 [AMERIFLUX_WBW_CDIAC]
The Walker Branch Watershed (WBW), Tennessee is part of the AmeriFlux network of field research projects measuring the exchange of carbon dioxide (CO2) between terrestrial ecosystems and the atmosphere. ...


72. Wetland Ecology and Assessment Program [gomc_175]
Coastal salt marsh wetlands are unique, valuable, and highly productive ecosystems that provide vital habitat and refuge for fish, shellfish, and wildlife and perform important physical and chemical ...


73. Woburn Ley-Arable Long Term Soil Organic Matter/Cropping Experiment [IACR.Woburn]
This experiment began in 1938 at a cool temperate site in England. There are 3 soil series present on the experiment. Cottenham, brown sand on Lower Greensand. Lowlands, colluvial brown earth in sandy ...


74. Woodslee Tile Runoff Rotation Experiment [CLBRR.CEF.AGR.Woodslee]
This experiment began in 1959 at cool temperate site in Canada. The measurments made (data available), methodology, and frequency are as follows: a) Vegetation measurements ...


75. 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 ...


76. 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 the atmosphere. ...


77. 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. ...


78. 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 ...


79. 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 ...


80. 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 ...


81. 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 ...


82. 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 ...


83. 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 ...


84. 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 ...


85. 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 ...


86. 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 ...


87. 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 ...


88. 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. ...


89. 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. ...


90. 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, ...


91. 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. ...


92. Effects of Nitrogen and Phosphorus Fertilization on Alpine Plant Species Composition: Summary Data [lternwt0031]
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.


93. Effects of Nutrient Transport in Cropping Systems in Environmental Quality and Fertilizer Efficiency [USDA0519]
The purpose of "Effects of Nutrient Transport in Cropping Systems in Environmental Quality and Fertilizer Efficiency" is to assess dynamic nitrogen (N) transport in high-residue conservation-tilled ...


94. Fluxes of Nitrogen Oxide and Methane from Nitrogen Amended Soils in the Colorado Alpine [lternwt0029]
In order to determine the effect of increased nitrogen availability on fluxes of N2O and CH4 from alpine soils, we measured fluxes of these gases from fertilized and unfertilized soils in two alpine ...


95. Glen Innes Rotation Experiment, Long Term Soil Organic Matter Study, Australia [WWAI.GlenInnes]
This study was initiated in 1921 in cool temperate region. the soil is described as Prairie - Australian Great Soil Group (ref Stace HCT, Hubble GD, Brewer R, Northcote KH, ...


96. Growth and Chemical Responses to CO2 Enrichment - Virginia Pine (Pinus Virginiana Mill.), CDIAC NDP-009 [CDIAC_NDP9]
Growth and chemical responses of Virginia pine grown in open-top growth chambers at elevated CO2 concentrations (+0, +75, +150, +300, +600 ppmv) were evaluated over a four-month period. The seedlings ...


97. IAI-Data-CRN_012-Chile: Comparison of principal ecosystem functions in forests of contrasting biodiversity in Chile and Argentina [IAIDIS752]   PARENT METADATA
The main objective of this work is to compare principal ecosystem functions in forests of contrasting biodiversity (low in Argentina, high in Chile) and primary productivity in southern temperate ...


98. IAI-Data-CRN_012_Austin_BIOD-NITR: Effects of autotrophic nitrification on C and N cycling in the Patagonian steppe [IAIDIS764]   PARENT METADATA
Human activities are altering biodiversity and the N cycle globally, affecting marine and terrestrial carbon cycling. Only a few specialized bacteria carry out nitrification in terrestrial ecosystems, ...


99. IAI-Data-CRN_012_Austin_GRASS-DEC: Relative importance of dominant grass species in a water-limited ecosystem in the Patagonian steppe [IAIDIS758]   PARENT METADATA
Changes in biodiversity due to human impact of domestic grazers are occurring in many parts of the world, and the net effect of this change could have detrimental effects on ecosystem functioning. ...


100. IAI-Data-CRN_012_Austin_POSIT-DEC: The importance of position of senescent material on decomposition and nutrient release [IAIDIS760]   PARENT METADATA
The importance of standing dead material, including coarse woody debris in forests, has been shown to be important in the regeneration of forests, and critical for maintaining a variety of ecosystem ...


Previous Showing 51 through 100 of 236 Next
Click here for a static view of records.

-->