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182 Titles Match Your Query
Showing 1 through 50 of 182 Next
1. AAV30708 Biogeochemistry - CO2 and Alkalinity bottle data collected on the CEAMARC Cruise of the Aurora Australis [CEAMARC_CASO_AAV30708_Biogeochemistry]
Total carbon dioxide and total alkalinity analysis of niskin bottle samples collected on CTD casts. All data have been stored in a single excel file. Measurements were made on the CEAMARC voyage ...


2. Algal composition, physico-chemical features, photosynthetic carbon metabolism, nitrogen cycling and the structure and metabolic properties of algal mats in lakes and streams of southern Victoria Land [K081_1983_1986_NZ_1]
A three year study of lakes and stream of southern Victoria Land was conducted from 1983-1986. In the first season, the algal composition and physico-chemical characteristics of South Victoria Land ...


3. AmeriFlux Gap-Filled Data from Selected Sites [NCAR_DS387.0]
AmeriFlux [http://ameriflux.lbl.gov/] is part of the larger network Fluxnet [http://daac.ornl.gov/FLUXNET/fluxnet.shtml] which endeavors to connect observations from regional ...


4. An Ecosystem Model of Carbon, Nitrogen and Water Balances in Forests [EOSWEBSTER_PnET_Ecosystem_Model]   CHILD METADATA
PnET (net photosynthesis / evapotranspiration) is a nested series of models of carbon (C), water and nitrogen dynamics in forest ecosystems. The models can be used to predict transient ...


5. An integrated approach to assess carbon dynamics in the Southern Ocean from the Belgian Antarctic Program [AMD_BE_CARBON_DYN]
This research attempts to determine the role - CO2 source or sink - of the Southern Ocean on a regional and seasonal scale by implementing an integrated multidisciplinary approach which combines in ...


6. Analysis: low oxygen concentrations and biogenic elements associated with Equatorial Subsurface water, and variability in Humboldt Current System off Chile [GLOBEC_039_CHL_003]   PARENT METADATA
Analysis of the distribution of low oxygen concentrations and biogenic elements associated with the Equatorial Subsurface water and characterization of seasonal and inter-annual variability in the ...


7. Antarctic nonmarine aquatic ecosystems as global change sensors [CNDA-ES_LIMNOPOLAR_META_BAS017]
In English: This project is aimed to achieve a higher knowledge of the limnetic systems in Polar latitudes. Particularly, it promotes the accurate description the Byers Peninsula (Livingston Island), ...


8. Application of Stable Isotope Techniques to Identifying Foodweb Structure, Contaminant Sources, and Biogeochemical Reactions in the Everglades [USGS_SOFIA_kendall_stable_isotopes]
This is the largest isotope foodweb study ever attempted in a marsh ecosystem, and combines detailed, long-term, trophic and biogeochemical studies at selected well-monitored USGS/SFWMD/FGFFC sites ...


9. Architectural and Physiological Limit on Carbon Balance in Plants [USDA0576]
The objective of "Architectural and Physiological Limit on Carbon Balance in Plants" is to investigate genetic differences in the architectural and physiological characteristics known to influence ...


10. 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 ...


11. Assessment of the importance of biological nitrogen fixation in the terrestrial ecosytem: Nitrogen fixation rates of Nostoc cyanobacterial mats in the Garwood Valley and at Cape Royds [K053_1986_1987_NZ_1]
Microbes with the nitrogenase enzyme on mosses and soils, particularly the cyanobacteria Nostoc, were examined to investigate the extent and magnitude of the nitrogen fixation process. Sample cores ...


12. Availability of Organic Carbon for Denitrification of Nitrate in Subsoils and Groundwaters [USDA0511]
The purpose of "Availability of Organic Carbon for Denitrification of Nitrate in Subsoils and Groundwaters" is to determine the amounts of organic carbon and nitrate in subsoils and groundwaters from ...


13. BIOGEOCHEMICAL CYCLES [EIC13]
Results of continuous programme of monitoring of the cycling of nutrients in four upland catchments from 1982 onwards.


14. Baseline concentrations of elements in the Antarctic macrolichen Umbilicaria decussata [Antar_Macrolichen_Umbilicaria]
Total concentrations of major and trace elements were determined in samples of the epilithic lichen Umbilicaria decussata from 24 ice-free areas in coastal Victoria Land (Antarctica) during ...


15. Below Ground Responses to Global Environmental Change and the Biogeochemical Dynamics of Carbon [USDA0512]
The purpose of "Below Ground Responses to Global Environmental Change and the Biogeochemical Dynamics of Carbon" is to provide new insights into the effects of expected environmental change on ecological ...


16. Benthic mat biomass and productivity (photosynthesis and respiration) in Lake Vanda, Wright Valley and the role of invertebrates in carbon cycling in the lake [K081_1997_2000_NZ_1]
The importance of benthic microbial production in the lakes of the McMurdo Dry Valleys and how the benthic cyanobacterial mats are adapted to survive and grow in deep water (extreme low light but ...


17. Biogenic Emissions From the 1995 Southern Oxidants Study (SOS) Nashville/Middle Tennessee Ozone Study Data Base [SOS_E2]
E2 - Biogenic Emissions The Southern Oxidants Study (SOS) conducted a major field research campaign in Nashville/Middle Tennessee area in June and July 1994 and 1995. The goal of this study was ...


18. CACHE-DRAM: DRivers and AMplifiers of late Quaternary climate change [GB-NERC-BAS-PDC-00509]
Ice core records provide highly detailed records of how different components of the climate system have behaved in the past. DRAM will make use of these and other data to pin down the main forcings ...


19. CO2 and Temperature Effects on Two Subtropical Grassland Species: A C3 Legume and C4 Stoloniferous Grass. [USDA.ARS.CGERU.CO2tempFlorida]
(Adapted from an Abstract Presented at ARS Carbon Storage Workshop) THE PROBLEM: After maximal deforestation in the Eastern USA, and particularly the Southeastern USA, much land returned naturally ...


20. CSIRO GASLAB Network: Individual Flask Measurements of Atmospheric Trace Gases, CDIAC/DB1021 [CDIAC_DB1021]
Data are available for four atmospheric trace gases at nine stationary sites and one moving platform (aircraft over Cape Grim, Tasmania, and Bass Strait, between the Australian continent and Tasmania). ...


21. Carbon Accumulation and Sequestration by Bahiagrass Systems: Effect Across Time of Nitrogen Fertility, Water, and Aboveground Biomass Removal. [USDA.ARS.CGERU.Bahiagrass]
(Adapted from an Abstract Presented at ARS Carbon Storage Workshop) "Missing" carbon has been identified publicly as a major problem in balancing the annual global carbon budget for at least 22 years. ...


22. Carbon Budgets, Agroforestry Ecosystems, and Global Climate Change in the Northern Great Plains [USDA0378]
The "Carbon Budgets, Agroforestry Ecosystems, and Global Climate Change in the Northern Great Plains" dataset establishes ecosystem carbon budgets toward the goal of maximizing carbon storage and ...


23. Carbon Dioxide Concentration Measurements from Subnivean Environment [carbon_dioxide_concentration_measurements_from_subnivean_environment]
This is a data set collecting CO2 concentrations from different depths under the snow at our wet tussock tundra site near Toolik Lake. Included is a read me file. Data is not temperature corrected.


24. Carbon Dioxide Fluxes for Native and Improved Grazinglands. [USDA.ARS.NGPRL.CO2FluxGraze]
(Adapted from abstract presented at ARS Carbon Storage Workshop, Baltimore, MD Jan 1999) PROBLEM: The grasslands ofthe Northern Great Plains are dominated by the C3 wheatgrass- needlegrass and C4 ...


25. Carbon Exchange on the Short-grass Steppe and the Northern Mixed Prairie. [USDA.ARS.RRRU.Carbonxchng]
(adapted from project abstracts) Problems: While the importance of rangelands for domestic animal grazing and wildlife have been appreciated for some time, their role in the global C cycle is only ...


26. Carbon Isotope Ration and Productivity of Dry Beans Under Water Limiting Environments [USDA0397]
The "Carbon Isotope Ration and Productivity of Dry Beans Under Water Limiting Environments" study investigates the genetic and physiological aspects of gas exchange properties in beans that appear ...


27. Carbon Isotopic Values of Alkanes Extracted from Paleosols [carbon_isotopic_values_of_alkanes_extracted_from_paleosols]
Dataset consists of compound specific carbon isotopic values of alkanes extracted from paleosols. Values represent the mean of duplicate measurements.


28. 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 ...


29. Carbon and Nitrogen Balance of a Northern Mixed-grass Prairie as Influenced by Grazing [USDA.ARS.RRRU.MixedGrassCarbon]
(Adapted from Abstract presented at ARS Carbon Storage Workshop, Baltimore, MD, Jan 1999) Problem: Rangeland health and sustainable productivity of our rangelands are becoming a key issues in developing ...


30. Carbon, Nitrogen and Phosphorus Changes in CRP Lands [USDA.ARS.CGPRS.CNPcrp]
(adapted from abstract presented at ARS Carbon Storage Workshop, Jan 1999 Baltimore, MD) Problem: Marginal, highly erodible croplands have been taken out of production and replanted to grasslands ...


31. Characterization and Evaluation of biologically mediated carbon fluxes in pelagic system, pCO2 surface levels, and vertical carbon flux on the Concepcion shelf. [GLOBEC_043_CHL_007]   PARENT METADATA
Characterization and Evaluation of the biologically mediated carbon fluxes in the pelagic system, pCO2 surface levels, and the vertical carbon flux towards the benthic system during upwelling and ...


32. Chemical and Physical Characteristics of the Great Lakes (1965-1978) [GLERL0002]
The yearly investigations for the years 1965 to 1974 were formulated and directed by Dr. Arthur P. Pinsak (retired). The 1975 cruises were planned and directed by Gerald L. Bell and Dr. Richard L. ...


33. Coastal Forest Chronosequences, British Columbia, Canada [Canada_CFS_CoastForestChrono]
In coastal British Columbia, mild climates and infrequent disturbance favour the development of long-lived forests with trees of great stature. These forests are admired the world over for the magnificent ...


34. Cold adaptation and functionality of the Antarctic Coastal Benthic Zones [ASAC_1165]
Antarctic sediments and sea-ice are important regulators in global biogeochemical and atmospheric cycles. These ecosystems contain a diverse range of bacteria whose biogeochemical roles remains largely ...


35. Collaborative Research: Salpa Thompsoni in the Southern Ocean: Bioenergetics, Population Dynamics and Biogeochemical Impact [NSF-ANT03-38290]
Salps are planktonic grazers that have a life history, feeding biology and population dynamic strikingly different from krill, copepods or other crustacean zooplankton. Salps can occur in very dense ...


36. Collection of marine sediment, algae, invertebrate and fish samples from multiple sites at diveable depths in the Ross Sea Region [K065_2008_2009_NZ_1]
In order to resolve the contribution of microbes (bacteria) in the benthic food web under the sea ice in Antarctica and to determine the level of recycling of carbon that occurs in the community, ...


37. Columbia River Land Margin Ecosystem Research Project Datasets [nsflmercretmdparent]
Land-Margin Ecosystem Research in the Columbia River Estuarine Turbidity Maximum (CRETM) is an interdisciplinary approach to investigating couplings between hydrological, geochemical and ecological ...


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 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 ...


40. DISCOVERY-FLEXICON: FLEXIbility and CONstraints in life histories [GB-NERC-BAS-PDC-00516]
FLEXICON is investigating the life-cycles of some of the world''s most durable and abundant organisms that are vital to the Earth''s systems. Marine organism in the Southern Ocean must endure one ...


41. DISCOVERY-FOOD-WEBS: Scotia Sea FOOD-WEBS [GB-NERC-BAS-PDC-00514]
Ocean food webs modify the efficiency with which CO2 is absorbed from the atmosphere into the sea, fixed by phytoplankton in the surface layers and then transported to the ocean interior. This so-called ...


42. 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 ...


43. EYSEC: Ecosystem Dynamics and Sustainable Utilization of Marine Living Resources in the East China Sea and Yellow Sea [GLOBEC_022_CH_002]
EYSEC: Ecosystem Dynamics and Sustainable Utilization of Marine Living Resources in the East China Sea and Yellow Sea This programme is part of CHINA-GLOBEC. The aims of EYSEC are to: 1) ...


44. Ecological investigation of nitrogen sources and sinks in Lake Wilson and three catchment ponds in the Darwin Glacier region [K081_1992_1993_NZ_1]
Ecological investigations into the waters of the Darwin Glacier region (extreme southern end member to the Dry Valley system) were carried out to extend knowledge of microbial processes to high latitude ...


45. Effects of Global Climate Change on Carbon Cycling in Peatlands [USDA0570]
The purpose of "Effects of Global Climate Change on Carbon Cycling in Peatlands" is to evaluate the effects of global change on carbon balance in peatlands and on gaseous exchanges of carbon between ...


46. 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 ...


47. Estuarine Surface Water Nutrient Chemistry and Water Quality for North Inlet: Former Long-Term Ecological Research (LTER)/NIN003 [LTER_NIN003]
LTER - Long-Term Ecological Research Program/North Inlet Salt Marsh, South Carolina (NIN) LTER/NIN003 [Summary adapted from the LTER North Inlet Daily Water Sample (DWS) Data Documentation] The ...


48. Evolution and biogeochemical cycles of metal species in marine and lacustrine environments [MetalIonsInMarineAndLacustrEnv]
1995/96 Characterization of minor and trace metals in lacustrine ecosystems (Carezza Lake, Inexpressible Island, Tarn Flat, Edmondson Point). Determinations in lake waters, sediments, algae and soil. ...


49. Exopolysaccharides from Antarctic bacteria [ASAC_2348]
Exopolysaccharide (EPS) is complex sugar made by many microbes in the Antarctic marine environment. This project seeks to understand the ecological role of microbial EPS in the Southern Ocean, where ...


50. FONDAP-HUMBOLDT Programme [GLOBEC_023_CHL_001]   CHILD METADATA
FONDAP-HUMBOLDT Program - Circulation and Physical-Biological Interactions in the Humboldt Current System and their Impact upon Regional Biogeochemical Cycling 1997-2000 The FONDAP-Humboldt program ...


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