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209 Titles Match Your Query
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51. 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 ...


52. 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 ...


53. 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. ...


54. 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 ...


55. 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 ...


56. 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, ...


57. 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 ...


58. 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 ...


59. 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 ...


60. 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 ...


61. 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 ...


62. 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 ...


63. 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) ...


64. 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 ...


65. 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 ...


66. 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 ...


67. 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 ...


68. 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. ...


69. 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 ...


70. 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 ...


71. Factors Affecting the Distribution of Juvenile Salmon in the Gulf of Alaska 2001-2003 [salmon_juv_diet_LTOP_CGOA]
The purpose of this research is to focus National Marine Fisheries Service studies on the GLOBEC region, augment oceanographic measurements and determine what biological and physical factors influence ...


72. Factors Affecting the Distribution of Juvenile Salmon in the Gulf of Alaska 2001-2004 [salmon_biodata_LTOP_CGOA]
Factors affecting the distribution of juvenile salmon in the Gulf of Alaska were examined to determine what biological and physical factors influence the distribution of juvenile salmon. CTD, ADCP ...


73. Farming Systems for Soil Quality and Economic Sustainability [USDA.ARS.NSDL.FarmSyst]
1. Climatic conditions in subtropical and warm temperate regions make it difficult to increase soil carbon storage, given current cropping practices coupled with the use of conventional tillage. ...


74. Fine Root Production [fine_root_production]
Measurements of fine root production to date made during the growing seasons of 2010 and 2011 in plots of a factorial warming x accelerated snowmelt field experiment. Measurements were made using ...


75. Free Air Carbon Dioxide (CO2) Enrichment (FACE) Program Data at Brookhaven National Laboratory (BNL/DOE) [FACE_BNL]
The Free Air CO2 Enrichment (FACE) program uses technologies capable of providing a means by which the environment around growing plants may be modified to realistically simulate future concentrations ...


76. Geochemical Monitoring of Restoration Progress [USGS_SOFIA_geochem_mon_restore_fy04]
Continued geochemical monitoring efforts will provide a measure of the progress and effects of restoration on environmental health and water quality, and complement biological monitoring of indicator ...


77. Global Model Reference Data, 0.5 x 0.5 degree grid-cell [EOSWEBSTER_Global_Ref]
The Global Model Reference Collection contains 3 datasets that have been used extensively in various biogeochemical process models, in addition to some basic data layers used in analyzing and aggregating ...


78. Global Patterns of Carbon Dioxide Emissions from Soils on a 0.5 Degree Grid Cell Basis, CDIAC/DB1015 [CDIAC_DB1015]
[Summary adopted from db1015 documentation] This database contains global, spatially explicit (0.5 degree grid cells) and temporally explicit (monthly and annual) model output of ...


79. Green Manure Replacement for Fallow : Effect on Soil Organic Matter [USDA.ARS.NPARL.GreenManureOM]
Problem: Soil organic carbon levels have declined to about 50% of their original levels in much of the Northern Great Plains due to intensive tillage and a wheat - fallow rotation. Findings: A field ...


80. 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 ...


81. HYDROGRAPHIC DATA OF THE LOC-IUEM/UBO [UBOC01]
ENGLISH Data collected by the Chemical Oceanography Laboratory (LOC/CHIMAR, France) in the frame of two main programs: 1) nitrogen fluxes in the food web, fluid transports for coastal systems and ...


82. Hydrologic Margins Research Project, 2004-2008, McMurdo Dry Valleys [B268_hydrol_margins_dvs_proj]
In this field research project, we investigated the soil hydrology, biogeochemistry, and microbial ecology along hydrologic gradients in soils adjacent to streams and lakes in Wright and Taylor Valleys. ...


83. 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 ...


84. 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 ...


85. IAI-Data-CRN_012_GPolo_CL72: Vegetation effects on soil in an arid ecosystem in the Patagonian steppe [IAIDIS734]   PARENT METADATA
The vegetation affects the soil beneath, and these changes could be important in arid ecosystems. The patagonian steppe is characterized by patches of grasses and shrubs. The objective of this study ...


86. IAI-Data-CRN_012_Sala_PozosN: Aboveground and belowground nitrogen cycle in the Patagonian steppe [IAIDIS740]   PARENT METADATA
The general objective of this experiment was to describe the aboveground and belowground nitrogen cycle in the Patagonian steppe. We used the Patagonian steppe as a model ecosystem because of the ...


87. IAI-Data-CRN_012_Yahdjian_drought: Drought effects on ecosystem functioning in a semiarid grass-shrub steppe South of Argentina [IAIDIS744]   PARENT METADATA
We studied drought effects on ecosystem functioning in a semiarid grass-shrub steppe South of Argentina. We designed a 2-year rainfall manipulation experiment where we decreased water input with rainout ...


88. IAI-Final Report_ISP1_080: Biogeochemical Determinants of Land-Cover Change and Land-Use In Savanna-Cultivation-Grazing Systems [IAIDIS454]
This dataset refers to Final Report of the ISP round I project number 080, which has the name "BIOGEOCHEMICAL DETERMINANTS OF LAND-COVER CHANGE AND LAND-USE IN SAVANNA-CULTIVATION-GRAZING SYSTEMS". ...


89. IAI-Presentation_CRN_001_Results_1: Biogeochemical Cycles under Landuse Change in the Semiarid America [IAIDIS588]
This dataset makes reference to the presentation used by Dr. Everaldo Sampaio (UFPE,Brazil) and Dr. Elke Noellemeyer (UNLP, Argentina) to present the results of the CRN project number 001, which has ...


90. IAI-Presentation_CRN_047_Results_1: Andean Amazon Rivers Analysis and Monitoring (AARAM) Project [IAIDIS616]   PARENT METADATA
This dataset makes reference to the presentation used by Dr. Michael McClain to present the results of the CRN project number 047. The project has participation in USA, Peru, Brasil, Bolivia, Colombia ...


91. Impact of Climate on Plant-soil Interactions and Carbon Budgets of Ponderosa Pine [USDA0592]
The purpose of the data in "Impact of Climate on Plant-soil Interactions and Carbon Budgets of Ponderosa Pine" is to determine if climate-driven shifts in biomass allocation enable ponderosa pine ...


92. Impact of Livestock Grazing on Carbon and Nitrogen Balance of a Short-grass Steppe [USDA.ARS.CGPRS.SGSgraze]
(adapted from project abstract) Problem: Grazing lands constitute about 55% ofthe total land surface of the United States, and have been estimated to contain 40,000 MMT of C in the top 2 m of the ...


93. Impacts of CO2 Enrichment on C Sequestration in Native Grasslands [USDA.ARS.SPNRU.CO2enrich]
(Adapted from abstract presented at ARS Carbon Storage Workshop, Baltimore MD, Jan 1999) Problems: During the past few decades the atmospheric concentration of CO2 has been increasing at historically ...


94. Influence of Tillage Management on Soil Quality and Fate of Agricultural Nitrogen [USDA.ARS.NRI.ECL.TillMngt]
(adapted from project description) Problem: The use of no-tillage cropping systems has increased as their advantages in sustainable crop production have been documented. This includes better maintenance ...


95. Integrated BIosphere Simulator (IBIS) Data Set [SAGE_LBA_IBIS]
The Earth's terrestrial (land-based) ecosystems are critically important to the welfare of humankind. Food, fiber, fresh water, medicines, and forest products are all derived from our terrestrial ...


96. Integration Analysis of North Adriatic Marine Ecosystem (ECOMADR) [ECOMADR]
Project aims to identify key components of the trophic web of marine ecosystem in the northern adriatic sea, and to provide a first assessment of energy fluxes among such compartments. Since in this ...


97. Interaction between Carbon and Sulfur Cycles in Antarctic Stratified Lakes and Fjords [ASAC_1166]
---- Public Summary from Project ---- The lakes and fjords of the Vestfold Hills region of Antarctica provide unique ecosystems for studying environmental changes in Antarctica over the past 8000 ...


98. Interannual Variability in Global Soil Respiration on a 0.5 Degree Grid Cell Basis (1980-1994), CDIAC/NDP-081 [CDIAC_NDP-081]
[Summary adopted from NDP-081 documentation] We used a climate-driven regression model to develop spatially resolved estimates of soil-CO2 emissions from the terrestrial land ...


99. Isotopes in Gases in Firn Air and Shallow Ice at the Proposed WAIS Drilling Site [white_0440498]
This is a multi-institutional project investigating gas concentrations and isotope ratios of gases in the upper part of the Inland WAIS ice core. The Stable Isotope Lab at INSTAAR of the University ...


100. Isotopic Values from Labeling Study at a Moist Acidic Tundra Site [isotopic_values_from_labeling_study_at_a_moist_acidic_tundra_site]
These data sets are from a summer and undersnow labeling studies.


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