CHARACTERIZE INTERACTIONS BETWEEN ECOSYSTEM FUNCTIONING AND CHANGES IN CLIMATE, UV, AND LAND USE
Contact
Impact/Purpose:
The overall objective of this task is to develop quantitative relationships for assessing the vulnerability of aquatic resources to global change. The task will contribute experimental and modeling tools for assessments of the interactions of global climate and UV changes with coral reefs and selected watersheds and estuaries in the U.S. These activities are contributing primarily to two APGs in the ecosystems component of the Global Change Research Multiyear Plan: the 2006 APG (APG 3) on building the capacity to assess global change impacts on coastal aquatic ecosystems, including coral reefs and estuaries and the 2004 APG (APG 2) on building capacity to assess and respond to global change impacts on selected watersheds. One major task objective is to assess interactions of global warming and UV exposure that are contributing to the observed coral bleaching and disease. Our lab is working with scientists at the NHEERL Gulf Ecology Lab to characterize UV exposure and effects at several coral reef sites. Other research in this task is examining the interactions between UV-induced breakdown of refractory organic matter in estuaries and coastal areas that enhance UV penetration into the water and concurrently form biologically-labile nitrogen-, phosphorus- and carbon-containing substances that stimulate productivity and microbial activity. This task also involves research in central Brazil that is part of the Large Scale Biosphere Atmosphere Experiment (LBA). The objectives of this project are to assess the impacts of land use and climatic changes on soil nutrient cycles and microbiota, trace gas exchange and water quality in the Brazilian cerrado. This work involves a close collaboration between EPA and a group of scientists from the Department of Ecology, University of Brasilia, Brazil. Other objectives of this task are to assess the interactions of land use and climate changes with the ecological functioning of streams in watersheds of the Piedmont region of the southestern U.S.
Description:
Assessments of the long-term impacts of global changes in climate, ultraviolet (UV) radiation and land use on ecosystems require scientific data, concepts and models that describe the responses of ecosystem health to stresses related to the changes as well as information and models that describe human activities driving the changes. This research is developing tools for relating global environmental changes (climate variability and change, land use change, UV change) to changes in physical and chemical conditions in selected watersheds, estuaries and coral reefs. These changes in physicochemical conditions then will be linked to biological and ecological responses. Task activities related to global change and coral reefs will primarily focus on a case study in the Florida Keys, where extensive damage to coral reefs has occurred over the past few years. Other task activities are building assessment and response capacity for evaluating microbial and ecological responses to global change in selected watersheds. These activities include involvement in a Brazilian project that is examining how changes in land use and climate affect the biological, chemical, and physical functions of Amazonia and the Brazilian cerrado.
Record Details:
Record Type:PROJECTKeywords:
CLIMATE CHANGE, LAND USE CHANGE, NUTRIENT CYCLES, HABITAT,Related Records:
A BOOK REVIEW OF "ECOLOGICAL INDICATORS FOR THE NATION"Relationship Reason:A BOOK REVIEW OF "ECOLOGICAL INDICATORS FOR THE NATION"59426DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
ENVIRONMENTAL EFFECTS OF OZONE DEPLETION AND ITS INTERACTIONS WITH CLIMATE CHANGE: PROGRESS REPORT 2004
Relationship Reason:ENVIRONMENTAL EFFECTS OF OZONE DEPLETION AND ITS INTERACTIONS WITH CLIMATE CHANGE: PROGRESS REPORT 2004118663DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INTERACTIONS OF SOLAR UV RADIATION AND DISSOLVED ORGANIC MATTER IN AQUATIC ENVIRONMENTS
Relationship Reason:INTERACTIONS OF SOLAR UV RADIATION AND DISSOLVED ORGANIC MATTER IN AQUATIC ENVIRONMENTS116475DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INTERACTIONS OF LIGHT AND CHEMICAL REACTIONS IN THE AQUATIC ENVIRONMENT: KINETIC AND MECHANISTIC ASPECTS
Relationship Reason:INTERACTIONS OF LIGHT AND CHEMICAL REACTIONS IN THE AQUATIC ENVIRONMENT: KINETIC AND MECHANISTIC ASPECTS116474DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
ENVIRONMENTAL EFFECTS OF OZONE DEPLETION AND ITS INTERACTIONS WITH CLIMATE CHANGE: PROGRESS REPORT 2003
Relationship Reason:ENVIRONMENTAL EFFECTS OF OZONE DEPLETION AND ITS INTERACTIONS WITH CLIMATE CHANGE: PROGRESS REPORT 2003116415DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SEAGRASS AND CDOM IN THE FLORIDA KEYS
Relationship Reason:SEAGRASS AND CDOM IN THE FLORIDA KEYS116413DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
IMPACTS OF GLOBAL CHANGE ON UV EXPOSURE IN COASTAL SHELF REGIONS OF THE SOUTHEASTERN UNITED STATES
Relationship Reason:IMPACTS OF GLOBAL CHANGE ON UV EXPOSURE IN COASTAL SHELF REGIONS OF THE SOUTHEASTERN UNITED STATES116412DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
CHROMOPHORIC DISSOLVED ORGANIC MATTER (CDOM) DERIVED FROM DECOMPOSITION OF VARIOUS VASCULAR PLANT AND ALGAL SOURCES
Relationship Reason:CHROMOPHORIC DISSOLVED ORGANIC MATTER (CDOM) DERIVED FROM DECOMPOSITION OF VARIOUS VASCULAR PLANT AND ALGAL SOURCES116351DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INTERACTIONS OF CHANGING CLIMATE AND ULTRAVIOLET RADIATION IN AQUATIC AND TERRESTRIAL BIOGEOCHEMICAL CYCLES
Relationship Reason:INTERACTIONS OF CHANGING CLIMATE AND ULTRAVIOLET RADIATION IN AQUATIC AND TERRESTRIAL BIOGEOCHEMICAL CYCLES116350DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
TRACE GAS EMISSIONS FROM THE SOIL RELATED TO LAND-USE CHANGES IN THE CERRADO REGION
Relationship Reason:TRACE GAS EMISSIONS FROM THE SOIL RELATED TO LAND-USE CHANGES IN THE CERRADO REGION116349DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
NO FLUXES FROM SAVANNAS OF CENTRAL BRAZIL (CERRADO) SUBJECTED TO NITROGEN AND PHOSPHORUS FERTILIZATION
Relationship Reason:NO FLUXES FROM SAVANNAS OF CENTRAL BRAZIL (CERRADO) SUBJECTED TO NITROGEN AND PHOSPHORUS FERTILIZATION116348DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
ASSESSING THE IMPACTS OF LOCAL AND GLOBAL STRESSORS ON CORAL REEFS IN AMERICAN SAMOA
Relationship Reason:ASSESSING THE IMPACTS OF LOCAL AND GLOBAL STRESSORS ON CORAL REEFS IN AMERICAN SAMOA116346DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
MEETING AT PORTLAND, OR: CORAL RESPONSES TO CLIMATE AND LAND USE CHANGES
Relationship Reason:MEETING AT PORTLAND, OR: CORAL RESPONSES TO CLIMATE AND LAND USE CHANGES116345DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
CORAL CONDITION: HOW TO FATHOM THE DECLINE OF CORAL REEF ECOSYSTEMS
Relationship Reason:CORAL CONDITION: HOW TO FATHOM THE DECLINE OF CORAL REEF ECOSYSTEMS116343DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
VARIATIONS IN THE SPECTRAL PROPERTIES OF ESTUARINE WATER CAUSED BY CDOM PARTITIONING ONTO RIVER AND ESTUARINE SEDIMENTS
Relationship Reason:VARIATIONS IN THE SPECTRAL PROPERTIES OF ESTUARINE WATER CAUSED BY CDOM PARTITIONING ONTO RIVER AND ESTUARINE SEDIMENTS114003DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INTERACTIVE EFFECTS OF OZONE DEPLETION AND CLIMATE CHANGE ON BIOGEOCHEMICAL CYCLES
Relationship Reason:INTERACTIVE EFFECTS OF OZONE DEPLETION AND CLIMATE CHANGE ON BIOGEOCHEMICAL CYCLES105290DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
ROLE OF SEAGRASS (THALASSIA TESTUDINUM) AS A SOURCE OF CHROMOPHORIC DISSOLVED ORGANIC MATTER IN COASTAL SOUTH FLORIDA
Relationship Reason:ROLE OF SEAGRASS (THALASSIA TESTUDINUM) AS A SOURCE OF CHROMOPHORIC DISSOLVED ORGANIC MATTER IN COASTAL SOUTH FLORIDA104742DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOOXIDATION AND ITS EFFECTS ON THE CARBOXYL CONTENT OF DISSOLVED ORGANIC MATTER IN TWO COASTAL RIVERS IN THE SOUTHEASTERN UNITED STATES
Relationship Reason:PHOTOOXIDATION AND ITS EFFECTS ON THE CARBOXYL CONTENT OF DISSOLVED ORGANIC MATTER IN TWO COASTAL RIVERS IN THE SOUTHEASTERN UNITED STATES88274DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INTERACTIONS OF CLIMATE CHANGE AND UV RADIATION AS CORALS STRESSORS
Relationship Reason:INTERACTIONS OF CLIMATE CHANGE AND UV RADIATION AS CORALS STRESSORS87171DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SOIL FLUXES OF CO2, CO, NO AND N2O FROM AN OLD-PASTURE AND FROM NATIVE SAVANNA IN BRAZIL
Relationship Reason:SOIL FLUXES OF CO2, CO, NO AND N2O FROM AN OLD-PASTURE AND FROM NATIVE SAVANNA IN BRAZIL85598DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
RESPONSE OF THE SOIL MICROBIAL COMMUNITY TO FERTILIZATION PRACTICES IN AGRICULTURAL AND NATIVE CERRADO SYSTEMS IN BRAZIL
Relationship Reason:RESPONSE OF THE SOIL MICROBIAL COMMUNITY TO FERTILIZATION PRACTICES IN AGRICULTURAL AND NATIVE CERRADO SYSTEMS IN BRAZIL85196DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
NOX AND CO EMISSIONS FROM CERRADO PLANT LITTER
Relationship Reason:NOX AND CO EMISSIONS FROM CERRADO PLANT LITTER85007DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
CHROMOPHORIC DISSOLVED ORGANIC MATTER (CDOM) SOURCE CHARACTERIZATION IN THE LOUISIANA BIGHT
Relationship Reason:CHROMOPHORIC DISSOLVED ORGANIC MATTER (CDOM) SOURCE CHARACTERIZATION IN THE LOUISIANA BIGHT84928DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
DISSOLVED ORGANIC FLUOROPHORES IN SOUTHEASTERN US COASTAL WATERS: CORRECTION METHOD FOR ELIMINATING RAYLEIGH AND RAMAN SCATTERING PEAKS IN EXCITATION-EMISSION MATRICES
Relationship Reason:DISSOLVED ORGANIC FLUOROPHORES IN SOUTHEASTERN US COASTAL WATERS: CORRECTION METHOD FOR ELIMINATING RAYLEIGH AND RAMAN SCATTERING PEAKS IN EXCITATION-EMISSION MATRICES84926DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
RESPONSE OF SEDIMENTARY MICROBIAL COMMUNITIES TO DIFFERENT LAND USE PRACTICES AFFECTING HEADWATER STREAMS IN GEORGIA
Relationship Reason:RESPONSE OF SEDIMENTARY MICROBIAL COMMUNITIES TO DIFFERENT LAND USE PRACTICES AFFECTING HEADWATER STREAMS IN GEORGIA84723DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
ROLE OF THE PHOTO-FENTON REACTION IN THE PRODUCTION OF HYDROXYL RADICALS AND PHOTOBLEACHING OF COLORED DISSOLVED ORGANIC MATTER IN A COASTAL RIVER OF THE SOUTHEASTERN UNITED STATES
Relationship Reason:ROLE OF THE PHOTO-FENTON REACTION IN THE PRODUCTION OF HYDROXYL RADICALS AND PHOTOBLEACHING OF COLORED DISSOLVED ORGANIC MATTER IN A COASTAL RIVER OF THE SOUTHEASTERN UNITED STATES83794DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
UV EXPOSURE OF CORAL ASSEMBLAGES IN THE FLORIDA KEYS
Relationship Reason:UV EXPOSURE OF CORAL ASSEMBLAGES IN THE FLORIDA KEYS75671DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
EFFECT OF MANAGEMENT PRACTICES ON THE SOIL MICROBIAL COMMUNITY IN AGRICULTURAL AND NATIVE SYSTEMS IN BRAZIL
Relationship Reason:EFFECT OF MANAGEMENT PRACTICES ON THE SOIL MICROBIAL COMMUNITY IN AGRICULTURAL AND NATIVE SYSTEMS IN BRAZIL75478DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
BIOGEOCHEMICAL INDICATORS IN SMALL PIEDMONT STREAMS
Relationship Reason:BIOGEOCHEMICAL INDICATORS IN SMALL PIEDMONT STREAMS72064DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
USE OF PHOSPHOLIPID FATTY ACID PROFILES TO STUDY THE MICROBIAL COMPOSITION OF CYANOBACTERIAL MATS IN CABO ROJO SOLAR SALTERNS
Relationship Reason:USE OF PHOSPHOLIPID FATTY ACID PROFILES TO STUDY THE MICROBIAL COMPOSITION OF CYANOBACTERIAL MATS IN CABO ROJO SOLAR SALTERNS66305DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SOLAR ULTRAVIOLET RADIATION AND AQUATIC CARBON, NITROGEN, SULFUR AND METALS CYCLES
Relationship Reason:SOLAR ULTRAVIOLET RADIATION AND AQUATIC CARBON, NITROGEN, SULFUR AND METALS CYCLES65976DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
UV RADIATION EFFECTS ON MICROBES AND MICROBIAL PROCESSES
Relationship Reason:UV RADIATION EFFECTS ON MICROBES AND MICROBIAL PROCESSES65877DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
ABSORBANCE, ABSORPTION COEFFICIENT, AND APPARENT QUANTUM YIELD: A COMMENT ON AMBIGUITY IN THE USE OF THESE OPTICAL CONCEPTS
Relationship Reason:ABSORBANCE, ABSORPTION COEFFICIENT, AND APPARENT QUANTUM YIELD: A COMMENT ON AMBIGUITY IN THE USE OF THESE OPTICAL CONCEPTS65521DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
DETERMINATION OF APPARENT QUANTUM YIELD SPECTRA FOR THE FORMATION OF BIOLOGICALLY LABILE PHOTOPRODUCTS
Relationship Reason:DETERMINATION OF APPARENT QUANTUM YIELD SPECTRA FOR THE FORMATION OF BIOLOGICALLY LABILE PHOTOPRODUCTS65447DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
STABLE CARBON ISOTOPE RATIO AND COMPOSITION OF MICROBIAL FATTY ACIDS IN TROPICAL SOILS
Relationship Reason:STABLE CARBON ISOTOPE RATIO AND COMPOSITION OF MICROBIAL FATTY ACIDS IN TROPICAL SOILS65399DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SEASONAL SOIL FLUXES OF CARBON MONOXIDE IN BURNED AND UNBURNED BRAZILIAN SAVANNAS
Relationship Reason:SEASONAL SOIL FLUXES OF CARBON MONOXIDE IN BURNED AND UNBURNED BRAZILIAN SAVANNAS65152DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SOIL EMISSIONS OF N2O, NO AND CO2 IN BRAZILIAN SAVANNAS: EFFECTS OF VEGETATION TYPE, SEASONALITY, AND PRESCRIBED FIRES
Relationship Reason:SOIL EMISSIONS OF N2O, NO AND CO2 IN BRAZILIAN SAVANNAS: EFFECTS OF VEGETATION TYPE, SEASONALITY, AND PRESCRIBED FIRES65099DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INDICATORS OF UV EXPOSURE IN CORALS AND THEIR RELEVANCE TO GLOBAL CLIMATE CHANGE AND CORAL BLEACHING
Relationship Reason:INDICATORS OF UV EXPOSURE IN CORALS AND THEIR RELEVANCE TO GLOBAL CLIMATE CHANGE AND CORAL BLEACHING65094DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOCHEMICALLY-INDUCED ALTERATION OF STABLE CARBON ISOTOPE RATIOS (DELTA C-13) IN TERRIGENOUS DISSOLVED ORGANIC CARBON
Relationship Reason:PHOTOCHEMICALLY-INDUCED ALTERATION OF STABLE CARBON ISOTOPE RATIOS (DELTA C-13) IN TERRIGENOUS DISSOLVED ORGANIC CARBON65093DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
VARIABILITY IN THE DISTRIBUTION OF LIPID BIOMARKERS AND THEIR MOLECULAR ISOTOPIC COMPOSITION IN ALTAMAHA ESTUARINE SEDIMENTS: IMPLICATIONS FOR THE RELATIVE CONTRIBUTION OF ORGANIC MATTER FROM VARIOUS SOURCES
Relationship Reason:VARIABILITY IN THE DISTRIBUTION OF LIPID BIOMARKERS AND THEIR MOLECULAR ISOTOPIC COMPOSITION IN ALTAMAHA ESTUARINE SEDIMENTS: IMPLICATIONS FOR THE RELATIVE CONTRIBUTION OF ORGANIC MATTER FROM VARIOUS SOURCES64978DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
CARBON LOSS AND OPTICAL PROPERTY CHANGES DURING LONG-TERM PHOTOCHEMICAL AND BIOLOGICAL DEGRADATION OF ESTUARINE DISSOLVED ORGANIC MATTER
Relationship Reason:CARBON LOSS AND OPTICAL PROPERTY CHANGES DURING LONG-TERM PHOTOCHEMICAL AND BIOLOGICAL DEGRADATION OF ESTUARINE DISSOLVED ORGANIC MATTER64924DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
CARBON TRACE GASES IN LAKE AND BEAVER POND ICE NEAR THOMPSON, MANITOBA, CANADA
Relationship Reason:CARBON TRACE GASES IN LAKE AND BEAVER POND ICE NEAR THOMPSON, MANITOBA, CANADA64923DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
OZONE DEPLETION AND THE AIR-SEA EXCHANGE OF GREENHOUSE AND CHEMICALLY REACTIVE TRACE GASES
Relationship Reason:OZONE DEPLETION AND THE AIR-SEA EXCHANGE OF GREENHOUSE AND CHEMICALLY REACTIVE TRACE GASES64916DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
TRACE GAS AND NUTRIENT CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT
Relationship Reason:TRACE GAS AND NUTRIENT CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT63128DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
FATTY ACID STABLE ISOTOPE INDICATORS OF MICROBIAL CARBON SOURCE IN TROPICAL SOILS
Relationship Reason:FATTY ACID STABLE ISOTOPE INDICATORS OF MICROBIAL CARBON SOURCE IN TROPICAL SOILS63026DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
MICROBIAL COMMUNITY DIVERSITY AND CARBON UTILIZATION IN ESTUARINE ECOSYSTEMS OF SOUTHEASTERN U.S.A.
Relationship Reason:MICROBIAL COMMUNITY DIVERSITY AND CARBON UTILIZATION IN ESTUARINE ECOSYSTEMS OF SOUTHEASTERN U.S.A.62541DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
ROLE OF DOM PHOTOREACTIONS IN CONTROLLING UV EXPOSURE OF CORAL ASSEMBLAGES IN THE FLORIDA KEYS
Relationship Reason:ROLE OF DOM PHOTOREACTIONS IN CONTROLLING UV EXPOSURE OF CORAL ASSEMBLAGES IN THE FLORIDA KEYS62495DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SHEDDING LIGHT ON CORALS HEALTH: INTERACTIONS OF CLIMATE CHANGE AND SOLAR RADIATION WITH BLEACHING
Relationship Reason:SHEDDING LIGHT ON CORALS HEALTH: INTERACTIONS OF CLIMATE CHANGE AND SOLAR RADIATION WITH BLEACHING62432DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
NITROUS OXIDE CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT
Relationship Reason:NITROUS OXIDE CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT62416DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
NOX AND CO EMISSIONS FROM SOIL AND SURFACE LITTER IN A BRAZILIAN SAVANNA
Relationship Reason:NOX AND CO EMISSIONS FROM SOIL AND SURFACE LITTER IN A BRAZILIAN SAVANNA62289DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
USE OF FATTY ACID STABLE CARBON ISOTOPE RATIO TO INDICATE MICROBIAL CARBON SOURCE IN TROPICAL SOILS
Relationship Reason:USE OF FATTY ACID STABLE CARBON ISOTOPE RATIO TO INDICATE MICROBIAL CARBON SOURCE IN TROPICAL SOILS61929DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SOLAR UV RADIATION AND AQUATIC BIOGEOCHEMISTRY
Relationship Reason:SOLAR UV RADIATION AND AQUATIC BIOGEOCHEMISTRY61898DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
STRUCTURE OF MICROBIAL COMMUNITIES IN NATIVE AND CONVERTED SAVANNA AREAS OF CENTRAL BRAZIL
Relationship Reason:STRUCTURE OF MICROBIAL COMMUNITIES IN NATIVE AND CONVERTED SAVANNA AREAS OF CENTRAL BRAZIL61886DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
MICROBIAL DIVERSITY IN SURFACE SEDIMENTS: A COMPARISON OF TWO ESTUARINE CONTINUUMS
Relationship Reason:MICROBIAL DIVERSITY IN SURFACE SEDIMENTS: A COMPARISON OF TWO ESTUARINE CONTINUUMS61770DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
EFFECTS OF FERTILIZER TYPE (CHICKEN LITTER VS. INORGANIC FERTILIZER) AND CATTLE GRAZING ON THE SOIL MICROBIAL COMMUNITY
Relationship Reason:EFFECTS OF FERTILIZER TYPE (CHICKEN LITTER VS. INORGANIC FERTILIZER) AND CATTLE GRAZING ON THE SOIL MICROBIAL COMMUNITY61057DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INTERACTIONS OF SOLAR ULTRAVIOLET RADIATION AND DISSOLVED ORGANIC MATTER IN FRESHWATER AND MARINE ENVIRONMENTS
Relationship Reason:INTERACTIONS OF SOLAR ULTRAVIOLET RADIATION AND DISSOLVED ORGANIC MATTER IN FRESHWATER AND MARINE ENVIRONMENTS61049DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INFLUENCE OF DISSOLVED ORGANIC MATTER ON AGROCHEMICAL PHOTOREACTIONS IN AQUATIC ENVIRONMENTS
Relationship Reason:INFLUENCE OF DISSOLVED ORGANIC MATTER ON AGROCHEMICAL PHOTOREACTIONS IN AQUATIC ENVIRONMENTS60998DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
EFFECTS OF PRESCRIBED FIRES ON NITROGEN FLUXES IN SAVANNA FORMATIONS OF CENTRAL BRAZIL
Relationship Reason:EFFECTS OF PRESCRIBED FIRES ON NITROGEN FLUXES IN SAVANNA FORMATIONS OF CENTRAL BRAZIL60997DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOCHEMICAL EFFECTS ON NOX AND CO EMISSIONS IN A BRAZILIAN SAVANNA
Relationship Reason:PHOTOCHEMICAL EFFECTS ON NOX AND CO EMISSIONS IN A BRAZILIAN SAVANNA60996DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOREACTIONS IN SURFACE WATERS AND THEIR ROLE IN BIOGEOCHEMICAL CYCLES
Relationship Reason:PHOTOREACTIONS IN SURFACE WATERS AND THEIR ROLE IN BIOGEOCHEMICAL CYCLES60995DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SOIL EMISSIONS OF CO2 AND CO IN TROPICAL SAVANNAS OF CENTRAL BRAZIL UNDER DIFFERENT FIRE REGIMES
Relationship Reason:SOIL EMISSIONS OF CO2 AND CO IN TROPICAL SAVANNAS OF CENTRAL BRAZIL UNDER DIFFERENT FIRE REGIMES60994DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
ASSESSING UV IRRADIANCE IN CARIBBEAN REEF CORAL AND DNA DAMAGE IN THEIR CORAL AND ZOOXANTHELLAE
Relationship Reason:ASSESSING UV IRRADIANCE IN CARIBBEAN REEF CORAL AND DNA DAMAGE IN THEIR CORAL AND ZOOXANTHELLAE60993DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOCHEMICALLY-INDUCED TRANSFORMATIONS OF DISSOLVED ORGANIC MATTER IN RIVERINE WATERS
Relationship Reason:PHOTOCHEMICALLY-INDUCED TRANSFORMATIONS OF DISSOLVED ORGANIC MATTER IN RIVERINE WATERS60992DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
USE OF GC-MS/COMBUSTION/IRMS TO IDENTIFY AND DETERMINE THE STABLE CARBON ISOTOPIC RATIO OF INDIVIDUAL LIPIDS
Relationship Reason:USE OF GC-MS/COMBUSTION/IRMS TO IDENTIFY AND DETERMINE THE STABLE CARBON ISOTOPIC RATIO OF INDIVIDUAL LIPIDS60893DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOCHEMICAL AND BIOLOGICAL DEGRADATION OF CDOM IN WATERS FROM SELECTED COASTAL REGIONS OF THE SOUTHEASTERN UNITED STATES
Relationship Reason:PHOTOCHEMICAL AND BIOLOGICAL DEGRADATION OF CDOM IN WATERS FROM SELECTED COASTAL REGIONS OF THE SOUTHEASTERN UNITED STATES60787DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
EFFECT OF TEMPERATURE ON THE C ISOTOPIC VALUE OF MICROBIAL LIPIDS APPLIED TO DETERMINE C USAGE IN MICROBIAL COMMUNITIES
Relationship Reason:EFFECT OF TEMPERATURE ON THE C ISOTOPIC VALUE OF MICROBIAL LIPIDS APPLIED TO DETERMINE C USAGE IN MICROBIAL COMMUNITIES60473DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
IMPACTS OF LAND USE CHANGE AND FIRE ON NUTRIENT AND CARBON CYCLES AND TRACE GAS EXCHANGE IN SOILS OF THE CERRADO IN CENTRAL BRAZIL
Relationship Reason:IMPACTS OF LAND USE CHANGE AND FIRE ON NUTRIENT AND CARBON CYCLES AND TRACE GAS EXCHANGE IN SOILS OF THE CERRADO IN CENTRAL BRAZIL60345DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
SPECIATION OF ARSENIC IN EXPOSURE ASSESSMENT MATRICES
Relationship Reason:SPECIATION OF ARSENIC IN EXPOSURE ASSESSMENT MATRICES60271DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
RELATIONS BETWEEN LAND USE AND STREAM NUTRIENT CONCENTRATIONS FOR SMALL WATERSHEDS IN THE GEORGIA PIEDMONT
Relationship Reason:RELATIONS BETWEEN LAND USE AND STREAM NUTRIENT CONCENTRATIONS FOR SMALL WATERSHEDS IN THE GEORGIA PIEDMONT60198DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INDICATORS OF UV EXPOSURE IN CORALS: RELEVANCE TO GLOBAL CLIMATE CHANGE AND CORAL BLEACHING
Relationship Reason:INDICATORS OF UV EXPOSURE IN CORALS: RELEVANCE TO GLOBAL CLIMATE CHANGE AND CORAL BLEACHING59969DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INDICATORS OF UV EXPOSURE IN CORAL AND THEIR RELEVANCE TO GLOBAL CLIMATE CHANGE AND CORAL BLEACHING
Relationship Reason:INDICATORS OF UV EXPOSURE IN CORAL AND THEIR RELEVANCE TO GLOBAL CLIMATE CHANGE AND CORAL BLEACHING59964DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOCHEMICAL ALTERATION OF DISSOLVED ORGANIC MATTER: EFFECTS ON THE CONCENTRATION AND ACIDITIES OF IONIZABLE SITES IN DISSOLVED ORGANIC MATTER IN THE SATILLA RIVER OF GEORGIA, USA
Relationship Reason:PHOTOCHEMICAL ALTERATION OF DISSOLVED ORGANIC MATTER: EFFECTS ON THE CONCENTRATION AND ACIDITIES OF IONIZABLE SITES IN DISSOLVED ORGANIC MATTER IN THE SATILLA RIVER OF GEORGIA, USA59961DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
TRACE GAS CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT
Relationship Reason:TRACE GAS CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT59811DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOCHEICAL PRODUCTION OF HYDROXYL RADICAL IN NATURAL WATER - THE ROLE OF IRON AND DISSOLVED ORGANIC MATTER
Relationship Reason:PHOTOCHEICAL PRODUCTION OF HYDROXYL RADICAL IN NATURAL WATER - THE ROLE OF IRON AND DISSOLVED ORGANIC MATTER59788DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
EFFECTS OF SUNLIGHT ON CARBOXYL CONTENT OF DISSOLVED ORGANIC MATTER IN THE SATILLA RIVER OF GEORGIA, UNITED STATES
Relationship Reason:EFFECTS OF SUNLIGHT ON CARBOXYL CONTENT OF DISSOLVED ORGANIC MATTER IN THE SATILLA RIVER OF GEORGIA, UNITED STATES59787DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
INTERACTIONS OF NUTRIENT AND CARBON CYCLES AND TRACE GAS EXCHANGE WITH LAND USE CHANGE AND FIRE IN THE CERRADO OF CENTRAL BRAZIL
Relationship Reason:INTERACTIONS OF NUTRIENT AND CARBON CYCLES AND TRACE GAS EXCHANGE WITH LAND USE CHANGE AND FIRE IN THE CERRADO OF CENTRAL BRAZIL59678DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
PHOTOREACTIVITY OF CHROMOPHORIC DISSOLVED ORGANIC MATTER (CDOM) DERIVED FROM DECOMPOSITION OF VARIOUS VASCULAR PLANT AND ALGAL SOURCES
Relationship Reason:PHOTOREACTIVITY OF CHROMOPHORIC DISSOLVED ORGANIC MATTER (CDOM) DERIVED FROM DECOMPOSITION OF VARIOUS VASCULAR PLANT AND ALGAL SOURCES59449DOCUMENT1.0A PRODUCT OF THE PROJECTREVIEWEDPUBLICORDNERL
Project Information:
Progress :Two APMs were met as EPA reports during FY03 and the results of the research were communicated by presentations at scientific meetings, briefings of the Global Research Coordination Team (RCT) and program office personnel, and through publications of peer reviewed journal articles.Relevance :This research is relevant to the Administrator's strategic guiding principles to provide strong science and data in support of credible and defensible decisions to maintain public trust and confidence. The task contributes to protection of ecosystem health, including adaptation strategies, under global change. The research results in models, peer-reviewed scientific publications and presentations on the interactions between global changes in land use, climate and UV and ecosystem function, including interactions between global change and biological and abiotic transformations that control carbon and nutrient cycling and trace gas exchange in aquatic and terrestrial ecosystems
Major Clients: OAR (Parker, Keating, Titus); OWOW (Potts, Lousberg); OW (Gibson); OIA (Hill-Macon)
Major Outside Collaborators: M.A. Moran, E. Bartels, L. Hansen, M. Bustamante, D. Markewitz
Clients :OAR (Sharon Saile, Erin Birgfeld, Jeff Cohen, Reva Rubinstein OWOW (Doug Norton, Laura Gabanski, Kenneth Potts}, IPCC
Project IDs:
ID Code :5558Project type :OMIS