Grantee Research Project Results

2004 Progress Report: Developing Regional-scale Stressor Models for Managing Eutrophication in Coastal Marine Ecosystems, Including Interactions of Nutrients, Sediments, Land-use Change, and Climate Variability and Change

EPA Grant Number: R830882
Title: Developing Regional-scale Stressor Models for Managing Eutrophication in Coastal Marine Ecosystems, Including Interactions of Nutrients, Sediments, Land-use Change, and Climate Variability and Change
Investigators: Howarth, Robert W. , Marino, Roxanne M. , Swaney, Dennis P. , Boyer, Elizabeth W. , Scavia, Donald , Alber, Merryl
Institution: Cornell University
EPA Project Officer: Packard, Benjamin H
Project Period: March 1, 2003 through June 8, 2007
Project Period Covered by this Report: March 1, 2004 through June 8, 2005
Project Amount: $749,644
RFA: Developing Regional-Scale Stressor-Response Models for Use in Environmental Decision-making (2002) RFA Text | Recipients Lists
Research Category: Ecological Indicators/Assessment/Restoration , Aquatic Ecosystems , Climate Change

Objective:

The objectives of this research project are to develop: (1) a regional-scale model for analyzing nutrient inputs to coastal ecosystems; (2) a classification scheme for the comparative analysis of the sensitivity of coastal ecosystems to these nutrient inputs; and (3) quantitative approaches for evaluating how other stressors such as climate change, land-use change, and sediment fluxes interact with nutrient inputs to affect coastal ecosystems.

Progress Summary:

Progress to date has consisted of the development and preliminary testing of a watershed-scale nutrient transport model and a nutrient-phytoplankton-zooplankton (NPZ) model of estuarine response to nitrogen loading that we plan to use to develop a process-based estuarine classification scheme. Both of these models run in a spreadsheet platform which makes these tools easily disseminated.

Future Activities:

Major objectives for the next year include: (1) further development of the watershed model and preliminary testing in the upper Susquehanna and other northeastern US watersheds; (2) further development and analysis of the dynamics of the NPZ estuarine response model and comparison with available estuarine datasets; and (3) coupling of the terrestrial and estuarine response models.

Journal Articles on this Report : 2 Displayed | Download in RIS Format

Publications Views
Other project views:	All 59 publications	21 publications in selected types	All 12 journal articles

Publications
Type	Citation	Project	Document Sources
Journal Article	Howarth RW, Swaney DP, Boyer EW, Marino R, Jaworski N, Goodale C. The influence of climate on average nitrogen export from large watersheds in the Northeastern United States. Biogeochemistry 2006;79(1-2):163-186.	R830882 (2004) R830882 (Final)	Abstract: SpringerLink-Abstract Exit
Journal Article	Smedberg E, Morth C-M, Swaney DP, Humborg C. Modeling hydrology and silicon-carbon interactions in taiga and tundra biomes from a landscape perspective:implications for global warming feedbacks. Global Biogeochemical Cycles 2006;20:GB2014, doi:10.1029/2005GB002567.	R830882 (2004) R830882 (Final)	Abstract: American Geophysical Union-Abstract Exit

Supplemental Keywords:

acid deposition, adsorption, air, air pollution effects, anoxia, anthropogenic, anthropogenic stress, aquatic species vulnerability, atmosphere, atmospheric chemistry, atmospheric sciences, biodiversity, chemical transport, chemistry, Chesapeake Bay, climate, climate change, climate model, climate models, climate variability, climatic influence, coastal ecosystem, ecological effects, ecological models, ecosystem assessment, discharge, ecosystem protection/environmental exposure and risk, effluent, environmental chemistry, environmental measurement, environmental stress, estuary, eutrophication, global climate, global climate change, global change, hypoxia, land, land use, marine, meteorology, midatlantic, modeling, monitoring/modeling, nitrogen, nitrogen pollution, Northeast, nutrient fluxes, phosphorus, phosphorus pollution, plankton, precipitation, regional anthropogenic stresses, regional/scaling, sediments, soil, state, water, watersheds,, RFA, Scientific Discipline, Air, Ecosystem Protection/Environmental Exposure & Risk, climate change, Air Pollution Effects, Chemistry, Monitoring/Modeling, Regional/Scaling, Environmental Monitoring, Ecological Risk Assessment, Atmosphere, anthropogenic stress, coastal ecosystem, eutrophication, aquatic species vulnerability, biodiversity, environmental measurement, ecosystem assessment, meteorology, climatic influence, global change, anthropogenic, climate models, UV radiation, environmental stress, coastal ecosystems, plankton, ecological models, climate model, nutrient fluxes, Global Climate Change, land use, regional anthropogenic stresses, atmospheric chemistry, stressor response model

Relevant Websites:

http://www.eeb.cornell.edu/biogeo/epa-star/EPAstar.htm Exit

Progress and Final Reports:

Original Abstract

The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.