- Causes, consequences, and regional extent
of calcium depletion in the forests of the Appalachian Plateau.
The objective is to determine dendrochronological, dendrochemical,
and biochemical sampling, coupled with soil and water sampling,
can be used to differentiate high stress, high risk areas from low
stress, low risk areas in forests of the Delaware River Basin. The
study will combine forestry and hydrological research at an intensive
monitoring area in the Catskills with regional measurements at USFS
FHM and FIA plots, and USGS water monitoring stations and water
- Forest biomass and production in the Delaware
River Basin: Augmenting and verifying FIA-based estimates of carbon
stocks and fluxes.
This project will provide detailed estimates of carbon storage and
flux, and will use enhanced measurements at FIA plots to develop
and validate ecosystem process models that are typically applied
at large spatial scales. USGS monitoring of surface water quality
and soil nutrients will improve estimates of carbon export at the
intensive sites and regional scales.
- Protocols for Identification and Monitoring
of Forests Vulnerable to Non-native Invasive Pests.
Better methods are needed to identify and monitor nonnative forest
pests that are commonly introduced through Eastern U.S. ports. FIA
inventory data will be analyzed with physiograpic, climatic, and
pest distribution data to create maps of forest vulnerability to
specific pests. Indicators of forest vulnerability will be developed
at intensive research sites. Hydrologic data from the USGS will
be used to track the effects of infestations on nutrient status
and export from the landscape.
- Forest Fragmentation and associated ecosystem
changes in the Delaware River Basin.
Landscape characteristics affect ecosystem processes, nutrient export
from forests, and the spread of invasive pests. Remote sensing and
GIS technology will be used at intensive research sites to characterize
forest fragmentation, determine ecosystem processes affected by
fragmentation, and improve predictive models. Multiple sources of
monitoring information will be linked to accurately characterize
landscapes, improve ground-truthing, and thus increase the resolution
- The effect of terrestrial ecosystem health
and land use on the hydrology, habitat, and water quality of the
Delaware River and Estuary.
Large rivers can serve as integrators for assessing the effect of
multiple stresses on broad landscapes. Watersheds are thus useful
landscape delineators for assessing regional changes in ecosystem
function. Process-based and empirical regional models will be used
to predict the combined and individual effects of multiple environmental
stresses (such as land use change, atmospheric deposition, erosion,
and others) on aquatic ecosystems in the Watershed. Model predictions
will be compared with measured data at specific monitoring stations
along the main stem of the Delaware River. Management scenarios
to reduce ecosystem degradation will then be recommended based on
the results of this analysis.
Intensive Research Site | Next:
Home Page | Site
Problems with this site
can be directed to the
Last Update 04/11//03