EPA Science Inventory

Ecosystem Services Derived from Headwater Catchments

Citation:

HILL, B. H., R. K. KOLKA, AND F. H. MCCORMICK. Ecosystem Services Derived from Headwater Catchments. Presented at North American Benthological Society Meeting, Providence, RI, May 22 - 26, 2011.

Description:

We used data from the USEPA’s wadeable streams assessment (WSA), US Forest Service’s forest inventory and analysis (FIA), and select USFS experimental forests (EF) to investigate potential ecosystems services derived from headwater catchments. C, N, and P inputs to these catchments were estimated from site measurements and atmospheric deposition models. C, N, and P sequestration in vegetation and soils were estimated from the proportion of the catchment in forests and vegetation and soils data from the forest inventory databases. C, N, and P export from catchments was estimated based on measured stream chemistry and flow, microbial respiration and denitrification, and extrapolating these from instantaneous to annual estimates. Water quality benefits were estimated by mass balance. N removal by headwater streams was modeled using ambient nitrate concentrations and stream depth. Water yields were calculated from site measurements and national-scale hydrographic models. These catchment-scale ecosystem services were correlated with atmospheric deposition and C, N, and P stoichiometry of stream chemistry. Valuations of these ecosystem services, based on market or substitution pricing, suggests the relative importance of headwater catchments.

Purpose/Objective:

Valuations of these ecosystem services, based on market or substitution pricing, suggests the relative importance of headwater catchments.

URLs/Downloads:

5450HILL.PDF   (PDF,NA pp, 138 KB,  about PDF)

Record Details:

Record Type: DOCUMENT (PRESENTATION/ABSTRACT)
Start Date: 05/22/2011
Completion Date: 05/22/2011
Record Last Revised: 11/29/2012
Record Created: 01/24/2011
Record Released: 01/24/2011
OMB Category: Other
Record ID: 232775

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL HEALTH AND ENVIRONMENTAL EFFECTS RESEARCH LAB

MID-CONTINENT ECOLOGY DIVISION

WATERSHED DIAGNOSTICS RESEARCH