Effects of Urbanization on Stream Ecosystems in the Willamette River Basin and Surrounding Area, Oregon and Washington

Scientific Investigations Report 2006–5101–D

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5101–D

Figure - refer to figure caption for alternative text description

Figure 13. Relations between average total nitrogen concentrations and (A) urban intensity index (UII) and (B) percentage of urban plus agricultural land, Willamette River basin and surrounding area, Oregon and Washington.

Back to Table of Contents

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/sir/2006/5101-D
Page Contact Information: Publications Team
Page Last Modified: Thursday, 01-Dec-2016 19:24:02 EST