Title |
Ecological Effects on Streams from Forest Fertilization-Literature Review and Conceptual Framework for Future Study in the Western Cascades |
Creator |
Anderson, Chauncey W. |
Subject |
Water quality; Water conservation; Nutrient pollution of water; Stream ecology; Watersheds |
Spatial Coverage |
Portland (Or.); Oregon |
Description |
Fertilization of forests with urea-nitrogen has been studied numerous times for its effects on water quality. Stream nitrogen concentrations following fertilization are typically elevated during winter, including peaks in the tens-of-thousands of parts per billion range, with summer concentrations often returning to background or near-background levels. Despite these increases, waterquality criteria for nitrogen have rarely been exceeded. However, such criteria are targeted at fish toxicity or human health and are not relevant to concentrations that could cause ecological disturbances. Studies of the responses of stream biota to fertilization have been rare and have targeted either immediate, toxicity-based responses or used methods insensitive to ongoing ecological processes. This report reviews water-quality studies following forest fertilizations, emphasizing Cascade streams in the Pacific Northwest and documented biological responses in those streams. A conceptual model predicting |
Publisher |
U.S. Geological Survey |
Contributors |
The Bureau Of Land Management |
Date |
2002 |
Type |
Text |
Format |
application/pdf |
Digitization Specifications |
pdf file copied from USGS website (http://or.water.usgs.gov/pubs ). Uploaded into CONTENTdm version 3.7. |
Identifier |
http://or.water.usgs.gov/pubs/WRIR01-4047/ |
Source |
Anderson, Chauncey W., Ecological Effects on Streams from Forest Fertilization-Literature Review and Conceptual Framework for Future Study in the Western Cascades, Portland, Oregon: U.S. Geological Survey Water-Resources Investigations Report 01-4047, p56 |
Language |
eng |
Rights Management |
Public Domain, Courtesy of the USGS |
Holding Institution |
University of Utah |
ARK |
ark:/87278/s6v123pk |
Setname |
wwdl_er |
ID |
1145745 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6v123pk |