Link to USGS Home Page

U.S. Geological Survey
Open-File Report 02-014

Land Use Change and Effects on Water
Quality and Ecosystem Health in the
Lake Tahoe Basin, Nevada and California
: Year-1 Progress

By William Forney, Christian Raumann, Timothy B. Minor,
J. LaRue Smith, John Vogel, and Robert Vitales


As part of the requirements for the Geographic Research and Applications Prospectus grants, this Open-File Report is the second of two that resulted from the first year of the project. The first Open-File Report (OFR 01-418) introduced the project, reviewed the existing body of literature, and outlined the research approach. This document will present an update of the research approach and offer some preliminary results from multiple efforts, specifically, the production of historical digital orthophoto quadrangles, the development of the land use/land cover (LULC) classification system, the development of a temporal transportation layer, the classification of anthropogenic cover types from the IKONOS imagery, a preliminary evaluation of landscape ecology metrics (quantification of spatial and temporal patterns of ecosystem structure and function with appropriate indices) and their utility in comparing two LULC systems, and a new initiative in community-based science and facilitation.

Download this report as a single Adobe PDF file [1.9 MB] or as a Microsoft Word file [3 MB].

Download free PDF Reader software and learn more about Adobe Reader

Visit to learn about converting PDF to HTML.

For questions about the scientific content of this report, contact William Forney

This report is only available on the Web.

[an error occurred while processing this directive]