The vast majority of theses in this collection are open access and freely available. There are a small number of theses that have access restricted to the WWU campus. For off-campus access to a thesis labeled "Campus Only Access," please log in here with your WWU universal ID, or talk to your librarian about requesting the restricted thesis through interlibrary loan.

Date Permissions Signed

2-21-2014

Date of Award

2014

Document Type

Masters Thesis

Degree Name

Master of Science (MS)

Department

Environmental Studies

First Advisor

Bach, Andrew J.

Second Advisor

Rossiter, David A.

Third Advisor

Pogue, Kevin R.

Abstract

This study attempts to assess whether or not geographic information systems (GIS) is an effective tool for identifying potential sites for growing wine grapes without the use of supplemental irrigation water. Using spatial analysis techniques with GIS technology, this study evaluated the Walla Walla Valley American Viticultural Area (AVA) and the immediate region in Washington and Oregon for dryland-farmed viticulture site potential. Cabernet Sauvignon was used as a test variety as an exercise in siting a potential new vineyard planting. The areas where environmental factors were estimated to be both sufficient for vines to survive without irrigation and the best potential for producing quality wine grapes were categorized into a suitability area. This site selection identified approximately 2000 hectares of land suitable for dryfarming Cabernet Sauvignon. Of these 2000 hectares, about 60 hectares are currently planted with vineyards, leaving 1940 hectares of suitable lands in the study area. This area was compared against the rest of the study area in the occurrence of existing dryland vineyards to evaluate the effectiveness of GIS in this application. The majority of known dryland vineyards in the area were found within or immediately adjacent to the suitability area. Results from this study suggest that geographic information systems may be used to identify dryland vineyard site potential.

Type

Text

Publisher

Western Washington University

OCLC Number

872163125

Digital Format

application/pdf

Geographic Coverage

Walla Walla Valley American Viticultural Area (Or. and Wash.)

Genre/Form

Academic theses

Language

English

Rights

Copying of this thesis in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.

Included in

Geography Commons

Share

COinS