Scientific Investigations Report 2007–5007
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5007
The authors wish to thank the Bureau of Reclamation, Bureau of Indian Affairs, and the Washington State Department of Ecology and groups such as conservation districts, irrigation districts, and the Yakama Nation that provided valuable support and access to their records during this study. The authors also thank Steven Wangemann of the Bureau of Indian Affairs for developing the soil database for the Yakama Nation irrigated lands, and Edward Young of the Bureau of Reclamation for providing many Geographic Information System databases and for constructing the initial land use/land cover database from the numerous data sources.