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Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 1,000 books authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 975
Tamarisk control on public lands in the desert of southern California: two case studies Tamarisk control on public lands in the desert of southern California: two case studies
As a land manager, the Federal Government faces enormous challenges from exotic pest invasions and associated changes to the structure and stability of native ecosystems (Bureau of Land Management, 1988). On public lands administered by the Bureau of Land Management (BLM) alone, it is estimated that almost three million hectares are occupied by invasive exotic plant species (weeds)...
Databases, data integration, and expert systems: new directions in mineral resource assessment and mineral exploration Databases, data integration, and expert systems: new directions in mineral resource assessment and mineral exploration
Overcoming future difficulties in searching for ore deposits deeper in the earth's crust will require closer attention to the collection and analysis of more diverse types of data and to more efficient use of current computer technologies. Computer technologies of greatest interest include methods of storage and retrieval of resource information, methods for integrating geologic...
Authors
Richard B. McCammon
Occurrence and yields of triazine herbicides in the Susquehanna river and tributaries during base-flow conditions in the Lower Susquehanna River Basin, Pennsylvania and Maryland, June 1993 Occurrence and yields of triazine herbicides in the Susquehanna river and tributaries during base-flow conditions in the Lower Susquehanna River Basin, Pennsylvania and Maryland, June 1993
No abstract available.
Authors
Kevin J. Breen, Andrew J. Gavin, Ronald R. Schnabel
Methods for measuring the effectiveness of tortoise-proof fences and culverts along Highway 58, California Methods for measuring the effectiveness of tortoise-proof fences and culverts along Highway 58, California
No abstract available.
Authors
W. I. Boarman, M. Sazaki
A program to maintain the endangered razorback suckers in a highly modified riverine habitat A program to maintain the endangered razorback suckers in a highly modified riverine habitat
No abstract available.
Authors
G. Mueller, T. Burke, M. Horn
Managing reservoir storage for fish production Managing reservoir storage for fish production
No abstract available.
Authors
T. J. Waddle, J. Sandelin
Surface cover maps of the Rio Grande floodplain from Velarde to Elephant Butte Reservoir, New Mexico Surface cover maps of the Rio Grande floodplain from Velarde to Elephant Butte Reservoir, New Mexico
No abstract available.
Authors
J. E. Roelle, W. W. Hagenbuck
Monitoring long-term watershed/ecosystem change for preserved lands Monitoring long-term watershed/ecosystem change for preserved lands
No abstract available.
Authors
R. Herrmann
Long-term ecosystem and watershed change: U.S./Russia bilateral research at the OKA Reserve, Russia Long-term ecosystem and watershed change: U.S./Russia bilateral research at the OKA Reserve, Russia
No abstract available.
Authors
R. Herrmann, Y. Puzachenko, L. R. Boring, A. Sankovsky, R. Pierce
Flushing flows for the water manager Flushing flows for the water manager
No abstract available.
Authors
Robert T. Milhous
Conservation of desert tortoises: genetics and protection of isolated populations Conservation of desert tortoises: genetics and protection of isolated populations
No abstract available.
Authors
R. Bruce Bury, T.C. Esque, P. S. Corn
Petrology of Quaternary basalt from the Bering Sea continental margin Petrology of Quaternary basalt from the Bering Sea continental margin
No abstract available.
Authors
A. S. Davis, F. L. Wong, M. S. Marlow