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Filtering by: Creator Brown, R. B. (Randall Barber)

Agricultural erosion and sediment in the western Willamette Valley as indicated by redistribution of Cesium-137

Creator:

Brown, R. B. (Randall Barber)

Abstract:

Modern agricultural erosion was studied using ¹³⁷Cs from fallout as an indicator of erosion/deposition. The study area was a 285 ha agricultural watershed in the hilly western margin of the Willamette Valley, a high winter rainfall zone in which fall-planted crops are commonly grown. Objectives of the study were (i)...

Resource Type:

Dissertation
Soils of the reference stands -- Oregon IBP

Creator:

Brown, R. B. (Randall Barber), Parsons, Roger Bruce, 1932-, U.S. International Biological Program. Coniferous Forest Biome, and University of Washington

Abstract:

Field reconnaissance, soil sampling, and laboratory analyses were conducted to characterize the soils of the 50 by 50 meter forest community reference stand plots in and near the H. J. Andrews Experimental Forest. Soil descriptions, chemical and physical properties, soil classification, and nutrient capital information for mineral soils are summarized....

Resource Type:

Technical Report
Soil variability, Oregon IBP: Annual report 1972

Creator:

Brown, R. B. (Randall Barber), Parsons, Roger Bruce, 1932-, U.S. International Biological Program. Coniferous Forest Biome, and University of Washington

Abstract:

Goals in 1972 included characterization of the soils of the Oregon IBP reference stands, development of information on the soils throughout the H. J. Andrews Experimental Forest, and evaluation of nutrient provision to the major kinds of soils. Field reconnaissance, soil morphology studies, and sampling were carried out. Lab analyses...

Resource Type:

Technical Report