Beginning in the late 1960s and throughout the past decade, unusual, perhaps neoplastic, large cells with rather consistent characteristics were described in mussels, clams, and oysters from several bays in the United States and the United Kingdom. The large, characteristic cells are thought by many workers to be abnormal leukocytes...
Proceedings of the 54th Annual Western Orchard Pest and Disease Management Conference, held January 16-18, 1980 at the Imperial Hotel in Portland, Oregon.
When a shade ring is used to shield a pyranometer from direct solar radiation, a correction to the
measured diffuse radiation is necessary to account for diffuse radiation intercepted by the ring. A general
analysis is developed to relate shade-ring corrections to the radiance distribution of diffuse radiation. The
corrections...
Published January 1980. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Surface erosion can be initiated by forest practices such as
timber harvest, road construction, and site preparation. A variety
of management and control measures can help reduce
this erosion. Surface erosion is generated by soil and operational
conditions that are conducive to or cause disturbance
and compaction. By using good...