Plant nurseries comprise the largest agricultural sector in Oregon at nearly $1 billion per year. Even at this scale, individual nurseries and greenhouses do not have clear water quality standards set by the EPA. Watershed-level total maximum daily loads (TMDLs) have been set for excess nutrients and herbicides due to...
In Earth science, we must often collect data from sensors installed in remote locations. Retrieving these data and storing them can be challenging. Present options include proprietary commercial dataloggers, communication devices, and protocols with rigid software and data structures that may require ongoing expenses. While there are open-source solutions that...
Two experiments were conducted on the invasive plant species Potentilla recta in northeastern Oregon to investigate both biological and ecological characteristics of the species. Growth analysis was conducted on the plant at three sites over a period of two years (2002 and 2003). Relative growth rate (RGR) was calculated for...
Germination strategies and early seedling development
of selected Medicago and Hedysarum species were evaluated to
identify plants with high potential for range rehabilitation
in central Tunisia. Temperature (5°C to 25°C) and water
stress (0 MPa to -0.8 MPa) affected the germination
percentage of all Medicago and Hedysarum species. Water
stress...
Research in geoscience often requires transmission of significant amounts of data from remote locations. The emergence of microcontrollers and open-source sensors are allowing connectivity to affordable, distributed in-situ monitoring. This report describes the OPEnS Hub, a modular data hub orders of magnitude cheaper than commercial dataloggers when scaled to multiple...
As time continues, the issue of full European Union membership for Norway becomes a more pertinent issue. The EU has long awaited the membership of Norway, but unfortunately the Nordic country has decided to remain independent. Norway’s historical past has led many Norwegians to believe their country is not ready...
Full Text:
Norway, 1995.
Ørvik, Nils, Heradstveit, Daniel, and Larson, David L. Norway’s No to Europe
In spite of the lack of accurate information about the
treatability of western wood species with waterborne wood
preservatives, consumption of these products continues to
increase. Western wood species, notably Douglas-fir, are
notoriously difficult to treat with waterborne systems, yet
there is relatively little data on the effects of wood...
This publication highlights hand-scalping, mulch mats, and herbicides as weed management methods to improve conifer seedling survival and growth. The focus here is on grass dominated environments. All these methods are in use on small woodland properties. Other weed control methods, including grazing and manual brush removal, are discussed in...
The Columbia River Gillnetter is the pilot of the Lower Columbia River commercial fishing industry, keeping fishermen and the public in touch with today's important issues.