We have developed a framework for Web-based GIS/database applications which allow users to insert, update, delete, and query data with a map interface displayed by Web browsers. The framework was designed so that a Web-based GIS application that uses ArcIMS as a map server can be easily created, customized, and...
As part of legislation enacted into law in 2001 related
to conservation incentives for private landowners (HB
3564), the Oregon Legislature directed the Oregon
Department of Agriculture and the Oregon Department of
Forestry to review state statutes, rules, policies and programs
that affect landowner decisions to implement conservation
strategies. The...
An emergency management system integrating remote sensing and geographic
information systems applied to emergency preparation, response, and recovery could
have reduced casualties and damage after the August 17, 1999 Kocaeli, Turkey
earthquake. Model system components include a horizontally and vertically distributed
knowledge base, LIDAR 3D urban modeling, automatic feature extraction,...
Strip tillage is a form of conservation tillage that involves tilling
narrow strips for crop establishment while leaving areas between the strips with undisturbed crop residue. Strip tillage can reduce soil erosion and soil compaction, as well as machinery, fuel, and labor costs. Combined with winter cover crops, strip tillage...
Four species of Centaurea are commonly found in central and
eastern Oregon, including spotted knapweed (Centaurea
maculosa), diffuse knapweed (Centaurea diffusa), Russian
knapweed (Centaurea repens), and yellow starthistle
(Centaurea solstitialis). These four species are a serious problem
throughout Oregon and the Pacific Northwest. Stands of knapweed can choke out natural...
Bird predation of juvenile salmonids and/or bird predation control are reviewed for 14 of the 18 mainstem dams on the Columbia and Snake Rivers, but there was little information for some of these dams. California gulls, ring-billed gulls, Caspian terns, double-crested cormorants, American white pelicans, and several other bird species...
The proposed action is to thin understory trees from around ponderosa pine, sugar pine, white pine, and
Douglas fir in the outer portion of Riparian Reserves in the Jenny Creek watershed. The overall objective
is to maintain and restore the diversity of forest stands near streams in a way that...
Our study area includes the three McKenzie populations, and a reintroduced population in the Middle Fork Willamette and tributaries above Hills Creek Reservoir. We monitored bull trout populations in the McKenzie and Middle Fork Willamette basins using a combination of sampling techniques that include spawning surveys, juvenile trapping, electronic fish...
The objective of this study was to evaluate the effect of cow age on botanical composition of diets in mountain riparian areas. Treatments consisted of 30 first calf heifers, and 30 mature cows randomly assigned to four pastures (2 pastures/treatment, average 21.5 ha) in a two-year study with a cross...