Filters: Tags: Polk County, Oregon (X)
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Land management practices often directly alter vegetation structure and composition, but the degree to which ecological processes such as herbivory interact with management to influence biodiversity is less well understood. We hypothesized that intensive forest management and large herbivores have compounding effects on early-seral plant communities and plantation establishment (i.e., tree survival and growth), and the degree of such effects is dependent on the intensity of management practices. We established 225 m2 wild ungulate (deer and elk) exclosures nested within a manipulated gradient of management intensity (no-spray Control, Light herbicide, Moderate herbicide and Intensive herbicide treatments), replicated...
Categories: Data;
Types: Citation;
Tags: Lincoln County, Oregon,
Oregon,
Oregon Coast Range,
Pacific Northwest,
Polk County, Oregon,
Album caption: Oregon, Polk Co. Erratic boulders (No. 48) in the NW. ¼ sec. 15, T. 7 S., R. 5 W. July 12, 1929. No index card.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Photographers,
Piper, A.M. Collection,
Polk County, Oregon,
photo print
Land management practices often directly alter vegetation structure and composition, but the degree to which ecological processes such as herbivory interact with management to influence biodiversity is less well understood. We hypothesized that intensive forest management and large herbivores have compounding effects on early-seral plant communities and plantation establishment (i.e., tree survival and growth), and the degree of such effects is dependent on the intensity of management practices. We established 225 m2 wild ungulate (deer and elk) exclosures nested within a manipulated gradient of management intensity (no-spray Control, Light herbicide, Moderate herbicide and Intensive herbicide treatments), replicated...
Categories: Data;
Types: Citation;
Tags: Ecology,
Lincoln County, Oregon,
Oregon,
Oregon Coast Range,
Pacific Northwest,
Album caption: Alluvium in gravel pit in the NW1/4 sec. 3, T. 9 S., R. 4 W. Cross-bedded sand enclosed in sand and gravel, both ill-sorted. Salem quadrangle, Polk County, Oregon. July 11, 1929.
Land management practices often directly alter vegetation structure and composition, but the degree to which ecological processes such as herbivory interact with management to influence biodiversity is less well understood. We hypothesized that intensive forest management and large herbivores have compounding effects on early-seral plant communities and plantation establishment (i.e., tree survival and growth), and the degree of such effects is dependent on the intensity of management practices. We established 225 m2 wild ungulate (deer and elk) exclosures nested within a manipulated gradient of management intensity (no-spray Control, Light herbicide, Moderate herbicide and Intensive herbicide treatments), replicated...
Categories: Data;
Types: Citation;
Tags: Lincoln County, Oregon,
Oregon,
Oregon Coast Range,
Pacific Northwest,
Polk County, Oregon,
Album caption: Topography of the Dallas terrace, view northwestward from point near the east 1/4 corner sec. 22, T. 7 S., R. 5 W. Polk County, Oregon. July 12, 1929.
Album caption: Oregon, Polk Co., Salem qd. Grandiorite erratics (No. 51). July 20, 1929. No index card.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Photographers,
Piper, A.M. Collection,
Polk County, Oregon,
photo print
Album caption: Oregon, Polk Co., Salem qd. Largest erratic of group No. 51. July 20, 1929.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Photographers,
Piper, A.M. Collection,
Polk County, Oregon,
photo print
Album caption: Topographic engineer's camp in Willamette Valley, Oregon, 1915, Salem quadrangle, C. Hartmann's camp. Index card: Geological Survey camp in Willamette Valley. Polk County, Oregon. 1915.
Album caption: Topography of the Dallas terrace; view northwestward from point near the east 1/4 corner sec. 22, T. 7 S., R. 5 W. Polk County, Oregon. July 12, 1929.
Album caption: Spheroidal boulders in weathering in massive Eocene (?) sandstone, in Pacific Highway cut through Helmich Hill, in the SW1/4 sec. 18, T. 9 S., R. 4 W. Salem quadrangle, Polk County, Oregon. July 11, 1929.
Album caption: Rock terraces near head of Salt Creek Valley, looking westward from the SW1/4 sec. 32, T. 6 S., R. 5 W. Polk County, Oregon. July 24, 1929.
Album caption: Topography of Dallas terrace, view southeastward from a point near center sec. 15, T. 7 S., R. 5 W. Polk County, Oregon. July 12, 1929.
Album caption: Alluvium in gravel pit in the NW1/4 sec. 3, T. 9 S., R. 4 W. Sand-free gravel overlying ill-sorted sand and gravel. Salem quadrangle, Polk County, Oregon. July 11, 1929.
Album caption: Thin-bedded sandy fossiliferous shale overlain and underlain by massive sandstone in Pacific Highway cut through Helmick Hill, in the SW1/4 sec. 18, T. 9 S., R. 4 W. Salem quadrangle, Polk County, Oregon. July 11, 1929.
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