Search Constraints
Filtering by:
Creator
Knight, Alan L.
Remove constraint Creator: Knight, Alan L.
Date
Unknown
Remove constraint Date: Unknown
« Previous |
1 - 10 of 19
|
Next »
Number of results to display per page
Search Results
-
- Creator:
- Stoddard, John L., Van Sickle, John, Herlihy, Alan T., Brahney, Janice, Paulsen, Steven, Peck, David V., Mitchell, Richard, and Pollard, Amina I.
- Abstract:
- We describe continental-scale increases in lake and stream total phosphorus (TP) concentrations, identified through periodic probability surveys of thousands of water bodies in the conterminous U.S. The increases, observed over the period 2000–2014 were most notable in sites in relatively undisturbed catchments and where TP was initially low (e.g., less...
- Full Text:
- systems disappearing in the U.S.? Authors: John L. Stoddard, John Van Sickle, Alan T. Herlihy
-
- Creator:
- Stoddard, John L., Van Sickle, John, Herlihy, Alan T., Brahney, Janice, Paulsen, Steven, Peck, David V., Mitchell, Richard, and Pollard, Amina I.
- Abstract:
- We describe continental-scale increases in lake and stream total phosphorus (TP) concentrations, identified through periodic probability surveys of thousands of water bodies in the conterminous U.S. The increases, observed over the period 2000–2014 were most notable in sites in relatively undisturbed catchments and where TP was initially low (e.g., less...
- Full Text:
- Phosphorus: Are Oligotrophic Systems Disappearing in the United States? John L. Stoddard,*,† John Van Sickle
-
- Creator:
- Paulik, L. Blair, Smith, Brian W., Bergmann, Alan J., Sower, Greg J., Forsberg, Norman D., Teeguarden, Justin G., and Anderson, Kim A.
- Abstract:
- Contamination of resident aquatic organisms is a major concern for environmental risk assessors. However, collecting organisms to estimate risk is often prohibitively time and resource-intensive. Passive sampling accurately estimates resident organism contamination, and it saves time and resources. This study used low density polyethylene (LDPE) passive water samplers to predict...
- Full Text:
- predict PAH levels in resident crayfish Authors: L. Blair Paulik1, Brian W. Smith1, Alan J. Bergmann1
-
- Creator:
- Paulik, L. Blair, Smith, Brian W., Bergmann, Alan J., Sower, Greg J., Forsberg, Norman D., Teeguarden, Justin G., and Anderson, Kim A.
- Abstract:
- Contamination of resident aquatic organisms is a major concern for environmental risk assessors. However, collecting organisms to estimate risk is often prohibitively time and resource-intensive. Passive sampling accurately estimates resident organism contamination, and it saves time and resources. This study used low density polyethylene (LDPE) passive water samplers to predict...
- Full Text:
- accurately predict PAH levels in resident crayfish L. Blair Paulik a, Brian W. Smith a, Alan J. Bergmann a
-
- Creator:
- Oregon State University. Extension Service, Angima, S. D., Terry, Thomas A., Dobkowski, Alexander, Campbell, Steve, Grizzel, Jeffrey D., Harrison, Robert B., Heninger, Ronald L., Maguire, Douglas A. (Douglas Alan), Miller, Richard E., Page-Dumroese, Deborah S., Scott, William, and Zabowski, D.
- Abstract:
- This publication is a reference guide for forest soils productivity and management. Main topics include (1) understanding and managing risk, (2) soil characteristics that affect productivity, (3) soil survey information for forestland managers/management of soil erosion, (4) managing mass wasting risk, (5) managing soil disturbance, and (6) maintaining adequate nutrient...
-
- Creator:
- Oregon State University. Extension Service, Angima, S. D., Terry, Thomas A., Dobkowski, Alexander, Campbell, Steve, Grizzel, Jeffrey D., Harrison, Robert B., Heninger, Ronald L., Maguire, Douglas A. (Douglas Alan), Miller, Richard E., Page-Dumroese, Deborah S., Scott, William, and Zabowski, D.
- Abstract:
- This publication is a reference guide for forest soils productivity and management. Main topics include (1) understanding and managing risk, (2) soil characteristics that affect productivity, (3) soil survey information for forestland managers/management of soil erosion, (4) managing mass wasting risk, (5) managing soil disturbance, and (6) maintaining adequate nutrient...
- Full Text:
- ; SiC, silty clay; SiCL, silty clay loam; CL, clay loam; SC, sandy clay; SiL, silt loam; L, loam; SCL
-
- Creator:
- Oregon State University. Extension Service, Angima, S. D., Terry, Thomas A., Dobkowski, Alexander, Campbell, Steve, Grizzel, Jeffrey D., Harrison, Robert B., Heninger, Ronald L., Maguire, Douglas A. (Douglas Alan), Miller, Richard E., Page-Dumroese, Deborah S., Scott, William, and Zabowski, D.
- Abstract:
- This publication is a reference guide for forest soils productivity and management. Main topics include (1) understanding and managing risk, (2) soil characteristics that affect productivity, (3) soil survey information for forestland managers/management of soil erosion, (4) managing mass wasting risk, (5) managing soil disturbance, and (6) maintaining adequate nutrient...
-
- Creator:
- Oregon State University. Extension Service, Angima, S. D., Terry, Thomas A., Dobkowski, Alexander, Campbell, Steve, Grizzel, Jeffrey D., Harrison, Robert B., Heninger, Ronald L., Maguire, Douglas A. (Douglas Alan), Miller, Richard E., Page-Dumroese, Deborah S., Scott, William, and Zabowski, D.
- Abstract:
- This publication is a reference guide for forest soils productivity and management. Main topics include (1) understanding and managing risk, (2) soil characteristics that affect productivity, (3) soil survey information for forestland managers/management of soil erosion, (4) managing mass wasting risk, (5) managing soil disturbance, and (6) maintaining adequate nutrient...
-
- Creator:
- Oregon State University. Extension Service, Angima, S. D., Terry, Thomas A., Dobkowski, Alexander, Campbell, Steve, Grizzel, Jeffrey D., Harrison, Robert B., Heninger, Ronald L., Maguire, Douglas A. (Douglas Alan), Miller, Richard E., Page-Dumroese, Deborah S., Scott, William, and Zabowski, D.
- Abstract:
- This publication is a reference guide for forest soils productivity and management. Main topics include (1) understanding and managing risk, (2) soil characteristics that affect productivity, (3) soil survey information for forestland managers/management of soil erosion, (4) managing mass wasting risk, (5) managing soil disturbance, and (6) maintaining adequate nutrient...
- Full Text:
- disturBance Ronald L. Heninger, William Scott, Alex Dobkowski, and Thomas A. Terry Guiding principles and
-
- Creator:
- Oregon State University. Extension Service, Angima, S. D., Terry, Thomas A., Dobkowski, Alexander, Campbell, Steve, Grizzel, Jeffrey D., Harrison, Robert B., Heninger, Ronald L., Maguire, Douglas A. (Douglas Alan), Miller, Richard E., Page-Dumroese, Deborah S., Scott, William, and Zabowski, D.
- Abstract:
- This publication is a reference guide for forest soils productivity and management. Main topics include (1) understanding and managing risk, (2) soil characteristics that affect productivity, (3) soil survey information for forestland managers/management of soil erosion, (4) managing mass wasting risk, (5) managing soil disturbance, and (6) maintaining adequate nutrient...
- Full Text:
- in upper left corner of each photo indicates foliage retention in years. Photos by Alan Kanaskie