نتایج جستجو برای: forest service

تعداد نتایج: 431278  

2012
Gang Chen Michael A. Wulder Joanne C. White Thomas Hilker Nicholas C. Coops

a Canadian Forest Service (Pacific Forestry Centre), Natural Resources Canada, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5 b Biospheric Sciences Branch, NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA c Integrated Remote Sensing Studio, Department of Forest Resources Management, Faculty of Forestry, University of British Columbia, 2424 Main...

2012
Thomas A. Spies David B. Lindenmayer Malcolm Gill Scott L. Stephens James K. Agee

US Department of Agriculture Forest Service, Pacific Northwest Research Station, 3200 Jefferson Way, Corvallis, OR 97331, USA b Fenner School of Environment and Society, The Australian National University, Canberra, Australia Department of Environmental Science, Policy and Management, University of California, Berkeley, CA 94720-3114, USA d School of Forest Resources, University of Washington, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی صنعتی کرمان - دانشکده برق و کامپیوتر 1390

عملکردهای زیستی پروتئین ها به واکنش های شیمیایی آنها با محیط پیرامون و سایر پروتئین ها بستگی دارد. به عبارت دیگر، ساختار سه بعدی و نحوه تاخوردن اجزای پروتئین ها در فضا، چگونگی این تعاملات را تعیین می کند. تشخیص صحیح الگوی تاخوردگی پروتئین با استفاده از اطلاعات استخراج شده از توالی آن، یکی از مسائل پیچیده و بحث برانگیز در زمینه بیوانفورماتیک می باشد. در این پایان نامه، سه روش نوین مبتنی بر الگور...

2011
Yang Yang Theodore A. Endreny David J. Nowak

This article presents snow hydrology updates made to iTree-Hydro, previously called the Urban Forest Effects—Hydrology model. iTree-Hydro Version 1 was a warm climate model developed by the USDA Forest Service to provide a process-based planning tool with robust water quantity and quality predictions given data limitations common to most urban areas. Cold climate hydrology routines presented in...

2000
WILLIAM B. KROHN WILLIAM J. ZIELINSKI RANDALL B. BOONE

A recent publication hypothesized that deep snowfall can limit fisher (Martes pennanti) populations, and high fisher populations limit marten populations (M. americana). These hypotheses were evaluated by comparing the historic (1919-1924) and current (1989-1994) distributions of both Martes species in California to current snowfall distributions and forest types presumed to be habitats for eac...

1986
Malcolm North

1 Research ecologist, U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1731 Research Park Dr., Davis, CA 95618. 2 Information Center for the Environment, Department of Environmental Science and Policy, One Shields Ave., University of California, Davis, Davis, CA 95616. 3 National coordinator for experimental forests and ranges, U.S. Department of Agriculture, ...

2005
S. T. A. Pickett M. L. Cadenasso J. M. Grove C. H. Nilon R. V. Pouyat W. C. Zipperer R. Costanza

S. T. A. Pickett,1 M. L. Cadenasso,1 J. M. Grove,2 C. H. Nilon,3 R. V. Pouyat,4 W. C. Zipperer,4 and R. Costanza5 1Institute of Ecosystem Studies, Millbrook, New York; e-mail: [email protected], [email protected] 2USDA Forest Service, Northeastern Research Station, Burlington, Vermont; e-mail: [email protected] 3Fisheries and Wildlife, University of Missouri, Columbia, Missouri; e-m...

2000
STEVEN R. BEISSINGER J. MICHAEL REED JOSEPH M. WUNDERLE SCOTT K. ROBINSON DEBORAH M. FINCH

STEVEN R. BEISSINGER,1,6 J. MICHAEL REED,2 JOSEPH M. WUNDERLE, JR.,3 SCOTT K. ROBINSON,4 AND DEBORAH M. FINCH5 1Department of Environmental Science, Policy and Management, 151 Hilgard Hall, University of California, Berkeley, California 94720, USA; 2Department of Biology, Tufts University, Medford, Massachusetts 02155, USA; 3International Institute of Tropical Forestry, USDA Forest Service, Box...

2009
Jungho Im John R. Jensen Mark Coleman Eric Nelson

Department of Environmental Resources and Forest Engineering, State University of New York, College of Environmental Science and Forestry, Syracuse, New York, USA; Department of Geography, University of South Carolina, Columbia, South Carolina, USA; USDA Forest Service, Southern Research Station, Aiken, South Carolina, USA; Savannah River National Laboratory, Savannah River Site, US Department ...

2007
Michael K. Schwartz Kristine L. Pilgrim Kevin S. McKelvey Leonard F. Ruggiero

DNA Markers for Identifying Individual Snowshoe Hares Using Fieldcollected Pellets Michael K. Schwartz1, Kristine L. Pilgrim, Kevin S. McKelvey, USDA Forest Service, Rocky Mountain Research Station, 800 E. Beckwith, Missoula, Montana 59801 PiiarT. Rivera, Wallowa-Whitman National Forest, P.O. Box 907, 1550 Dewey Avenue, Baker City, Oregon 97814

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