Martin Ritchie People Profile - Research USDA Forest Service

Martin Ritchie

Research Forester
3644 Avtech Parkway
Redding, CA 96002-9241
530-226-2551
martin.ritchie@usda.gov

Research
Education & Experience
Organization & Awards
Publications & Products

current research

Blacks Mountain Interdisciplinary Research Project
CONIFERS; Young Stand Simulator for the Klamath Province
Storrie Fire Restoration
Effects of salvage harvesting
OP-Yield Version 1.00 user's guide and Op-Yield Microsoft Excel™ spreadsheet v1.00.4 (5.8 MB)
Standview: an R-package for rendering stand density management diagrams
The standview package is an R-package for rendering a high-resolution-graphic stand density management diagram (DMD). A DMD is a visual aid used by foresters to evaluate stands based on stem density (number of trees per unit area) and either a mean tree size such as quadratic mean diameter, or basal area per unit area. This package was developed to provide flexible development of DMDs for forestry applications. It requires the user to specify the published equations, or to generate their own based on user-supplied metrics.

research interest

Growth and yield of mixed-conifer forests, with emphasis on dynamics of young plantations.
Interdisciplinary research to quantify the effects of resource management activities (timber harvest, cattle grazing, and prescribed fire) on an array of forest components such as wildlife, sustainable productivity, and biodiversity in interior pine forests.
Methods of accelerating development of late successional forest vegetation.
LiDAR applications in forestry.

Education

Oregon State University Forest Modeling Ph.D. 1992
Oregon State University Statistics M.S. 1990
Oregon State University Forest Management M.S. 1985
Humboldt State University Forest Management B.S. 1981

Professional Organizations

American Statistical Association Member ( - )
Society of American Foresters (SAF) Member ( - )

Featured Publications & Products

Ritchie, Martin W.; Zhang, Jianwei 2018 OP-Yield Version 1.00 user's guide

Publications

Nepal, Sushil ; Eskelson, Bianca N.I.; Ritchie, Martin W. 2020 Difference in regeneration conditions in Pinus ponderosa dominated forests in northern California, USA, over an 83 year period
Ritchie, Martin W. 2020 Effects of thinning and prescribed fire in the Goosenest Adaptive Management Area in northeastern California
Ritchie, Martin W. 2020 Relating stocking and density for natural regeneration of conifers in northern California
Wing, Brian ; Boston, Kevin ; Ritchie, Martin W. 2019 A technique for implementing group selection treatments with multiple objectives using an airborne lidar-derived stem map in a heuristic environment
Ritchie, Martin ; Zhang, Jianwei ; Hammett, Ethan 2019 Aboveground biomass response to release treatments in a young ponderosa pine plantation
Mauro, Francisco ; Ritchie, Martin ; Wing, Brian ; Frank, Bryce ; Monleon, Vicente ; Temesgen, Hailemariam ; Hudak, Andrew 2019 Estimation of changes of forest structural attributes at three different spatial aggregation levels in Northern California using multitemporal LiDAR
Zhang, Jianwei ; Finley, Kaelyn ; Johnson, Nels ; Ritchie, Martin W. 2019 Lowering stand density enhances resiliency of ponderosa pine forests to disturbances and climate change
Huff, Steve ; Poudel, Krishna P.; Ritchie, Martin ; Temesgen, H. 2018 Quantifying aboveground biomass for common shrubs in northeastern California using nonlinear mixed effect models
Huff, Steve; Ritchie, Martin; Temesgen, H. 2017 Allometric equations for estimating aboveground biomass for common shrubs in northeastern California
Hammett, Ethan J.; Ritchie, Martin W.; Berrill, John-Pascal 2017 Resilience of California black oak experiencing frequent fire: regeneration following two large wildfires 12 years apart
Ritchie, Martin W. 2016 Multi-scale reference conditions in an interior pine-dominated landscape in northeastern California
Knapp, Eric E.; Ritchie, Martin W. 2016 Response of understory vegetation to salvage logging following a high-severity wildfire
Crotteau, Justin S.; Ritchie, Martin W.; Varner, J. Morgan; Berrill, John-Pascal 2015 Quercus kelloggii (Newb.) sprout response to fire severity in northern California
Wing, Brian M.; Ritchie, Martin W.; Boston, Kevin; Cohen, Warren B.; Olsen, Michael J. 2015 Individual snag detection using neighborhood attribute filtered airborne lidar data
Crotteau, Justin S.; Ritchie, Martin W.; Varner, J. Morgan 2014 A Mixed-Effects Heterogeneous Negative Binomial Model for Postfire Conifer Regeneration in Northeastern California, USA
Ritchie, Martin W.; Knapp, Eric E. 2014 Establishment of a long-term fire salvage study in an interior ponderosa pine forest
Ritchie, Martin; Skinner, Carl 2014 Interdisciplinary research on the Blacks Mountain Experimental Forest.
Crotteau, Justin S.; Ritchie, Martin W. 2014 Long-term stand growth of interior ponderosa pine stands in response to structural modifications and burning treatments in northeastern California
Ritchie, Martin W.; Zhang, Jianwei; Hamilton, Todd A. 2013 Aboveground tree biomass for Pinus ponderosa in northeastern California
Zhang, Jianwei; Oliver, William W.; Ritchie, Martin W.; Neal, Donald L. 2013 Overstory and understory dynamics in a ponderosa pine plantation vary with stand density in the Sierra Nevada: 40-year results
Ritchie, Martin W.; Knapp, Eric E.; Skinner, Carl N. 2013 Snag longevity and surface fuel accumulation following post-fire logging in a ponderosa pine dominated forest
Zhang, Jianwei; Ritchie, Martin W.; Maguire, Douglas A.; Oliver, William W. 2013 Thinning ponderosa pine (Pinus ponderosa) stands reduces mortality while maintaining stand productivity
Ritchie, Martin; Zhang, Jianwei; Hamilton, Todd 2012 Effects of stand density on top height estimation for ponderosa pine
Crotteau, Justin; Varner, Morgan; Ritchie, Martin 2012 Post-fire regeneration across a fire severity gradient in the southern Cascades
Wing, Brian M.; Ritchie, Martin W.; Boston, Kevin; Cohen, Warren B.; Gitelman, Alix; Olsen, Michael J. 2012 Prediction of understory vegetation cover with airborne lidar in an interior ponderosa pine forest
Vaughn, Nicholas R.; Turnblom, Eric C.; Ritchie, Martin W. 2010 Bootstrap evaluation of a young Douglas-fir height growth model for the Pacific Northwest
Wells, Gail; Hayes, Deborah; Krause, Katrina; Bartuska, Ann; LeVan-Green, Susan; Anderson, Jim; Gough, Tivoli; Adams, Mary; Schuler, Thomas; Kolka, Randy; Sebestyen, Steve; Kenefic, Laura; Brissette, John; Stout, Susan; Kanoti, Keith; Swanson, Fred; Greene, Sarah; Herring, Margaret; Ritchie, Martin; Skinner, Carl; Lisle, Tom; Keppeler, Elizabeth; Reid, Leslie; Wohlegemuth, Peter; Kitchen, Stanley; McCaughey, Ward; Guldin, Jim; Bragg, Don; Shelton, Michael; Loftis, David; Greenberg, Cathryn; Murphy, Julia 2009 Experimental forests and ranges : 100 years of research success stories
Rabin, Lawrence A.; Oliver, William W.; Powers, Robert F.; Ritchie, Martin W.; Busse, Matt D.; Knapp, Eric E. 2009 Historical growth plots in the Pacific Southwest
McDonald, Philip M.; Fiddler, Gary; Ritchie, Martin; Anderson, Paula 2009 Naturally seeded versus planted ponderosa pine seedlings in group-selection openings
Zhang, Jianwei; Ritchie, Martin W. 2008 Restoring eastside ponderosa pine ecosystems at the Blacks Mountain Experimental Forest: a case study
Ritchie, Martin W.; Wing, Brian M.; Hamilton, Todd A. 2008 Stability of the large tree component in treated and untreated late-seral interior ponderosa pine stands
Zhang, Jianwei; Ritchie, Martin W.; Oliver, William W. 2008 Vegetation response to stand structure and prescribed fire in an interior ponderosa pine ecosystem
Zhang, Jianwei; Oliver, William W.; Ritchie, Martin W. 2007 Effect of stand densities on stand dynamics in white fir (Abies concolor) forests in northeast California, USA
Ritchie, Martin W.; Skinner, Carl N.; Hamilton, Todd A. 2007 Probability of wildfire-induced tree mortality in an interior pine forest of northern California: effects of thinning and prescribed fire
Maleki, Sussanne; Featured: Skinner, Carl; Ritchie, Martin 2007 Tested by fire: the cone fire and the lessons of an accidental experiment
Ritchie, Martin W.; Harcksen, Kathleen A. 2005 Accelerating development of late-successional features in second-growth pine stands of the Goosenest Adaptive Management Area
Ritchie, Martin W. 2005 Ecological research at the Goosenest Adaptive Management Area in northeastern California
Vaughn, Nicholas; Ritchie, Martin W. 2005 Estimation of crown cover in interior ponderosa pine stands: Effects of thinning and prescribed fire
Ritchie, Martin W.; Maguire, Douglas A.; Youngblood, Andrew 2005 Proceedings of the Symposium on Ponderosa Pine: Issues, Trends, and Management, 2004 October 18-21, Klamath Falls, OR
Ritchie, Martin W. 1999 A compendium of forest growth and yield simulators for the Pacific coast states
Uzoh, Fabian C.C.; Ritchie, Martin W. 1996 Crown area equations for 13 species of trees and shrubs in northern California and southwestern Oregon
McDonald, Philip M.; Ritchie, Martin W.; Abbott, Celeste S. 1996 Ten-year diameter and basal area growth of trees surrounding small group selection openings
McDonald, Philip M.; Ritchie, Martin W. 1994 Epicormic branching of California black oak: effect of stand and tree characteristics
Ritchie, Martin W.; Powers, Robert F. 1993 User's guide for SYSTUM-1 (Version 2.0): A simulator of growth trends in young stands under management in California and Oregon

R&D Affiliations

Ecosystem Function and Health Program (PSW)