Search Results - "Ek, Alan R"

Stand Age Class to Size Class Crosswalk by Forest Type Group in Minnesota, USA by John M. Zobel, Alan R. Ek, Tyler S. Gifford

“…Many forestry models require the input of stand size class information, a variable with multiple definitions across forest inventories. This work describes a…”
Get full text

Estimation and mapping of forest stand density, volume, and cover type using the k-nearest neighbors method by Franco-Lopez, Hector, Ek, Alan R., Bauer, Marvin E.

“…Mapping forest variables and associated characteristics is fundamental for forest planning and management. Considerable effort has been made in Northern Europe…”
Get full text

Delineation of forest/nonforest land use classes using nearest neighbor methods by Haapanen, Reija, Ek, Alan R, Bauer, Marvin E, Finley, Andrew O

“…The k-Nearest Neighbor (kNN) method of forest attribute estimation and mapping has become an integral part of national forest inventory methods in Finland in…”
Get full text

Assessing the Impact of 41 Years of Forest Management on Native Wildlife Habitat in Minnesota, USA by Zobel, John M, Ek, Alan R, Edgar, Christopher B

“…Abstract Over the last four decades, forest management goals have transitioned to multiuse objectives, begging the question of their impact on wildlife…”
Get full text

Monitoring disturbance intervals in forests: a case study of increasing forest disturbance in Minnesota by Wilson, David C., Morin, Randall S., Frelich, Lee E., Ek, Alan R.

“…Key Message We develop analytical methods and explore trends in disturbance interval via systematic forest inventory observations at a bioregional scale…”
Get full text

A process-based model of forest ecosystems driven by meteorology by Schwalm, Christopher R., Ek, Alan R.

“…Although anthropogenic climate change is generally acknowledged as a reality, tree level models that respond to the boundary conditions expected to change as a…”
Get full text

Carbon emissions associated with the procurement and utilization of forest harvest residues for energy, northern Minnesota, USA by Domke, Grant M., Becker, Dennis R., D’Amato, Anthony W., Ek, Alan R., Woodall, Christopher W.

“…Interest in the use of forest-derived biomass for energy has prompted comparisons to fossil fuels and led to controversy over the atmospheric consequences of…”
Get full text

Quantifying the Opportunity Cost of Extended Rotation Forestry with Cohort Yield Metrics in Minnesota by Zobel, John M., Ek, Alan R., O'Hara, Timothy J.

“…Recent questions of the habitat quality and ecological benefits provided by older forests have led to the concept of extended rotation forestry. Consideration…”
Get full text

Process-based models for forest ecosystem management: current state of the art and challenges for practical implementation by Mäkelä, Annikki, Landsberg, Joe, Ek, Alan R., Burk, Thomas E., Ter-Mikaelian, Michael, Agren, Göran I., Oliver, Chadwick D., Puttonen, Pasi

“…Recent progress toward the application of process-based models in forestmanagement includes the development of evaluation and parameter estimation methods…”
Get full text

Comparison of Forest Inventory and Analysis surveys, basal area models, and fitting methods for the aspen forest type in Minnesota by Zobel, John M., Ek, Alan R., Burk, Thomas E.

“…► We compared FIA inventory periods for their utility in empirical model building. ► Each inventory year (or combination/subset) produced essentially the same…”
Get full text

Applying an Efficient k-Nearest Neighbor Search to Forest Attribute Imputation by Finley, A.O, McRoberts, R.E, Ek, A.R

“…This article explores the utility of an efficient nearest neighbor (NN) search algorithm for applications in multisource kNN forest attribute imputation. The…”
Get full text

Hybrid Aspen Response to Shearing in Minnesota: Implications for Biomass Production by Domke, Grant M., David, Andrew J., D'Amato, Anthony W., Ek, Alan R., Wycoff, Gary W.

“…There is great potential for the production of woody biomass feedstocks from hybrid aspen stands; however, little is known about the response of these systems…”
Get full text

Bayesian Multivariate Process Modeling for Prediction of Forest Attributes by Finley, Andrew O., Banerjee, Sudipto, Ek, Alan R., McRoberts, Ronald E.

“…This article investigates multivariate spatial process models suitable for predicting multiple forest attributes using a multisource forest inventory approach…”
Get full text

Imputing plant community classifications for forest inventory plots by Wilson, David C., Ek, Alan R.

“…•We classify native plant communities (NPCs) present on forest inventory plots.•Coincidence of NPC and forest inventory observations informs…”
Get full text

Imputing plant community classification from associated forest inventory and physiographic data in Minnesota, USA by Wilson, David C., Ek, Alan R.

“…[Display omitted] •A native plant community (NPC) classification model is developed.•Classifications are produced for 1.7 million hectares of forestland in…”
Get full text

Description and validation of a hybrid model of forest growth and stand dynamics for the Great Lakes region by Robinson, Andrew P., Ek, Alan R.

“…We describe and test Forest 5, an individual-tree growth and dynamics model for the Great Lakes region. Forest 5 includes reasonably detailed descriptions of…”
Get full text

Climate change and site: relevant mechanisms and modeling techniques by Schwalm, Christopher R., Ek, Alan R.

“…Forest growth modeling is moving away from description and toward explanation. The acceptance of global warming and effects related to climate change has…”
Get full text

Status and Trends of Silvicultural Practices in Minnesota by Puettmann, Klaus J., Ek, Alan R.

“…This article describes the kind and extent of silvicultural practices applied in Minnesota. We surveyed land managers with respect to silvicultural systems and…”
Get full text

Development and testing of regeneration imputation models for forests in Minnesota by Ek, Alan R., Robinson, Andrew P., Radtke, Philip J., Walters, David K.

“…Tabular imputation models were developed and tested to estimate postharvest forest stand characteristics in Minnesota. The models were based on a sorting of…”
Get full text

Description and Validation of a Hybrid Model of Forest Growth and Stand Dynamics for the Great Lakes Region by Robinson, Andrew P, Ek, Alan R

“…The most important features of the Forest 5 individual-tree growth and dynamics model developed for assessment of the Great Lakes region are examined. The…”
Get full text