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Filters Date Range Past year (7) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Citation (9) Contacts Wen J. Wang Hong S. He Jacob S. Fraser Frank R. Thompson Northeast CSC More... Categories Publication (9) Data (2) Tag Types Label (11) Landscapes (11) Science Themes (11) Theme (2) Tag Schemes https://www.sciencebase.gov/vocab/category/NCCWSC/Landscapes (11) https://www.sciencebase.gov/vocab/category/NCCWSC/Project/OrganizationName (11) https://www.sciencebase.gov/vocab/category/NCCWSC/ScienceThemes (11) ISO 19115 Topic Categories (2) View Results as: JSON ATOM CSV

The past and future of modeling forest dynamics: from growth and yield curves to forest landscape models Abstract (from https://link.springer.com/article/10.1007/s10980-017-0540-9): Context Quantitative models of forest dynamics have followed a progression toward methods with increased detail, complexity, and spatial extent. Objectives We highlight milestones in the development of forest dynamics models and identify future research and application opportunities. Methods We reviewed milestones in the evolution of forest dynamics models from the 1930s to the present with emphasis on forest growth and yield models and forest landscape models We combined past trends with emerging issues to identify future needs. Results Historically, capacity to model forest dynamics at tree, stand, and landscape scales was constrained... Categories: Publication; Types: Citation; Tags: Forests, Landscapes, Northeast CASC Landscape- and regional-scale shifts in forest composition under climate change in the Central Hardwood Region of the United States Abstract (from http://link.springer.com/article/10.1007%2Fs10980-015-0294-1): Context Tree species distribution and abundance are affected by forces operating at multiple scales. Niche and biophysical process models have been commonly used to predict climate change effects at regional scales, however, these models have limited capability to include site-scale population dynamics and landscape-scale disturbance and dispersal. We applied a landscape modeling approach that incorporated three levels of spatial hierarchy (pixel, landtype, and ecological subsection) to model regional-scale shifts in forest composition under climate change. Objective To determine (1) how importance value of individual species will... Categories: Publication; Types: Citation; Tags: Forests, Forests, Landscapes, Modeling, Northeast CASC Changes in Forested Landscapes of the Northeastern U.S. Under Alternative Climate Scenarios Forests in the Eastern United States are in the early- and mid-successional stages recovering from historical land use. Succession, harvest, and climate are potentially important factors affecting forest composition and structure in the region. The goal of this project was to predict the distribution and abundance of dominant tree species across portions of the Eastern U.S. under alternative climate scenarios from present to the end of the century. We used the forest landscape change LANDIS PRO and hybrid empirical-physiological ecosystem model LINKAGES to model changes in forest biomass and species abundances and distribution in the North Atlantic region of the U.S. while accounting for climate change, succession,... Categories: Data; Types: Citation; Tags: Forests, Landscapes, Northeast CASC, biota, environment Comparison of a species distribution model and a process model from a hierarchical perspective to quantify effects of projected climate change on tree species Abstract (from http://link.springer.com/article/10.1007%2Fs10980-015-0217-1): Context Tree species distribution and abundance are affected by forces operating across a hierarchy of ecological scales. Process and species distribution models have been developed emphasizing forces at different scales. Understanding model agreement across hierarchical scales provides perspective on prediction uncertainty and ultimately enables policy makers and managers to make better decisions. Objective Our objective was to test the hypothesis that agreement between process and species distribution models varies by hierarchical level. Due to the top-down approach of species distribution models and the bottom-up approach of process... Categories: Publication; Types: Citation; Tags: Forests, Forests, Landscapes, Northeast CASC, climate models, All tags... trees, Fewer tags Changes in forest biomass and tree species distribution under climate change in the northeastern United States Abstract (from https://link.springer.com/article/10.1007/s10980-016-0429-z): Context Forests in the northeastern United States are currently in early- and mid-successional stages recovering from historical land use. Climate change will affect forest distribution and structure and have important implications for biodiversity, carbon dynamics, and human well-being. Objective We addressed how aboveground biomass (AGB) and tree species distribution changed under multiple climate change scenarios (PCM B1, CGCM A2, and GFDL A1FI) in northeastern forests. Methods We used the LANDIS PRO forest landscape model to simulate forest succession and tree harvest under current climate and three climate change scenarios from... Categories: Publication; Types: Citation; Tags: Forests, Landscapes, Northeast CASC Revision and application of the LINKAGES model to simulate forest growth in central hardwood landscapes in response to climate change Abstract (from https://link.springer.com/article/10.1007/s10980-016-0473-8): Context Global climate change impacts forest growth and methods of modeling those impacts at the landscape scale are needed to forecast future forest species composition change and abundance. Changes in forest landscapes will affect ecosystem processes and services such as succession and disturbance, wildlife habitat, and production of forest products at regional, landscape and global scales. Objectives LINKAGES 2.2 was revised to create LINKAGES 3.0 and used it to evaluate tree species growth potential and total biomass production under alternative climate scenarios. This information is needed to understand species potential under... Categories: Publication; Types: Citation; Tags: Forests, Landscapes, Northeast CASC Changes in Forested Landscapes of the Northeastern U.S. Under Alternative Climate Scenarios Forests in the Eastern United States are in the early- and mid-successional stages recovering from historical land use. Succession, harvest, and climate are potentially important factors affecting forest composition and structure in the region. The goal of this project was to predict the distribution and abundance of dominant tree species across portions of the Eastern U.S. under alternative climate scenarios from present to the end of the century. We used the forest landscape change LANDIS PRO and hybrid empirical-physiological ecosystem model LINKAGES to model changes in forest biomass and species abundances and distribution in the North Atlantic region of the U.S. while accounting for climate change, succession,... Categories: Data; Types: Citation; Tags: Forests, Landscapes, Northeast CASC, biota, environment Climate Change and Tree Harvest Interact to Affect Future Tree Species Distribution Changes Abstract (from British Ecological Society): Tree harvest and climate change can interact to have synergistic effects on tree species distribution changes. However, few studies have investigated the interactive effects of tree harvest and climate change on tree species distributions. We assessed the interactive effects of tree harvest and climate change on the distribution of 29 dominant tree species at 270 m resolution in the southern United States, while accounting for species demography, competition, urban growth and natural fire. We simulated tree species distribution changes to year 2100 using a coupled forest dynamic model (LANDIS PRO), ecosystem process model (LINKAGES) and urban growth model (SLEUTH). The... Categories: Publication; Types: Citation; Tags: Forests, Landscapes, Northeast CASC Population dynamics has greater effects than climate change on tree species distribution in a temperate forest region Abstract (from Wiley Online Library): Aim Population dynamics and disturbances have often been simplified or ignored when predicting regional‐scale tree species distributions in response to climate change in current climate‐distribution models (e.g., niche and biophysical process models). We determined the relative importance of population dynamics, tree harvest, climate change, and their interaction in affecting tree species distribution changes. Location Central Hardwood Forest Region of the United States. Major taxa studied Tree species. Methods We used a forest dynamic model, LANDIS PRO that accounted for population dynamics, tree harvest, and climate change to predict tree species’ distributions at 270 m resolution... Categories: Publication; Types: Citation; Tags: Forests, Landscapes, Northeast CASC Multi-model comparison on the effects of climate change on tree species in the eastern U.S.: results from an enhanced niche model and process-based ecosystem and landscape models Abstract (from https://link.springer.com/article/10.1007/s10980-016-0404-8): Objectives We compared predictions for 30 species from TreeAtlas, Linkages, and LANDIS PRO, using two climate change scenarios on four regions, to derive a more robust assessment of species change in response to climate change. Methods We calculated the ratio of future importance or biomass to current for each species, then compared agreement among models by species, region, and climate scenario using change classes, an ordinal agreement score, spearman rank correlations, and model averaged change ratios. Results Comparisons indicated high agreement for many species, especially northern species modeled to lose habitat. TreeAtlas and... Categories: Publication; Types: Citation; Tags: Forests, Landscapes, Northeast CASC Importance of succession, harvest, and climate change in determining future composition in U.S. Central Hardwood Forests Abstract (from http://onlinelibrary.wiley.com/doi/10.1890/ES15-00238.1/abstract): Most temperate forests in U.S. are recovering from heavy exploitation and are in intermediate successional stages where partial tree harvest is the primary disturbance. Changes in regional forest composition in response to climate change are often predicted for plant functional types using biophysical process models. These models usually simplify the simulation of succession and harvest and may not consider important species-specific demographic processes driving forests changes. We determined the relative importance of succession, harvest, and climate change to forest composition changes in a 125-million ha area of the Central Hardwood... Categories: Publication; Types: Citation; Tags: Forests, Forests, Hardwoods, Landscapes, Northeast CASC