Treesearch

Accurate modeling of wildland fuelbeds requires knowledge of not only where fuels are in three-dimensional (3D) space but also what they are. In this study, we introduce an object-based scanning protocol designed to generate detailed three-dimensional mesh models of individual fuel particles (e.g., seedlings, shrubs, litter, and cones) using an industrial-grade laser scanner. While traditional terrestrial laser scanning (TLS) or photogrammetric approaches tend to require objects to be segmented from broader-scope environment-level point clouds, our approach begins with the object itself.By...

The U.S. Department of Agriculture (USDA), Forest Service, Forest Inventory and Analysis (FIA) program provides this resource update yearly as an overview of forest resources in Iowa. These estimates are derived from field data collected across a systematic network of fixed-radius forest monitoring plots located on both public and private land. New updates are provided annually as a subset of plots within the State are remeasured. Each year, field crews visit and measure a subset of all FIA plots across the entire State (the size of the subset varies by State and year). Combining all the...

The U.S. Department of Agriculture (USDA), Forest Service, Forest Inventory and Analysis (FIA) program provides this resource update yearly as an overview of forest resources in Illinois. These estimates are derived from field data collected across a systematic network of fixed-radius forest monitoring plots located on both public and private land. New updates are provided annually as a subset of plots within the State are remeasured. Each year, field crews visit and measure a subset of all FIA plots across the entire State (the size of the subset varies by State and year). Combining all...

Carbon stocks and stock changes in harvested wood products (HWPs) are an important part of land sector greenhouse gas (GHG) estimation and reporting. HWPs broadly categorized as products in-use (e.g., solid wood and paper products) and in solid waste disposal sites (SWDS; e.g., landfills), store carbon transferred from harvested trees. In the United States (US), estimates of carbon in HWPs have historically been reported in the US GHG Inventory and included in submissions to the United Nations Framework Convention on Climate Change. These data have been obtained from national and internatio...

AimHydroelectricity is considered a renewable energy source with low greenhouse gas emissions. However, little attention has been given to the impact of the construction and maintenance of power line corridors on soil and vegetation. This study assessed the effect of power line corridors on terrestrial carbon pools in upland forests across a 750-km gradient from deciduous forests to open-canopy taiga in Quebec (Canada).MethodsQuantification of ecosystem carbon pools (live biomass, dead organic matter and soil) was carried out using transects of plots located in: i) the power line corridor,...

Natural gas development in forested landscapes can cause substantial forest disturbance, yet its impacts on forest carbon remain poorly quantified. In the Appalachian Basin of the United States, where natural gas production is expected to continue expanding in the coming decades, understanding these impacts is important for evaluating trade-offs between energy production and forest ecosystem services. Here, we combine nationwide forest inventory and remotely sensed data within a Bayesian spatiotemporal modeling framework to quantify forest disturbance, carbon loss, and opportunity cost...

Increases in the frequency and severity of forest disturbances over recent decades have raised concerns regarding the future health and functioning of forest ecosystems. Previous ground- and remote-sensing-based studies have quantified disturbance impacts and recovery, but we have limited understanding of the immediate impacts and short-term recovery of seedling density and live biomass across broad geographic regions. We quantified short-term impacts and recovery of seedling density and live biomass stocks following different disturbances (fire, harvest, and insect/disease) in forests of...

The U.S. Department of Agriculture (USDA), Forest Service, Forest Inventory and Analysis (FIA) program provides this resource update yearly as an overview of forest resources in New York. These estimates are derived from field data collected across a systematic network of fixed-radius forest monitoring plots located on both public and private land. New updates are provided annually as a subset of plots within the State are remeasured. Each year, field crews visit and measure a subset of all FIA plots across the entire State (the size of the subset varies by State and year). Combining all...

This document contains abstracts and papers of the oral and poster presentations offered at the 33rd USDA Interagency Research Forum on Invasive Species held in Annapolis, MD, in February 2025. The forum, sponsored by the Forest Service, Animal and Plant Health Inspection Service, National Institute of Food and Agriculture, and Agricultural Research Service, illustrates the depth and breadth of studies supported by the agencies and their cooperators.

This summary report provides an overview of the current conditions, changing trends, issues, and threats to Statewide forest resources based on findings from the 2018 inventory of Maryland’s forests based on data collected from 2012 through 2018. There are an estimated 2.4 million acres of forest land in Maryland primarily in private ownership (72 percent). Forest land is dominated by the oak/hickory forest-type group which occupies 59 percent of the total forest land area. Since 2013, growing-stock volume increased by 3 percent, totaling 5.7 billion cubic feet in 2018. Annual net growth...