Using a tightly controlled, forested GPS test course located in Athens, Georgia, two smartphones, an iPhone 13 Pro (iOS) and Google Pixel 6 Pro (Android), were assessed to better understand their positional accuracy under different forest conditions and stand types. Additionally, a high precision external GNSS antenna was also assessed. With a focus on how professional foresters typically use their smartphones when collecting...

Research on vegetative propagation in the genus Khaya remains limited and has focused mainly on juvenile trees, which restricts the selection of plus trees previously tested for growth potential and economic value. This study aimed to evaluate the vegetative propagation of three African mahogany species by inducing epicormic shoots in adult trees, and to investigate evidence of rejuvenation/reinvigoration during adventitious r...

Stem diameter distributions underpin forest planning and inventory practice worldwide, yet permanent sample plot inventories are routinely truncated by merchantability limits and diameter caps. Truncated densities are the standard remedy, but those forms are seldom documented or supported in common software, so practitioners default to biased complete-form fits. We introduce a two-stage weighted least-squares workflow that ret...

Foliar moisture content (FMC) plays a crucial role in arid, frequent-fire forests by influencing fire behavior, tree survival, and serving as a proxy for tree health. Management actions such as mechanical thinning, flammable fuels reduction, and prescribed fires can act to mitigate wildfire risk and improve forest health by reducing fuel connectivity, diversifying forest structure, and creating canopy gaps. These management ac...

Tornadoes drastically impact managed forest landscapes, altering structure, composition, and economic valuation. Tornadoes occur frequently in the US and are projected to increase in the southeastern region, which is a substantial timber-producing region. Quantifying tornado damage in managed forest landscapes is important for guiding management decisions and modeling recovery efforts to recoup economic losses. We assessed the...

Peat extraction for nursery substrates contributes to carbon emissions and peatland destruction, highlighting the need for sustainable alternatives such as biochar. In this study, we evaluated how biochar substitution of peat (0–100% by volume) combined with four fertilizer rates (0, 0.5 × , 1 × (standard), 2 ×) affected seed germination, seedling survival, total seedling biomass, root-to-shoot biomass ratio (RSR), and CO₂ flu...

The Leaf Area Index (LAI) is a key ecological variable for monitoring land surface processes and plays an important role in understanding climate-sensitive forest ecosystems such as the Hyrcanian forests. This study aimed to estimate LAI using Linear Mixed-Effects (LME), M5 Model Tree (M5), Random Forest (RF), and Multiple Linear Regression (MLR) algorithms based on Landsat-8 and Sentinel-2 satellite data in the hardwood Hyrca...

Bark beetles contributing to ponderosa pine mortality in western North America are ecologically and economically impactful. Future climate patterns are expected to exacerbate these impacts. While reactive management aims to reduce the impact of bark beetle-caused tree mortality after these insects have already entered a forest system, preventative measures can serve to reduce the susceptibility of forested stands to epidemic b...

Wildfires can cause prolonged disruptions to public land access, affecting nearby local economies. As recreationists with varying levels of knowledge of wildfire increasingly visit fire-prone areas, reaching diverse audiences through non-traditional communication channels like local businesses offers novel opportunities for increasing engagement and outreach capacity. Business preparation for wildfire risk is central to develo...

Accelerating the development of more heterogeneous forest structures is an important goal of many contemporary forest management regimes. However, long-term silvicultural experiments that compare different approaches to generating structural complexity are rare. We took advantage of a replicated silvicultural experiment that was established in mountain ash ( Eucalyptus regnans ) forests in southeastern Australia in the late 19...

Understanding how tree growth responds to climate is important for predicting how plantation forests may react to ongoing climate change. In this study, we examined the climate–growth relationships of six Cryptomeria japonica cultivars across five common-garden sites in southwestern Japan using dendrochronological methods. We analyzed 48 years of ring width data to evaluate how monthly and annual temperature and precipitation...

A crop tree management study targeting green ash ( Fraxinus pennsylvanica Marsh.) was established in a 16-year-old, naturally regenerated, mixed-species, bottomland hardwood stand in southwest Tennessee. The goal was to maintain or improve ascendance of green ash into the overstory of a developing stand that otherwise might not occur. Three treatments were examined: a complete crown-touching release; the same release treatment...

Bark-stripping by Chacma baboons ( Papio ursinus ) presents a significant threat to the productivity and economic viability of commercial pine plantations in South Africa. This study examined the occurrence, characteristics, and impacts of baboon damage across 23,928 trees from 23 sites monitored for at least five consecutive years. The proportion of affected trees varied widely among sites (8–87%; mean = 37%, SE = 5.36). Stem...

Accurate prediction of forest growth and yield is essential for strategic planning in intensive plantation management. This study evaluates whether unsupervised anomaly detection can be used as a systematic data-quality layer in stand-level growth and yield modeling, after standard consistency checks have been applied. We used a multi-regional continuous forest inventory of hybrid Eucalyptus urophylla × Eucalyptus grandis plan...

Management of pine-hardwood mixtures or mixedwood forest types is gaining interest in the southeastern United States where landowner objectives/attitudes, rising management costs, timber and carbon markets, and logging workforce factors may provide rationale for favoring these forest types. However, few studies in the region have documented long-term stand development patterns for pine-hardwood mixtures. The objectives of this...