Articles tagged with Forestry
Coastal forests face uncertain future as sea levels rise, with trees more vulnerable to saltwater flooding than marshes. Tree ring analysis reveals nuanced effects of flooding, temperature, and precipitation on tree growth, highlighting species- and site-specific factors.
Researchers developed DIAMANTE, a data-centric semantic segmentation approach to detect forest tree dieback events in satellite images. The approach trains a U-Net-like model on labelled remote-sensing datasets and achieves reasonable accuracy for early disease detection, reducing false alarms.
A new study investigates genetic diversity and population structure of common walnut (Juglans regia) in Central Asia. The research reveals moderate genetic diversity across the region, with a core genetic diversity region in the western Himalaya.
Rewilding efforts in Europe could help countries meet conservation goals with 70% of opportunities in colder climates. Passive and active strategies are proposed to create self-sustaining ecosystems.
Researchers found that mature trees increased wood production by an average of 9.8% under elevated CO2 levels, supporting their role as medium-term carbon stores and natural climate solutions. This increase was not accompanied by a corresponding rise in leaf or fine-root production.
A new study by the University of Exeter and Oxford found that integrated forest restoration plans deliver over 80% of benefits in all three areas - capturing carbon, nurturing biodiversity, and supporting human livelihoods. Socioeconomically disadvantaged groups benefit disproportionately from this approach.
Researchers used tree regeneration patterns to predict changes in US forests' carbon stocks, finding that 29% will lose and 55% will replace carbon. This study identifies vulnerable areas and prioritizes strategies for resilient forest management.
A new model reveals that phosphorus limitation reduces tropical forest productivity responses to rising CO2 concentrations. The study found that combined nitrogen and phosphorus limitations diminish CO2 fertilization effect on gross primary production and net ecosystem production by significant margins.
Researchers developed allometric equations to estimate above-ground biomass and carbon stock distribution among subtropical savanna components. The study found that soil holds the highest proportion of carbon, emphasizing its importance as a carbon sink in mitigating climate change.
The Western Fire & Forest Resilience Collaborative will engage a research team to study wildfire challenges and solutions in Colorado, leveraging fieldwork, remote sensing, and modeling to inform fire management strategies. The funding from Lyda Hill Philanthropies will help minimize devastating fires and maintain resilient forests.
A study proposes changes to simplify licensing for landowners in the Atlantic Rainforest biome, making conservation policy more effective. The current legislation allows for the destruction of valuable forests due to its subjective and imprecise criteria.
Households in Liberia that participated in forest-based activities reduced their food scarcity by 84 percent. The research also found that forests can capture carbon and advance sustainability goals for low- and middle-income countries, reducing hunger and improving well-being.
A new study reveals widespread decline in Western US forest carbon storage, likely caused by drought and fire. The research provides a framework for evaluating future changes and informing management strategies to mitigate carbon loss, highlighting the need for proactive forest management practices.
A recent study in China found that different tree species respond to extreme droughts in distinct ways. Native maple-oak forests and introduced poplar plantations showed varying levels of vulnerability to drought stress.
A study reveals that mixed forests store more soil organic carbon than pure forests due to higher wood debris storage. However, the quality of SOC in deep soil is better than surface soil. The findings highlight the importance of mixed forest and plant debris in maintaining forest carbon sequestration.
Researchers have found that climate change is driving tree species towards colder and wetter regions across Europe and North America. The study analyzed data from over two million trees and found that no single trait of the tree species could explain these changes.
Fine roots' lifespan varies across tree species, with evolutionary history playing a key role in shaping global patterns. Phylogeny, root traits, and environmental factors regulate fine root lifespan, with gymnosperms having longer lifespans than angiosperms.
Researchers found that reducing surface and ladder fuels through thinning, coupled with prescribed burning or pile burning, can significantly reduce future wildfire severity. The study's findings support the effectiveness of proactive ecological forest management in changing fire behavior and mitigating wildfire severity.
A new machine-learning system can automatically produce detailed maps from satellite data to show locations of likely beetle-killed spruce trees in Alaska. This helps forestry and wildfire managers make critical decisions as the beetle infestation spreads, affecting approximately 2 million acres across Southcentral Alaska.
A collaborative research study found that frequent, low-severity fires support Mexican spotted owl habitat, while high-severity fire is detrimental. This finding suggests that restoring historic fire regimes could benefit both owl conservation and forest resilience.
A new study found that removing hedgerows and field margins decreases the diversity and abundance of arthropods, which can lead to reduced natural pest control. The research suggests that using flowering plants in field margins and implementing agri-environmental measures can be effective ways to increase farmland biodiversity.
A worldwide analysis of voluntary carbon offset programs identified trends in renewable energy, forestry, and other technologies. Forestry and land management projects initially increased due to REDD+ programs, but shifted towards nature-positive solutions after 2016.
A new study reveals no consistent pattern between tree diversity and forest productivity at different elevations; biodiversity can increase or decrease productivity in various regions.
A comprehensive global dataset shows that phylogeny plays a crucial role in shaping wood density patterns. Wood density varies significantly among different biomes and climatic zones, with higher values found in drier regions. Phylogenetic signal explains 84.3% of total variation, while environmental factors account for only 2.7%.
A new study by the University of Plymouth found that saturated soils in upland regions could negatively impact the survival rates of young oak saplings and acorns. The research highlights the importance of considering soil conditions when creating temperate rainforests to combat climate change.
In Central Italy, traditional land management practices like leaf litter raking and sheep grazing reduced wildfire risk. However, these practices have been largely forgotten due to historical classism and sexism. The research highlights the importance of remembering these ancient practices in mitigating future wildfires.
A recent study by an international group found that forests with higher trait diversity adapt better to climate change and thrive. Higher productivity levels were maintained in diverse trees compared to monoculture forests.
A new report by a team of experts outlines an approach that combines Indigenous knowledge with Western science to develop more resilient forest management practices. The 'braided' approach aims to promote the health and diversity of forests, which are increasingly threatened by climate change.
A study in São Paulo's central area found that poor wood condition, sidewalk root constriction, and drastic pruning are major predictors of urban tree failure. The researchers propose guidelines for stakeholders to reduce the number of failures, which average 2,000 per year.
Researchers found that compact lignin nanoparticles with specific chemical structures and particle sizes boost the UV resistance of sunscreens, making them more effective than traditional formulations. The study suggests that lignin nanoparticles can be used as natural-based materials for improving sun protection in cosmetic applications.
Researchers from Shibaura Institute of Technology develop new methodology to accurately simulate soil behavior in rigid state, leveraging MSP method and Bingham fluid biviscosity model. The study highlights the impact of parameters on simulation accuracy and computational costs.
A new study reveals that ringtails prefer tree cavities in mature and older forests, rather than oak woodlands. Researchers found that the presence of fishers did not influence where ringtails chose to rest, providing important guidance for forest managers seeking to conserve these trees.
Historical spy-satellite photographs provide insights into past ecosystem changes, species populations, and human influences on the environment. The study's findings can aid conservation planning and ecosystem restoration efforts by mapping historical ecological baselines.
Researchers developed an unmanned forestry machine that can safely pick up logs using computer vision, autonomous navigation, and manipulator control algorithms. The machine reduces labor costs while minimizing environmental impact, promoting sustainable forestry.
Research by INRAE reveals that European forests with greater tree species diversity and slow-growing oak trees are better equipped to withstand storm damage. The study's findings suggest that monocultures of fast-growing pine trees are more susceptible to storm damage.
Researchers found that evergreen trees with smaller leaves, particularly those with awl-shaped leaves like Yew and Japanese cedar, were most effective at catching particles of pollution. In contrast, the study showed that the size and shape of the leaf, rather than its roughness or hairiness, was key to removing pollutants.
Research from the University of Surrey found that older tree plantations tend to be more biodiverse than younger ones. However, even the oldest plantations cannot match the natural diversity of original habitats. The study aims to promote responsible tree planting practices that prioritize biodiversity conservation.
A new study reveals that trees growing in wetter regions are more sensitive to drought, with up to 50% of species' ranges expected to become drier by 2100. Climate change models predict these areas will experience rapid drying, exposing trees to conditions beyond their adaptive capacity.
Research by The Jones Center at Ichauway found that hurricanes increase cone production in longleaf pine by 31% and 71% two years after the event, suggesting a possible explanation for the masting phenomenon. This discovery sheds light on the role of weather conditions in triggering seed germination.
Recent US legislation aims to increase fire management and tree planting to reduce large destructive fires and promote carbon sequestration. Fuel reduction activities are projected to remove 194-288 million metric tons of carbon from western forests over the next decade.
The study found significant variation in maximum allowable GVW limits for timber trucking across countries, with Japan having the strictest limits. Road transport accounted for 89% of total industrial roundwood moved over long distances, and average transportation costs ranged from 4-24 euros per tonne. The results highlight the need f...
New research reveals that secondary forests in the Amazon cover over 190,000 km² but connect more than 2 million isolated fragments of old-growth forest, crucial for biodiversity conservation. These forests also act as a buffer zone, shielding old-growth edges from negative effects like hotter temperatures and wind.
A new study found that wildfires and drought have led to a 10% reduction in the value of private timberland in three Pacific states over the past two decades. Climate change is attributed as the primary cause of this damage, with large wildfires causing an additional 8.7% loss.
Scientists have unlocked the genetic basis underlying the remarkable variation in body size observed in song sparrows, one of North America's most familiar and beloved songbirds. The study found eight genetic variants associated with body mass, largely responsible for the nearly threefold difference in body size across the species' range.
A team of experts identified 15 over-looked issues that could impact UK forests, including catastrophic ecosystem collapse, competition for water resources, and tree viral diseases. The research calls for urgent action to increase forest resilience.
Researchers find that halting deforestation and restoring native vegetation are critical for Brazil to achieve its 2050 net zero goal. The study suggests that nature-based solutions can mitigate nearly 80% of Brazil's net zero pledge and reduce carbon emissions by 781 million tons per year.
A new study using satellite imagery found that fires in boreal forests shift from coniferous to deciduous trees, but these changes are reversible over time. The study's findings suggest that continued climate warming and increased wildfire activity could lead to pronounced changes in forest composition.
Researchers found a 70% reduction in wild pig populations and a corresponding decline in environmental rooting damage within 24 months of control efforts. The study suggests that management efforts exceeding 40-60% population removal per year can significantly reduce populations, but unknown is the rate of recovery if efforts cease.
Researchers found that huckleberry patches and forestry road density significantly affect grizzly bears' mortality risk. Securing critical food resources through reduced human access near roads is crucial for bear conservation.
The Morton Arboretum will receive $15 million in federal funding to expand and improve tree canopy in disadvantaged communities. The Chicago Region Trees Initiative will award sub-grants to support equitable access to trees and bolster resilience to climate change.
A new UBC study used a local restorative nature index to assess the healing qualities of green space, finding that areas with the greatest need for restorative nature often have the least exposure to it. The study suggests that urban planners prioritize areas with high socioeconomic vulnerability and limited access to green spaces.
A team of researchers from UC Davis has developed a tool that can predict which forests are likely to survive or die after a drought. By analyzing changes in precipitation, soil moisture, and temperature, the tool links these factors to tree growth and carbon reserves.
A new modeling tool called REBURN can simulate large forest landscapes and wildfire dynamics under different management strategies. The tool shows that setting prescribed burns and allowing smaller wildfires to burn can yield more varied and resilient forests over time.
A new UBC study finds that clearcut logging leads to a significant increase in flood frequency and size, particularly in larger watersheds. The researchers used a novel method to isolate the effects of logging from climate background factors.
A new study from Lund University found that secondary forests in Sweden were more affected by the 2018 drought than primary forests. The research team analyzed satellite images and vegetation indexes to compare the impact of drought on both forest types.
Researchers discovered a key transcription factor mediating abiotic stress tolerance in conifers. The study found that the NAC transcription factor PtNAC3 is induced by various stresses and enhances unified abiotic stress tolerance without growth penalty.
A study by the University of Illinois examines how family forest landowners in Maine and New Hampshire approach invasive species management. The researchers found that landowners prefer mechanical control methods, which are more expensive but less effective than chemical control, due to strong neighborhood effects. This has implication...
A new study analyzed existing research on bee-protective measures and found that many common methods are backed by minimal scientific evidence. Researchers urge stronger testing to evaluate effective measures and warn of potential waste of time if ineffective.
Research suggests that Queensland's low-intensity forestry management techniques can restore wildlife habitat, promote floristic diversity, and improve the resilience of large trees against climate change. The study emphasizes that sustainably managing forests is crucial to maximizing global biodiversity and climate goals.
Researchers created a model to forecast eucalyptus leaf health based on temperature data, explaining over 80% of observed damage. This approach has the potential to identify suitable planting regions worldwide.