Research on trees and their role in nature and cities. Covers forest conservation, tension wood, and the benefits of urban trees.
A new AI method using aerial imagery can reliably identify aspen trees and standing dead trees, crucial indicators of forest biodiversity. The technique has been proven effective in all seasons and can be scaled up for monitoring forest environments.
A new study highlights 21 critical barriers to implementing green and blue infrastructure, including technical, social, economic, governance, and policy challenges. The research provides actionable strategies for practitioners and policymakers to enhance GBI resilience across diverse urban settings.
A new study of 1960s maps created by young people has provided important insights into the timing and extent of habitat losses in England and Wales. The analysis revealed a significant decline in semi-natural habitats, including rough grassland, heath, and wetland, which have lost 42% of their original area over the past 90 years.
Research at the University of Helsinki reveals that forest thinning can temporarily boost carbon storage in upland forests, while drained peatlands become stronger net carbon sources due to slower tree growth and increased decomposition. The study highlights the importance of adapting management practices to different forest types.
A practical, evidence-based checklist developed by scientists at the University of Surrey is helping everyone plan their next greening project with confidence. The study found that mixed gardens, such as small front gardens with a tree, shrubs, and green walls, give the greatest economic benefits for their size.
Researchers studied the genetic response of umbrella acacia and splendid thorn acacia to drought stress. The study found that umbrella acacias prioritize continued growth over water conservation when water is scarce, using up all accessible water to survive severe droughts. In contrast, splendid thorn acacias invest in water conservati...
A study by the University of California, Davis found that 85% of elementary schools in California lost trees between 2018 and 2022, exacerbating heat and drought conditions. The research highlights the urgent need to protect existing tree cover and improve tree canopy in low-shade schools.
Genetic analysis reveals clear differentiation between Japanese and Taiwanese hinoki cypress, with divergence occurring 1 million years ago. The study highlights the need for revised classification systems based on genetic regional characteristics to preserve local genetic integrity.
Researchers found that increased canopy structural complexity drives positive biodiversity-productivity relationships in forests. Complementary use of canopy space by tree species enhances productivity and strengthens over time.
A study analyzing S. macrophylla's natural populations in Kalimantan revealed distinct genetic structures among northeastern, central, and southwestern populations. The ancestral population shows highest genetic diversity and is recommended for conservation as a separate management unit.
A new study suggests that Amazon forest trees have increased in size by an average of 3.2% every decade over the past few decades. The research found that both large and smaller trees have benefited from increased atmospheric carbon dioxide, leading to a significant increase in tree size.
The University of Oklahoma is developing an AI-driven framework to predict tree failures before extreme weather events. The TREE-CARE project will integrate advanced technologies with local knowledge to develop solutions that directly benefit communities.
Researchers at RIKEN Center for Sustainable Resource Science identified ancient protein SCORE to help plants defend against various pathogens. By engineering synthetic SCORE variants, plants can be made resistant to multiple pathogen types.
A new study from UNC-Chapel Hill has revealed a dual control system explaining why treelines form where they do and which tree species dominate them. Cold temperatures limit tree survival beyond a certain threshold, while water availability determines which species can thrive at high elevations.
A study by UKCEH found that ash dieback results in significant greenhouse gas emissions due to soil carbon losses. The research estimated 5.8 million tonnes of CO2 emissions over five years, equivalent to half the amount removed by broadleaf woodlands annually.
A new study found that planting trees in tropical regions can cool the climate by up to 0.8° F and reduce fire risk, offering significant benefits for global temperatures and ecosystems. The research emphasizes the importance of location in determining tree planting's impact on climate effects.
A University of Missouri-led study has uncovered how poplar trees can naturally adjust a key part of their wood chemistry based on changes in their environment, supporting improved bioenergy production. The discovery sheds light on the role of lignin and its potential to create better biofuels and sustainable products.
A large dataset on Mediterranean tree species has been compiled, revealing significant variations in endemic species across different botanical territories. The study highlights the need for stronger collaboration to support national and regional conservation policies for forest genetic resources.
Researchers found that the caterpillars' cycles interact with natural controls like viral disease, and they're highly adapted to their environment. Outbreaks can be predicted and damage controlled, but the exact timing is linked to specific factors.
A study analyzing genome data from teak trees found correlations between temperature and DNA sites, indicating adaptability to rising temperatures. The population in southern India demonstrated high adaptability, essential for effective management of genetic resources and resilient planting strategies.
Researchers found that mangrove populations have nearly tripled in areas with oysters, leading to significant acidification of oyster reef sediment. Oyster shell dissolution could impact reef viability and services like filtration and storm surge reduction.
ShadeLA aims to reduce heat risk by expanding tree canopy and shade infrastructure in key public spaces, targeting major sporting events and heat waves. The initiative builds on USC's Urban Trees Initiative and engages community-based organizations to create locally driven solutions for a more comfortable L.A.
A new study from Colorado State University and Western Colorado University found that aspen forests can act as natural firebreaks, slowing fires' spread. Aspen trees with high moisture content and chemical differences reduce flammability, making them more resistant to burning.
Researchers discovered that oak trees adjust their root systems to access more soil nutrients under elevated CO2, employing both 'do it yourself' and 'outsourcing' strategies. This adaptation enables the trees to optimize growth and maintain nutrient supplies.
Researchers used a data-driven approach to filter out ideal tree species for urban forests, mapping carbon stock and biogenic volatile organic compounds (BVOCs) emissions of six dominant urban tree species in Beijing. The study identified two optimal species: Betula platyphylla for high-altitude areas and Robinia pseudoacacia for urban...
Northern Arizona University is taking stock of its 5,000-6,000 trees to advance sustainability and carbon sequestration. The project will provide hands-on research opportunities for students and shed light on the trees' ability to mitigate climate change.
Researchers discovered that young secondary forests, aged between 20 and 40 years, exhibit the highest rates of carbon removal – locking away up to eight times more carbon per hectare than newly regenerating forests. Protecting existing young secondary forests offers immediate substantial carbon removal benefits.
A new study analyzes the benefits and trade-offs of urban street trees in Las Vegas, finding that they can create shaded spots nearly 30 degrees Fahrenheit cooler than surroundings. The study also highlights the limitations of tree-cooling benefits in hot, arid climates, where water conservation is crucial.
Nearly half of Mesoamerica's 4,000+ tree species are at risk of extinction, primarily driven by agriculture and logging. Conservation efforts are urgently needed to protect these species.
A study by Florida Atlantic University reveals that climate shifts starting around 500 A.D. led to shorter lives and faster growth in bald cypress trees, which may have made them more vulnerable to stress. The research provides a powerful lens into how widespread environmental changes can be.
Researchers found that Common Lime tree infections reduced water use and stem growth but still maintained cooling benefits. The study highlights the complexity of balancing disease control with ecosystem services.
A new study by Yale University scientists suggests that mangroves are more resilient than expected to intense and frequent storms due to climate change. The 'recovery debt' measure indicates that mangroves can recover from the loss of carbon during storms within four years, providing a valuable sink for carbon.
A new study suggests that reforestation efforts can lower global average temperatures by 0.34 degrees Celsius, roughly one-quarter of the warming already experienced. This is due to the chemical interactions between trees and the atmosphere, which amplify their cooling effect.
A new international study shows that El Niño and La Niña climate patterns affect nearly half of the world's mangrove forests, threatening these vital coastal ecosystems. Mangroves are experiencing widespread degradation during El Niño events and increased growth during La Niña events.
Research in rats suggests that Arbutus unedo extract can prevent changes in the colon's lining and reduce colonic lesions. The treatment also caused decreased expression of proteins promoting oxidative stress and inflammation.
Researchers found that dual symbioses between trees and mycorrhizal fungi enhance tree fitness, making them less sensitive to drought and nutrient scarcity. This cooperation enables trees to colonize a larger territory and adapt to harsher climates, particularly in dry areas.
A study by Brazilian, UK, and Dutch scientists found that just 30 species of trees dominate the Cerrado, accounting for almost half of all its trees. This phenomenon of hyperdominance has significant implications for understanding and conserving the ecosystem.
Researchers developed an AI system to classify tiny powdery pollen grains produced by fir, spruce, and pine trees, enhancing speed and accuracy. The tool can aid allergy sufferers, urban planners, farmers, and wildlife conservation efforts.
A new study predicts that new plant pests and diseases will severely damage UK trees and woodlands by 2050, potentially losing over half of their growth. The research highlights the need for increased tree diversity and resilience to biocontrol measures.
A new study has confirmed that beech leaf disease, already devastating American beech, also affects European beech. Researchers used advanced microscopy to trace the effects of the nematode on European beech, finding similar symptoms and damage as in American beech.
A new study by Simon Fraser University found gaps in BC's extreme heat response plans, with urban greening being the most common mitigation strategy. The research highlights the need for co-operation and co-ordination across jurisdictions to improve neighbourhoods and address socio-economic disparities.
Researchers have developed a new method to genetically improve poplar trees without introducing foreign DNA into its genome. This breakthrough could accelerate the deployment of genetically enhanced trees with benefits for both the environment and the bio-based economy.
Researchers found introduced tree species are picking up speed and decreasing native diversity over time. The study used data from a 120-year-old program to quantify the effects of introduced species on native ecosystems.
A study published by UC Davis Professor Hugh Safford found Jeffrey pines growing above 12,657 feet elevation, surpassing previous records. This discovery suggests that climate change is allowing trees to move higher up mountains at an alarming rate, with the birds carrying seeds being a key factor.
Researchers found that high tree mortality in upper canopy can promote oak regeneration when maple is removed from understorey. Plantings on thinned forest plots showed fewer signs of drought stress, supporting oak growth.
A new study from Umeå University reveals that trees' circadian clocks regulate growth and seasonal events. Adjusting clock-associated genes could help trees synchronize with changing climates, improving forestry management. The study also has implications for global vegetation models predicting forest growth and carbon storage.
A recent study reveals that tropical forests are home to an incredible diversity of chemical compounds, including terpenoids and alkaloids, which could have practical implications for human health. The researchers found that tree species in higher elevations tend to use similar chemicals to protect themselves from enemies.
A recent WSSA research article reveals that focusing solely on deer or invasive shrubs yields little forest health improvement. Instead, managing both threats is necessary to promote tree regeneration and plant community restoration, according to a study spanning over 10 years in Ohio.
A study in Brazil's Caatinga biome found that removing animals from degraded pastures did not restore soil health after three years. Green manure and strategic tree planting are recommended to accelerate ecological recovery. Soils show severe degradation, with carbon loss and decline in holistic soil health index.
Researchers found that Ficus insipida tree cores can be used to characterize spatial and potentially temporal mercury emissions from artisanal gold mining. Tree rings showed higher mercury concentrations near mining sites, indicating a potential network of biomonitoring.
A major new study reveals that tropical forests across the Americas are not adapting quickly enough to climate change. The study found that tree communities are responding too slowly to shifting temperatures and rainfall patterns, making them more vulnerable to extreme climate events.
A study led by Evan Gora found that Dipteryx oleifera trees can survive direct lightning strikes with minor damage, while other trees are badly damaged. The researchers discovered that these trees tend to have fewer lianas and are more likely to gain an advantage in competing for light and space after being struck by lightning.
A new study suggests that easing L.A.'s outdated tree planting rules could significantly grow the city's urban tree canopy without compromising safety. By relaxing restrictions near intersections, utility poles, gas lines, and other infrastructure, tree coverage in lower-income neighborhoods like Boyle Heights could increase by up to 26%.
A new study by Holden Forests & Gardens reveals that American beech trees are experiencing significant mortality and reduced growth due to beech leaf disease, with 30% of trees dying since its emergence in northeast Ohio. The disease has also slowed tree growth, energy loss, and increased mortality in affected plots.
Researchers identified that conservative tree species, which conserve resources rather than extract them, have a greater potential to fix carbon in biomass under real-world conditions. In favorable climates and fertile soils, acquisitive species grow faster but fix less carbon.
Research proposes a new methodology for dynamically optimizing solar panel positioning based on the light needs of crops. Advanced ray tracing techniques are used to evaluate the distribution of solar radiation, enabling the automation of design optimization of agrivoltaic systems.
Researchers have employed artificial intelligence and data analysis to improve forest protection, enabling real-time monitoring and predictive analysis. The innovative forest regeneration model forecasts how forests will grow and change over time, identifying best-suited tree species for different environments.
A new study reveals that tropical forests in the Americas are not adapting quickly enough to keep pace with climate change, with some species thriving while others struggling. The research found that traits such as being deciduous and drought tolerance influence a tree's ability to survive in a changing climate.
Researchers analyzed satellite data from the Sentinel-2 satellites to predict variations in tree traits and map functional diversity. They found significant differences in forest function across continents, with American tropical forests showing greater functional richness than African and Asian forests.
A new study finds that tree planting can be the most cost-effective way of removing carbon as long as careful choices are made about which type of trees to plant and where. This approach balances risks and minimizes the danger of betting on the wrong future.