Science Of Arboriculture

Dr. Zhu Ning discusses a recent study on the effects of elevated carbon dioxide levels on urban trees. Listen to this episode of Science of Arboriculture to learn more about the physiological processes of photosynthesis, transpiration, and stomatal conductance in Southern red oak and red maple. (A,U,M,T,L,Bs)

Arborists are industrial athletes, challenged every day to keep their bodies operating at peak performance to do their job. Amanda Carpenter and Jessica Skiera discuss how nutrition, hydration, and sleep can help or impair an arborist’s performance.

Alessandro Pestalozza was inspired to study the effects a previous branch failure has on its wind resistance after a fatal injury occurred on a busy street in Italy. Learn about how tree fibers respond to the extreme tension exerted by static pull tests in this effort to make our urban forest a safer place.

Tree canopy assessments provide a better understanding of the urban forest than conducting an inventory, because these assessments include trees on private property. Williams discusses the change of canopy cover in Portland, Oregon, based on the results of her 10-year canopy study.

Henry King discusses the principles of effective project management as a vegetation management contractor. Learn how to communicate across disciplines and execute a plan.

Bryant Scharenbroch discusses the effects of compaction to top-soil in urban development, and potential remediation options. Learn about the study he conducted to determine what common practices improve the quality of urban soils.

Gregory Moore discusses the economic value of shade trees in the urban forest. Learn about the role of trees in the heat island effect and how the loss of tree cover affects public open spaces.

Ken James explains his study on the effects of wind loads on both urban and forest-grown trees. Learn how branches affect the movement of trees during heavy wind loads, and how pruning decisions affect urban trees.

Matthew Palmer explains how visual tree assessment (VTA) has impacted utility network performance at Energex. Learn how to apply the visual tree assessment method and prioritize maintenance for utility networks, on this episode of Science of Arboriculture.

Learn how the electric power line company and forest service in the province of Alberta, Canada, successfully reduced the frequency and severity of forest fires on this episode of Science of Arboriculture.

Learn more about how biological control methods work, as Francis Schwarze explains the process for identifying the proper antagonistic strain for a pathogen, on this episode of Science of Arboriculture.

Timothy Johnson, Donald Cameron, and Gregory Moore collaborate to investigate the relationship between tree root growth, architecture, and surface infrastructure permeability. Learn about their results on this episode of Science of Arboriculture.

Dean Simonsen explains the results of a case study in Canberra, which used an innovative survey approach for analyzing the composition of the public urban forest. Learn about the benefits and challenges of completing an inventory using this approach, on this episode of Science of Arboriculture.

Ian Shears talks about a series of ongoing projects in the City of Melbourne that are working towards a long-term healthy urban forest, while creating a more sustainable and livable community. Learn how art, science, and technology can be used in combination to improve the physiological, sociological, economic, and aesthetic benefits of trees, on this episode of Science of Arboriculture.

Daniele Zanzi explains how the Static Integrated Method (SIM) is used to provide reliable measurements for estimating the stability of urban trees with root damage. Learn more about the application of experimental field pull tests on this episode of Science of Arboriculture.

John Goodfellow discusses the potential conflicts between trees and electric utilities. Learn about the fundamental causes of electrical faults and the principles for analyzing and mitigating potential utility risks in the field.

Correctly diagnosing the causes of tree decline can make managing tree health more successful. Listen to Paul Barber discuss factors in the urban forest that contribute to tree decline and how taking the time to correctly diagnose a disease can make the difference between sustaining and removing a tree.

Wildfires can inflict billions of dollars in damage, but can also expose utility companies to significant liabilities. In this podcast you can listen to Nelson Money talk about the challenges of fire risk management in utility arboriculture. Learn about strategies that he believes will increase safety in utility vegetation management and reduce the threats posed by wildfires.

Jim Neeser talks about the use of tree growth regulators (TGRs) in integrated vegetation management operations. Learn about the development of tree growth regulators and their use in the arboriculture industry, on this episode of Science of Arboriculture.

Angus and Graeme McMahon manage the maintenance of large and mature trees. Learn about the struggles and strategies of working with trees that are over 328 feet (100m), and the impact human interference may have on the future of these trees.