Treesearch

A 2021 analysis of the urban forest in Minneapolis, Minnesota reveals that this area has an estimated 1.8 million live trees across all ownerships. The most common large diameter (11.0+ inches) tree species are hackberry, American elm, silver maple, bur oak, and honeylocust. Trees in Minneapolis are estimated to be currently storing about 228,000 tons of carbon (837,000 tons of carbon dioxide [CO2]) valued at $38.9 million. In addition, it is estimated that these trees annually remove about 26,000 tons of CO2 and about 774 tons of air pollution. Minneapolis’ urban forest is estimated to...

Beech leaf disease (BLD), caused by the nematode Litylenchus crenatae ssp. mccannii (LC), poses a severe threat to American beech (Fagus grandifolia) across eastern North America. The disease causes wholesale anatomical, morphological, and physiological alterations, including symptoms such as leaf banding and bud abortion; the latter eventually leads to beech mortality, especially of younger trees. This outcome severely affects regeneration and diminishes the important ecosystem services provided by this keystone species. To advance our understanding of the disease, we hypothesized that...

Aspects of red spruce’s climatic niche and its relation to the biogeography of the species are covered in Chapter 1. Our emphasis here is on red spruce’s interaction with its biophysical environment in terms of a changing climate, what this might illuminate about the nature of its climate sensitivities, and how it may respond to future climate change. We approach this from an interdisciplinary viewpoint that integrates perspectives across biological, temporal, and spatial scales not often discussed together in the same work. We first briefly summarize key features of red spruce’s climate...

The first efforts to restore red spruce (Picea rubens) ecosystems in the central and southern Appalachians began nearly 100 years ago, following broad scale declines that resulted from industrial logging activities and associated wildfires. While many localized efforts have occurred over the last century, the scale of red spruce restoration has dramatically increased over the last two decades. In the mid-2000s, the Central Appalachian Spruce Restoration Initiative (CASRI) was formed to bring restoration partners together, followed by establishment of the Southern Appalachian Spruce...

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 Minnesota. 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 relationships between tree size and abundance and how these relationships change following disturbance can influence silvicultural decisions such as stocking targets. Measuring tree size and abundance in the field, however, can be time consuming and costly. Data from two long-term forest monitoring networks were used to better understand the effects of disturbance on tree size-abundance relationships and to develop a way to accurately estimate tree size distribution using readily available remotely sensed data. Findings take steps towards more accurate predictions of forest structure...

A 2018 analysis of the urban forest in Springfield, Missouri reveals that this area has an estimated 3.6 million live trees across all ownerships, two-thirds of which are under 5.0 inches in diameter. The most common large diameter (11.0+ inches in diameter) tree species are black walnut, silver maple, and hackberry. The most common tree species in maintained areas of the city are Siberian elm, eastern redbud, and hackberry. Trees in Springfield are estimated to be currently storing about 342,000 tons of carbon (1.3 million tons of carbon dioxide) valued at $58.4 million. In addition, it...

A survey of the urban forest was conducted in Providence, Rhode Island from 2015 to 2021. Across the 13.1 thousand acres encompassing the city, there are an estimated 495.2 thousand live trees. More than half of tree stems are small diameter (under 5.0 inches in diameter). The most dominant species based on the number of trees and leaf area are Norway maple, black oak, northern red oak, American elm, and northern white-cedar. Trees on public lands account for 30.0 percent of the total live tree population. Trees on private lands account for 70.0 percent. A majority of trees on private land...

A 2021 analysis of the urban forest in Des Moines, Iowa, reveals that this area has an estimated 2.5 million live trees across all ownerships. The most common tree species by number are American elm, green ash, and boxelder. Trees in Des Moines are estimated to store about 466,000 tons of carbon (1.7 million tons of carbon dioxide [CO2]) valued at $79.5 million. In addition, it is estimated that these trees remove about 12,000 tons of carbon per year (or 44,000 tons CO2 per year, valued at $2.1 million, an amount roughly equivalent to the annual emissions associated with 8,700 passenger...

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 Michigan. 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...