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Keyword: Populus tremuloides

Pathogenicity and distribution of two species of Cytospora on Populus tremuloides in portions of the Rocky Mountains and midwest in the United States

Publications Posted on: October 01, 2020
Historically, Cytospora canker of quaking aspen was thought to be caused primarily by Cytospora chrysosperma. However, a new and widely distributed Cytospora species on quaking aspen was recently described (Cytospora notastroma Kepley & F.B. Reeves).

Drought-conditioning of quaking aspen (Populus remuloides Michx.) seedlings during nursery production modifies seedling anatomy and physiology

Publications Posted on: October 01, 2020
In the western US, quaking aspen (Populus tremuloides Michx.) regenerates primarily by root suckers after disturbances such as low to moderate severity fires. Planting aspen seedlings grown from seed may provide a mechanism to improve restoration success and genetic diversity on severely disturbed sites.

Wood-colonizing fungal community response to forest restoration thinnings in a Pinus tabuliformis plantation in northern China

Publications Posted on: August 16, 2020
Forest restoration thinning in Chinese pine (Pinus tabuliformis) plantations can alter stand structure and soil abiotic properties, which have the potential to change biotic properties such as wood-inhabiting fungal community structure.

Wood decomposition after an aerial application of hydromulch following wildfire in a Southern California chaparral shrubland

Publications Posted on: August 16, 2020
Severe wildfire can affect many soil processes, especially organic matter (OM) decomposition. Organic mulches are often applied on steep slopes to mitigate soil erosion, but little is known about how these surface organic additions affect subsequent soil OM decomposition. In 2003 the Cedar Fire burned 110,000 ha in southern California chaparral shrubland, after which hydromulch was aerially applied to reduce soil erosion.

Sustaining aspen in western landscapes: Symposium proceedings; 13-15 June 2000; Grand Junction, CO

Publications Posted on: June 22, 2020
The current status and trend of aspen is a topic of debate; some studies have claimed dramatic reductions in aspen stands while others have found no major changes. The actual picture of aspen forests across the West is variable, and the presence of conifers and ungulates in aspen may or may not indicate a progressive loss of aspen.

Wildfire alters rate of wood decomposition both above- and belowground

Science Spotlights Posted on: June 09, 2020
Fire impacts on wood decomposition are important for understanding site-specific changes in soil carbon, the factors that control decomposition, and how they are affected by forest management. A recent study shows that wood decomposition in mineral soil can be quite rapid after a high-severity wildfire in two Montana forests. The researchers attributed these findings to the higher mineral soil temperatures in the burned area where there is no canopy coverage.

Effect of abscisic acid on sucker development and callus formation on excised roots of Populus tremuloides

Publications Posted on: March 11, 2020
Abscisic acid (ABA) inhibited sucker development and promoted callus formation from cambium exposed at cut ends of excised roots from two clones of trembling aspen, Populus tremuloides Michx. Clonal differences in response to ABA inhibition of sucker outgrowth appeared to be related to the developmental stage of the preexisting shoot primordia.

Tree-ring-based reconstructions of historical fire regimes for quaking aspen, Great Basin bristlecone pine and mountain sagebrush communities

Projects Posted on: August 07, 2019
Tree-ring based fire histories from Utah and Nevada reveal multi-century fire patterns for quaking aspen, mountain sagebrush and Great Basin bristlecone pine communities.

Test-driving a roadmap for quaking aspen restoration

Science Spotlights Posted on: July 24, 2019
Quaking aspen is the most widely distributed tree species in North America. Healthy aspen forests are highly productive and support greater biodiversity than any other upland forest type in the Intermountain West. Overall, quaking aspen has been in decline throughout much of the Region and is in need of restorative intervention.

Wildfire alters belowground and surface wood decomposition on two national forests in Montana, USA

Publications Posted on: June 26, 2019
Wildfires can drastically alter belowground processes such as organic matter (OM) decomposition.