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Keyword: western larch

Fire, larch, soil, and carbon: a 30-year-old story

Science Spotlights Posted on: December 18, 2020
Concern about changing climate is focusing attention on how silvicultural treatments can be used to regenerate or restore forested landscapes. In this study we leveraged a 30-year-old forest management-driven experiment to explore the recovery of woody species composition, regeneration of the charismatic forest tree species western larch, and vegetation and soil carbon and nitrogen pools. 

Warmer temperatures directly and indirectly affect western larch regeneration

Science Spotlights Posted on: August 25, 2020
Forest inventory data reveal direct and indirect effects of climate on western larch regeneration. A direct effect of climate is the shift of western larch regeneration toward cooler, drier sites and less regeneration at warmer, wetter sites. An indirect effect is that warmer temperatures are linked to increased wildfire, and western larch seedlings were more prevalent at recently disturbed sites.

Stewardship of western larch forests in an era of uncertainty

Projects Posted on: April 15, 2020
Northern Rockies managers and scientists are collaborating in a nation-wide silvicultural study to develop adaptive practices that support the endurance of these iconic forests under changing climate.

Stand density in relation to biological functions in young western larch forests

Publications Posted on: August 17, 2018
Dynamic change - that is what we see in the establishment and development of western larch (Larix occidentalis) forests. Spawned by traumatic events such as fire, harvesting, or post- harvest treatments that prepare receptive seedbeds, larch regenerates promptly and more often than not, excessively over much of its natural range (Schmidt and others 1976).

Stocktype and vegetative competition influences on Pseudotsuga menziesii and Larix occidentalis seedling establishment

Publications Posted on: May 31, 2018
Douglas fir (Pseudotsuga menziesii var. glauca (Mayr) Franco), and western larch (Larix occidentalis Nutt.) are species of ecological and commercial importance that occur throughout the Western United States. Effective reforestation of these species relies on successful seedling establishment, which is affected by planting stock quality, stocktype size, and site preparation techniques.

Cone and seed production of western larch in response to girdling and nitrogen fertilization - an update

Publications Posted on: May 11, 2018
Western larch (Larix occidentalis Nutt.) is a sporadic cone and seed producer. Because the species is such an important component of the -Northern Rocky Mountain forests, methods of increasing seed production are needed. Girdling, fertilizing, and a combination of the two were used on 75-year-old western larch in northern Idaho.

Response of western larch to site preparation

Publications Posted on: May 11, 2018
Western larch (Larix occidentalis Nutt.) regenerates and grows adequately on a variety of soils and sites. Mineral soil and burned-over surfaces are excellent for natural regeneration, but organic surfaces also provide adequate seedbeds. Planted western larch are aggressive root producers especially in moist soils. Best development occurs in soils with high organic matter content. Competing vegetation often reduces performance.

Characteristics of masticated particles in mixed-conifer forests of the western United States: Experimental burns and smoldering tests

Datasets Posted on: March 15, 2018
This data publication contains the results from 45 experimental burns and 48 smoldering tests on masticated materials from mixed-conifer forests. These data were collected from 15 study locations from 2012 through 2016 as part of the MASTIDON project. The MASTIDON project was a four-year study to describe the phyical characteristics of masticated materials that were treated with four different cutting heads in xeric and mesic environments.

Characteristics of masticated particles in mixed-conifer forests of the western United States: Moisture-loss tests

Datasets Posted on: March 15, 2018
This data publication contains the results of three separate moisture tests on masticated fuels collected from mixed-conifer forests in 14 study locations. These data were collected from 2012 through 2016 as part of the MASTIDON project.

Characteristics of masticated particles in mixed-conifer forests of the western United States: Shape, particle, and fuel load characteristics

Datasets Posted on: March 15, 2018
This data publication contains the results of sorting masticated particles from mixed-conifer forests in 15 study locations. These data were collected from 2012 through 2016 as part of the MASTIDON project. The MASTIDON project was a four-year research project to study how masticated material differs when treated with different cutting machines and how the masticated particles decompose when left on the ground for multiple years.

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