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Keyword: forest management

Comparative trends in log populations in northern Arizona mixed-conifer and ponderosa pine forests following severe drought

Publications Posted on: August 29, 2017
Logs provide an important form of coarse woody debris in forest systems, contributing to numerous ecological processes and affecting wildlife habitat and fuel complexes. Despite this, little information is available on the dynamics of log populations in southwestern ponderosa pine (Pinus ponderosa) and especially mixed-conifer forests.

Forest management and water in the United States [Chapter 13]

Publications Posted on: May 08, 2017
This chapter outlines a brief history of the United States native forests and forest plantations. It describes the past and current natural and plantation forest distribution (map, area, main species), as well as main products produced (timber, pulp, furniture, etc.). Integrated into this discussion is a characterization of the water resources of the United States and the importance of forests for water uses.

Forest management and the impact on water resources: A review of 13 countries

Publications Posted on: May 08, 2017
Trees have been around for more than 370 million years, and today there are about 80 thousand species of them, occupying 3.5 billion hectares worldwide, including 250 million ha of commercial plantations. While forests can provide tremendous environmental, social, and economic benefits to nations, they also affect the hydrologic cycle in different ways.

The effect of salvage logging on surface fuel loads and fuel moisture in beetle-infested lodgepole pine forests

Publications Posted on: February 06, 2017
Widespread tree mortality from mountain pine beetle (MPB; Dendroctonus ponderosae Hopkins) outbreaks has prompted forest management activities to reduce crown fire hazard in the Rocky Mountain region. However, little is known about how beetle-related salvage logging and biomass utilization options affect woody surface fuel loads and fuel moisture dynamics. We compared these attributes in salvage-logged lodgepole pine (Pinus contorta var.

Targeting forest management through fire and erosion modeling

Publications Posted on: January 06, 2017
Forests deliver a number of important ecosystem services, including clean water. When forests are disturbed by wildfire, the timing, quantity and quality of runoff are altered. A modelling study was conducted in a forested watershed in California, USA, to determine the risk of wildfire, and the potential post-fire sediment delivery from ~4-ha hillslope polygons within a 1500-km2 basin following a wildfire event.

Introduction to special issue on remote sensing for advanced forest inventory

Publications Posted on: January 06, 2017
Information needs associated with sustainable forest management are evolving rapidly as the forest sector works to satisfy an increasingly complex set of economic, environmental, and social policy goals. A barrier to the sustainable management of forests and the provision of ecosystem goods and services under these new pressures is a lack of up-to-date and detailed information with regard to the number and characteristics of forest resources.

Management of spruce-fir in even-aged stands in the central Rocky Mountains

Publications Posted on: December 09, 2016
Potential production of Engelmann spruce and subalpine fir in the central Rocky Mountains is simulated for combinations of stand density, site quality, ages, and thinning schedules. Such estimates are needed to project future development of stands managed in different ways for various uses.

Uneven-aged management of old-growth spruce-fir forests: Cutting methods and stand structure goals for the initial entry

Publications Posted on: December 09, 2016
Topics discussed include: (1) cutting methods, (2) stand structure goals, which involve choosing a residual stocking level, selecting a maximum tree size, and establishing a diameter distribution using the "q" technique, and (3) harvesting and removal of trees. Examples illustrate how to determine realistic stand structures for the initial entry for specific stand conditions, and management and silvicultural constraints.

Transferability of habitat suitability models for nesting woodpeckers associated with wildfire

Publications Posted on: October 25, 2016
Following wildfire, forest managers are challenged with meeting both socioeconomic demands (e.g., salvage logging) and mandates requiring habitat conservation for disturbance-associated wildlife (e.g., woodpeckers).

Proactive or reactive? Optimal management of an invasive forest pest in a spatial framework

Publications Posted on: September 30, 2016
This paper offers a preliminary investigation into the conditions under which it might be optimal to engage in proactive management of a non-timber forest resource in the presence of an invasive species whose spread is unaffected by management action. Proactive management is defined as treating an uninfected area in order to encourage healthy ecosystem function, given that the arrival of the invasive is inevitable.