Displaying 31 - 40 of 68
Hirsch, Kafka, Todd
During the next few decades, a considerable portion of the productive boreal forest in Canada will be harvested and there is an excellent opportunity to use forest management activities (e.g., harvesting, regeneration, stand tending) to alter the…
Type: Document
Year: 2004
Hessburg, Agee
Fire was arguably the most important forest and rangeland disturbance process in the Inland Northwest United States for millennia. Prior to the Lewis and Clark expedition, fire regimes ranged from high severity with return intervals of one to five…
Type: Document
Year: 2003
Benedict
Shallow soil cores from 56 localities along the crest of the Colorado Front Range were processed by water flotation and wet sieving, then examined for wood charcoal and charred conifer-needle fragments. Charred particles were largest and most…
Type: Document
Year: 2002
Motzkin, Foster
Aim This study evaluates the long-term history of grassland, heathland and shrubland communities that are high priorities for conservation in the north-eastern US and support numerous globally rare species. Such an historical perspective is…
Type: Document
Year: 2002
Wright, Stewart, Swain, Shreve
From the text...'The Department of Defense, as stewards of military lands, considers cultural resource protection a part of its central mission, 'the defense of the United States - its people, its land, and its heritage.' At Eglin Air Force Base,…
Type: Document
Year: 2001
Ison
Unlike many areas of the United States, anthropogenic fires are the prime agent for affecting changes in plant and animal species composition in the southern Appalachian Highlands. Although the extensive use of fire by the American Indians has been…
Type: Document
Year: 2000
Lindbladh, Bradshaw, Holmqvist
1. Two palaeoecological data sets were used to study forest development in the boreo-nemoral zone of southern Sweden during the last 3000 years. Maps of forest types present in 1250 B, AD 500 and today were compiled from regional pollen data and…
Type: Document
Year: 2000
Brown
From the text ... 'One of the first things that the English discovered about American Indians in Virginia was that they burned their wildlands. ...Four purposes for burning--agriculture, hunting, range management, and travel--would probably have…
Type: Document
Year: 2000
Stowe
The South Carolina Department of Natural Resources (DNR) acquires land in the state to protect rare species and ecosystems, and significant cultural and archaeological sites. These lands -- called heritage preserves (HPs) -- also provide outstanding…
Type: Document
Year: 1999
Hardy, Keane, Harrington
From the text...'The term restoration relates to activities required to reduce hazards from wildland fires and improve federal forest and grassland health to a condition that can be maintained through periodic disturbance. Restoration and…
Type: Document
Year: 1999