Displaying 21 - 30 of 55
Doolittle
Native food production in the Eastern Woodlands of North America before, and at the time of, European contact has been described by several writers as 'slash-and-burn agriculture,' 'shifting cultivation,' amd even 'swidden.' Select quotes from…
Type: Document
Year: 2004
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
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
Sorbel
Yellowstone National Park experiences as few as 4 to more than 81-wildland fire starts each year. Management decisions and evaluation of various alternatives must be done quickly. Fires allowed to burn as a wildland fire for resource benefit must be…
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