Displaying 1 - 10 of 12
Cayless, Tipping
Pollen, microscopic charcoal and peat humification analyses were applied to radiocarbon-dated peat cores to examine environmental change before and after the mid-Holocene transition from hunter-gatherer (Mesolithic) to agricultural (Neolithic)…
Type: Document
Year: 2002
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
Leonard
Reports on a survey conducted by archaeologists on sites impacted by the Rodeo-Chediski wildfire in Arizona. Information on the archaeological sites within the fire's perimeter range; Details on the threat posed by wildfires to archaeological sites…
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
Keeley
Aim
Native American burning impacts on California shrubland dominated landscapes are evaluated relative to the natural lightning fire potential for affecting landscape patterns.
Location
Focus was on the coastal ranges of central and southern…
Type: Document
Year: 2002
Keeley
Aim: Native American burning impacts on California shrubland dominated landscapes are evaluated relative to the natural lightning fire potential for affecting landscape patterns. Location: Focus was on the coastal ranges of central and southern…
Type: Document
Year: 2002
LeQuesne, Villagran, Villa
Here we present fossil pollen and charcoal concentrations results from two stratigraphic columns from Isla Mocha (38°19'-38°25'S; 73°57'-73°52'W), Laguna Hermosa (350 m.a.s.l.) and Laguna Huairavos ( 125 m.a.s.l.). These results suggest that the…
Type: Document
Year: 1999
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
Hornberg, Ostlund, Zackrisson, Bergman
1. In northern Fennoscandia a rare forest type, characterized by Cladina species and Picea abies, occurs on dry productive sites outside the range of permafrost but close to the Scandes mountains. 2. We determined the history of vegetation…
Type: Document
Year: 1999