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Historical and modern disturbance regimes of pinon-juniper vegetation in the Western U.S.

Romme, William and Allen, Craig and Bailey, John and Baker, William and Bestelmeyer, Brandon and Brown, Peter and Eisenhart, Karen and Floyd-Hanna, Lisa and Huffman, David and Jacobs, Brian and Miller, Richard and Muldavin, Esteban and Swetnam, Thomas and Tausch, Robin and Weisberg, Peter (2007) Historical and modern disturbance regimes of pinon-juniper vegetation in the Western U.S. Technical Report. Colorado Forest Restoration Institute; The Nature Conservancy.

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Abstract

Pinon-juniper vegetation covers some 100 million acres in the western U.S. where it provides economic products, ecosystem services, biodiversity, and aesthetic beauty in some of the most scenic landscapes of North America. There are concerns, however, that the ecological dynamics of pinon-juniper woodlands have changed since Euro-American settlement, that trees are growing unnaturally dense, and that woodlands are encroaching into former grasslands and shrublands. Yet surprisingly little research has been conducted on historical conditions and ecological processes in pinon-juniper vegetation, and the research that does exist demonstrates that pinon-juniper structure, composition, and disturbance regimes were very diverse historically as well as today. The purpose of this report is to briefly summarize our current understanding of historical stand structures, disturbance regimes, and landscape dynamics in pinon-juniper vegetation throughout the western U.S. The authors gathered for a workshop in Boulder, CO, on August 22-24, 2006, to develop the information presented here.

Item Type: Monograph (Technical Report)
Keywords: ERI Library, report, Pinyon-Juniper, Pre-settlement, climate, drought, fire, grazing, tree infill, tree invasion, range expansion
Subjects: S Agriculture > SD Forestry
Department/Unit: Research Centers > Ecological Restoration Institute
Date Deposited: 06 Oct 2016 22:53
URI: http://openknowledge.nau.edu/id/eprint/2567

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