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A Legacy of Change: Historic Human Impact on Vegetation in the Arizona Borderlands - Couverture rigide

The University Of Arizona Press

 
9780816512041: A Legacy of Change: Historic Human Impact on Vegetation in the Arizona Borderlands
Couverture rigide
ISBN 10 : 0816512043 ISBN 13 : 9780816512041
Editeur : University of Arizona Press, 1991

Synopsis

The arrival of Anglo settlers in the 1870s marked the beginning of major vegetation changes in southeastern Arizona, including an increase in woody plants in rangelands, the degradation of riparian wetlands, and the spread of non-native plants. While many of these changes have already been linked to human land-use through comparative photographs and historic descriptions, it has long been presumed that changes in the region's climate have also contributed to vegetation change.

Geographer Conrad Bahre now challenges the view that these vegetation changes are due to climatic change. Correlating his own field research with archival records and photographs, Bahre demonstrates that most of the changes follow some type of human disturbance, such as cattle grazing, fuelwood cutting, wildfire suppression, agriculture, and road construction. Indeed, all available evidence suggests that Anglo settlement brought unprecedented changes to the land.

Vegetation change in the American West has long been an issue of concern. This careful scrutiny of one corner of that region--one of the most ecologically diverse areas of the United States--shows how poorly understood is the relationship between human activities and vegetation. More important, it introduces new techniques for differentiating between natural and anthropogenic factors effecting vegetation change that can be used to help ecologists understand vegetation dynamics worldwide.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

À propos de l'auteur

Conrad J. Bahre is a professor of geography at the University of California, Davis. He is also the author of Destruction of the Natural Vegetation of North-Central Chile.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
University of Arizona Press
Date d'édition
1991
Langue
anglais
ISBN 10 
0816512043
ISBN 13 
9780816512041
Reliure
Relié
Nombre de pages
231
Coordonnées du fabricant
non disponible
Personne responsable
non disponible