998 resultados para Monument National
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Bibliography: p. 16. Printed by Imrie, Graham and Co.
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This study documents historic fire events at Capulin Volcano National Monument over the last four centuries using dendrochronologically dated fire scars at two sites: the lower volcano lava flows (the Boca) and the adjacent canyon slopes (Morrow Ranch). The mean fire interval (MFI) was 12 years at the Boca site (before 1890) and 5.4 years (1600-1750) and 19.1 years (1751-1890) at the Morrow Ranch site. Data from the Boca and Morrow Ranch sites combined with the extremely pyrogenic landscape position of the volcano slopes indicate that the volcano slopes likely burned more frequently (e.g., MFI <5 yr). Around 1750, the fire regime appeared to transition to longer fire intervals, greater temporal synchrony among fire-scarred trees, and a higher proportion of trees scarred in fire years. Temporal variability in the fire regime at Capulin Volcano may reflect changes in human populations, climate, and land use.
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Mode of access: Internet.
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Shipping list no.: 99-0209-P.
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Includes bibliographical references (p. [93]-101).
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"September 1985."
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"Contract no. PX 7029-8-0986."
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Cover title.
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Mode of access: Internet.
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"March 1985."
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"February 25, 1984."
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"June 1989."
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Mode of access: Internet.
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On p. [2]: United States Dept. of the Interior ... National Park Service.