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Ohia forest decline : its spread and severity in Hawaii

Author: Edwin Q P Petteys; Robert E Burgan; Robert E Nelson; Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
Publisher: Berkeley, Calif. : Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975.
Series: USDA Forest Service research paper PSW, 105.
Edition/Format:   Print book : National government publication : EnglishView all editions and formats
Summary:
Ohia forest decline-its severity and rate of spread-was studied by aerial photographic techniques on a 197,000-acre (80,000-ha) portion of the island of Hawaii. In 1954, only 300 acres (121 ha) showed signs of severe decline; by 1972, the acreage of severely affected forest had increased to 85,200 acres (34,480 ha). Rate of decline and current severity were related to mean annual precipitation and to elevation. The  Read more...
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Additional Physical Format: Online version:
Petteys, Edwin Q. P.
Ohia forest decline.
Berkeley, Calif. : Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975
(OCoLC)1021869416
Material Type: Government publication, National government publication, Internet resource
Document Type: Book, Internet Resource
All Authors / Contributors: Edwin Q P Petteys; Robert E Burgan; Robert E Nelson; Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
OCLC Number: 16345128
Notes: Cover title.
Description: 11 pages : illustrations, maps ; 27 cm.
Series Title: USDA Forest Service research paper PSW, 105.
Responsibility: Edwin Q.P. Petteys, Robert E. Burgan, Robert E. Nelson.

Abstract:

Ohia forest decline-its severity and rate of spread-was studied by aerial photographic techniques on a 197,000-acre (80,000-ha) portion of the island of Hawaii. In 1954, only 300 acres (121 ha) showed signs of severe decline; by 1972, the acreage of severely affected forest had increased to 85,200 acres (34,480 ha). Rate of decline and current severity were related to mean annual precipitation and to elevation. The epidemic is continuing. Some forests on other Hawaiian islands also display decline symptoms.

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