Content of Chemical Elements in Tree Rings of Lodgepole Pine and Whitebark Pine from a Subalpine Sierra Nevada Forest
Author: David Lawrence Peterson
Publisher:
Published: 1990
Total Pages: 16
ISBN-13:
DOWNLOAD EBOOK →Author: David Lawrence Peterson
Publisher:
Published: 1990
Total Pages: 16
ISBN-13:
DOWNLOAD EBOOK →Author: Philip M. McDonald
Publisher:
Published: 1980
Total Pages: 796
ISBN-13:
DOWNLOAD EBOOK →In a 1964-1967 study on the Challenge Experimental Forest, seedfall was evaluated in 2-, 5-, and 10-acre circular clearcuttings. During the 4 years, 10 seed crops, ranging from light to bumper, were produced by ponderosa pine. white fir, Douglas-fir, and incense cedar. Seedfall ranged from 76 to 40,691 sound seed per acre (188 to 100,547/ha) for a single species in a given year. From 89 to 100 percent of each species' seed fell within an area 1 1/2 times the height of the average dominant tree. Overall, seed distribution was highly variable.
Author: Jeffrey S. Dean
Publisher: Radiocarbon Department of Geosciences University of Arizona
Published: 1996
Total Pages: 916
ISBN-13:
DOWNLOAD EBOOK →Author: Peter Koch
Publisher:
Published: 1996
Total Pages: 430
ISBN-13: 9780935018783
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