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| DatasetID |
303 |
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| Name |
Long term vegetation patterns in California Pinus radiata stands
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| Description |
Repeat sampling of 19 native Pinus radiata D. Don stands, each about one ha, was conducted after a 28-29 year interval. Tree density decreased from 636 per ha in 1965-1966 to 460 in 1994, probably due to mortality of young P. radiata. In these unburned stands, tree seedling densities were low for all species, and similar for both sample times although the density by stand was variable-from 11 to 790 per ha in 1965-1966 and 15 to 986 per ha in 1994. Two-thirds of the tree seedlings sampled were Quercus agrifolia Nee, easily growing under the P. radiata canopies. Tree sapling densities were also low, averaging 177 per ha in 1965-1966 and 99 in 1994. In 1965-1966 only 58% of the saplings were P. radiata, and in 1994 only 50% were P. radiata. The rest, except for a single Arbutus menziesii Pursh, were Q. agrifolia, having tolerated heavy deer browsing as seedlings for years and finally producing a central stem emerging as a sapling. The stands reflect a sequence of maturation, from dense P. radiata poles to sparse large P. radiata trees with small Q. agrifolia trees below. Stands that were logged in the past (decades prior to 1965-1966) had high numbers of Q. agrifolia (seedlings, saplings and trees) below those few large P. radiata trees left (for unknown reasons) after logging. Of the 38 stands of P. radiata sampled in 1965-1966 on the Monterey Peninsula, 12 had been seriously modified by human activity by 1994.
Study appears to focus mainly on a few species, need to look at print copy to determine if there is useful data
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| Physical Location |
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| Publisher/Owner |
Keith White, University of Wisconsin-Green Bay
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| Publication Date |
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| Permissions |
Undetermined
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| Source |
Mark Stromberg NRS file
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| Contact |
Mark Stromberg
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| Type |
Biological Survey - Observational
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| Subject |
Plant
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| Geo. Extent |
Hastings Reserve
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| URL |
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| NRS Registry? |
yes
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| Format |
Paper
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| Timespan Start |
1965
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| Timespan End |
1994
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| Total Items |
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| Databased Items |
0 (as of 2012-09-03)
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| Comments |
White, Keith L. 1999. Revisiting native Pinus radiata forests after twenty-nine years. Madrono 46 (2): 80-87.
print copy found in Biosciences Library QK1 .M28
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| Entered By |
Jessica Rothery
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| Last Updated |
2012-09-03 14:26:51
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