Publication Information
| Title:
| Release of Oregon white oak from overtopping Douglas-fir: effects on soil water and microclimate. |
| Author(s): |
Devine, W.D.; Harrington, C.A. |
| Date: |
2007 |
| Source: |
Northwest Science. 81(2): 112–124 |
| Description: |
Many former Oregon white oak woodland and savanna stands in the coastal Pacific Northwest have been invaded and subsequently overtopped by Douglas-fir during the past century. We examined soil water and microclimate conditions near overtopped oak trees and near oak trees that had been released from Douglas-fir. In each of the three study years, volumetric soil water content declined from ~25 percent to ~10 percent during the early-to-mid growing season near all trees, but this decline was delayed approximately one month in the released condition. Throughfall from May through July was increased by release, particularly during light rain events when Douglas-fir crowns intercepted a substantial fraction of total precipitation. Release from Douglas-fir also increased soil temperature, maximum air temperature, and maximum vapor pressure deficit. |
| Keywords: |
Quercus garryana, Oregon white oak, release, soil water, throughfall, microclimate |
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Citation
Devine, W.D.; Harrington, C.A. 2007. Release of Oregon white oak from overtopping Douglas-fir: effects on soil water and microclimate.. Northwest Science. 81(2): 112–124
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