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Water relations characteristics of competing singleleaf pinyon seedlings and sagebrush nurse plants

Citation

Drivas, Evan P, and Everett, Richard L, Water relations characteristics of competing singleleaf pinyon seedlings and sagebrush nurse plants: .

Summary

Encroachment of singleleaf pinyon (Pinus monophylla) into adjacent low sagebrush (Artemisia arbuscula) and basin big sagebrush (Artemisia tridentata ssp. tridentata) communities may be enhanced by the efficient use of limited water resources by tree seedlings. Seedlings and sagebrush nurse plants were monitored over two growing seasons to determine water-use patterns. Predawn xylem water potential of low sagebrush declined rapidly, reaching ?3.5 to ?5.5 MPa by late summer. Big sagebrush values dropped to ?2.0 to ?3.0 MPa during summer drought. The drop in sagebrush xylem water potential was related to the decline in soil water potential (r=0.68 and 0.82). The change in pinyon predawn xylem water potential was moderate, declining to [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS Export <br> On - Wed Sep 19 08:08:31 MDT 2012

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Title Citation Water relations characteristics of competing singleleaf pinyon seedlings and sagebrush nurse plants

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