Variation in mineral content of red maple sap across an atmospheric deposition gradient
- Pennsylvania State Univ., University Park, PA (United States)
Xylem sap was collected from red maple (Acer rubrum L.) trees during the spring of 1988 and 1989 at seven forest sites along an atmospheric deposition gradient in north central Pennsylvania and analyzed for pH and twelve mineral constituents. The objectives of the study were to examine the sources and patterns of variation in red maple sap chemistry across an atmospheric deposition gradient and to assess the feasibility of using sap analysis as an indicator of nutrient bioavailability. For most sap constituents, there was considerable spatial and temporal variation in concentration. Sources of variation included within and between site variation, date, and year of collection. The nature and extent of variation varied for different constituents. Site differences were similar in 1988 and 1989 for most sap constituents and for some constituents corresponded with differences in soil levels.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 535294
- Journal Information:
- Communications in Soil Science and Plant Analysis, Vol. 28, Issue 3-5; Other Information: PBD: 1997
- Country of Publication:
- United States
- Language:
- English
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