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Nitrogen Deposition Primary Effects on Forest Ecosystems

Relationships Among Stressors, Forests, and Aquatic Systems *As Number and Severity of Stressors Increase, The Impacts to Forests and Associated Aquatic Systems Increase. Nitrogen Deposition Primary Effects on Forest Ecosystems.

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Nitrogen Deposition Primary Effects on Forest Ecosystems

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  1. Relationships Among Stressors, Forests, and Aquatic Systems*As Number and Severity of Stressors Increase,The Impacts to Forests and Associated Aquatic Systems Increase

  2. Nitrogen Deposition Primary Effects on Forest Ecosystems

  3. Relationships between Cations in Streams and Forest Health Indicators

  4. Neversink Watershed Calcium in Soil and Foliage of Yellow Birch and Sugar Maple, and levels of Putresine in Foliage

  5. Phase 4 Plots --probability estimate for entire watershed Phase 5 Plots --deliberately co-located with process studies

  6. P4 Tree Data (25%)Neversink Watershed

  7. Phase 4 PlotsNeversink Watershed--20010-10 cm Mineral Soils pH or % Cmolc/kg pH (water) Percent Total Carbon Percent Total Nitrogen ECEC

  8. Hypothetical Relationships among P4 + P5 Indicators and Steam Condition

  9. Since Thresholds for Water Quality, for Human Consumption and Aquatic Life, have been Established, they can be used toDetermine Thresholds for P4 and P5 Indicators.By use of GIS and Analytical Models, the Indicator Values observed on P2 and P3 Plots can beAnalyzed using Ecologically-Meaningful Thresholds

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