A study of selected ecosystem parameters potentially sensitive to air pollutants in the Olympic Peninsula, 1984-1987

  • Creator(s): Mark E. Harmon
  • PI(s): Mark E. Harmon
  • Originator(s): Mark E. Harmon
  • Other researcher(s): Gail A. Baker, Sarah E. Greene, Jerry F. Franklin
  • Dates of data collection: Jun 19 1984 - Jan 1 1987
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • Last update: Apr 15 2003 (Version 2)
<Citation>     <Acknowledgement>     <Disclaimer>    
Harmon, M. 2003. A study of selected ecosystem parameters potentially sensitive to air pollutants in the Olympic Peninsula, 1984-1987. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: Accessed 2023-12-11.
Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.
To establish rates of ecosystem processes in a near pollutant free environment and measure yearly patterns of variability of these processes. The methodologies used in this study range from standard to untested designs. All procedures are being tested and scrutinized. Our goal is to make suggestions about the kinds of processes and procedures to measure and use for accurate baseline data collection. Leaf, needle, and branch decay is measured to determine the annual decay. Canopy litter input is collected and measured at monthly intervals. Determine patterns and rate of this fine litter input. Determine components of input, i.e. proportion needles cones, bark, fine branches, etc. Subproject is a study of ecosystem processes potentially sensitive to airborne pollutants. This study provides baseline data and measurement of natural variability in ecosystem functioning and productivity in a pristine area.

Study Description Taxonomic Hierarchy Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
1Litter Fall Data from Litter Buckets, B-Series, 10 comp. wts METADATADATA
2Litter Decay Data: Time Series, Litter Bags, pre+post Wts METADATADATA
3Litter Decay Data: Annual Data, Litter Bags, pre+post Wts METADATADATA
4Litter Decay: Data needed to calculate water content and RLF METADATADATA
5Yearly Nutrient Data: L/N Ratio, N and Lignin Contents (AES) METADATADATA
6N, Lignin Content of Conifer Needles (2-month Bucket Pool) METADATADATA
727 Element Analysis by Bucket Samples (N=25) METADATADATA
8Needle Population Structure: Twiglength-Needle Nr Regression METADATADATA
9Needle Population Structure: Twig Age - Needle Number METADATADATA
1027 Element Analysis by Month (n=12) METADATADATA