Considerations for throughfall chemistry sample-size determination

P. J. Edwards, P. Mohai, H. G. Halverson, D. R. Dewalle

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Both the number of trees sampled per species and the number of sampling points under each tree are important throughfall sampling considerations. Chemical loadings obtained from an urban throughfall study were used to evaluate the relative importance of both of these sampling factors in tests for determining species' differences. Power curves for detecting differences among species derived from the noncentrality parameter developed herein indicated that the number of trees sampled per species affects power more than the number of points sampled under each tree. -Authors

Original languageEnglish (US)
Pages (from-to)173-182
Number of pages10
JournalForest Science
Issue number1
StatePublished - Jan 1 1989

All Science Journal Classification (ASJC) codes

  • Forestry
  • Ecology
  • Ecological Modeling


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