Statistics
Publications
12
Citations
2.1K
H-Index
11
Active since
1982
Douglas F. Ryan is an author at University of Pennsylvania specializing in agriculture, soil sciences, and soil science.
Publications per year
1982–2000
12
12
The biogeochemistry of calcium at Hubbard Brook
Gene E. Likens, Charles T. Driscoll, D. C. Buso et al. · Biogeochemistry · 1998 · 504 citations
Nutrient Resorption in Northern Hardwood Forests
Douglas F. Ryan, Franz–Josef Bormann · BioScience · 1982 · 159 citations
Agriculture, Ecology, Soil Sciences +14
CARBON, ORGANIC MATTER, AND BULK DENSITY RELATIONSHIPS IN A FORESTED SPODOSOL
Thomas G. Huntington, Chris E. Johnson, A. H. Johnson et al. · Soil Science · 1989 · 142 citations
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