Spatial variation in chemical properties of forest floor and surface mineral soil in the north central United States von Grigal, D.F. (USDA Forest Service, North Central Forest Experiment Station, St. Paul, MN), McRoberts, R.E, Ohmann, L.F

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Sulfur, carbon, and nitrogen relationships in forest soils across the northern Great Lakes States as affected by atmospheric deposition and vegetation von David, Mark B, Grigal, David F, Ohmann, Lewis F, Gertner, George Z

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Spatial and temporal patterns of sulfur and nitrogen in wood of trees across the north central United States von Ohmann, L.F, Grigal, D.F

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Woody tissue analysis using an element ratio technique (DRIS) von Riitters, K.H, Ohmann, L.F, Grigal, D.F

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Biomass distribution of unmanaged upland forests in Minnesota von Ohmann, Lewis F., Grigal, David F.

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Bulk density of surface soils and peat in the North Central United States von Grigal, D.F, Brovold, S.L, Nord, W.S, Ohmann, L.F

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Growth in relation to canopy light interception in a red pine (Pinus resinosa) thinning study von LAW, B. E, RIITTERS, K. H, OHMANN, L. F

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Seasonal change in nutrient concentrations in forest herbs von Grigal, D. F., Ohmann, L. F.

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Properties of soils and tree wood tissue across a Lake States sulfate deposition gradient / Lewis F. Ohmann and David F. Grigal von Ohmann, L. F

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Properties of soils and tree wood tissue across a Lake States sulfate deposition gradient von Ohmann, L. F

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Influence of flooding duration on the biomass growth of alder and willow / Lewis F. Ohmann, M. Dean Knighton, and Ronald McRoberts von Ohmann, L. F

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Physical characteristics of study plots across a Lake States acidic deposition gradient von Ohmann, L. F

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Physical characteristics of study plots across a Lake States acidic deposition gradient / Lewis F. Ohmann, David F. Grigal, and Sandra Brovold von Ohmann, L. F

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Plant species biomass estimates for 13 upland community types of northeastern Minnesota / Lewis F. Ohmann and David F. Grigal von Ohmann, L. F

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Biomass in conifer plantations of northeastern Minnesota / Lewis F. Ohmann von Ohmann, L. F

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Tall shrub layer biomass in conifer plantations of northeastern Minnesota / Lewis F. Ohmann von Ohmann, L. F

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Estimating plant biomass for undergrowth species of northeastern Minnesota / Lewis F. Ohmann, David F. Grigal, and Lynn L. Rogers von Ohmann, L. F

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Biomass estimation for five shrubs from northeastern Minnesota / Lewis F. Ohmann, David F. Grigal, Robert B. Brander von Ohmann, L. F

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Vegetation data collection in temperate forest research natural areas / Lewis F. Ohmann von Ohmann, L. F

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Wilderness ecology : a method of sampling and summarizing data for plant community classification / [by] Lewis F. Ohmann [and] Robert R. Ream von Ohmann, L. F

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