HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Alexander, E. B. Search for Related Content PubMed Articles by Alexander, E. B. Agricola Articles by Alexander, E. B.

Bulk Densities of California Soils in Relation to Other Soil Properties¹

ABSTRACT

Analyses of 721 samples from inorganic horizons of upland and alluvial soils in seven orders were utilized to develop equations for predicting soil bulk density at 1/3-bar water content. The minimum standard errors of estimate (0.14 g cm^–3, r² = 0.723, for upland soils and 0.11 g cm^–3, r² = 0.672, for alluvial soils) were obtained with functions of organic carbon content, 15-bar water content, the ratio of 15-bar water to clay, silt and sand contents, parent material, calcium carbonate equivalent, mean soil horizon depth, and for alluvial soils, soil drainage class too. Functions of electrical conductivity of saturation extract and, for alluvial soils, mean soil horizon depth did not lower the standard errors of estimate (SE) further when added to this list. Organic C content (OC) alone predicts the bulk densities (DB) of upland soils with a SE of 0.19 g cm^–3 (r² = 0.462): DB = 1.66 – 0.308 · OC^0.5.

¹ Contribution from the Forest Service, USDA, 630 Snasome St., San Francisco, CA 94111.

² Soil Scientist, Watershed Management Staff.

Received for publication August 17, 1979. Accepted for publication March 31, 1980.

This article has been cited by other articles:

				N. Volland-Tuduri, A. Bruand, M. Brossard, L. C. Balbino, M. I. L. de Oliveira, and E. de Souza Martins Mass Proportion of Microaggregates and Bulk Density in a Brazilian Clayey Oxisol Soil Sci. Soc. Am. J., September 1, 2005; 69(5): 1559 - 1564. [Abstract] [Full Text] [PDF]

				B. De Vos, M. Van Meirvenne, P. Quataert, J. Deckers, and B. Muys Predictive Quality of Pedotransfer Functions for Estimating Bulk Density of Forest Soils Soil Sci. Soc. Am. J., March 1, 2005; 69(2): 500 - 510. [Abstract] [Full Text] [PDF]

				F.G. Calhoun, N.E. Smeck, B.L. Slater, J.M. Bigham, and G.F. Hall Predicting bulk density of Ohio Soils from Morphology, Genetic Principles, and Laboratory Characterization Data Soil Sci. Soc. Am. J., May 1, 2001; 65(3): 811 - 819. [Abstract] [Full Text] [PDF]