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

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via ISI Web of Science (1) Citing Articles via Google Scholar Google Scholar Articles by Blanco-Canqui, H. Articles by Shipitalo, M. J. Search for Related Content PubMed Articles by Blanco-Canqui, H. Articles by Shipitalo, M. J. Agricola Articles by Blanco-Canqui, H. Articles by Shipitalo, M. J. Related Collections Structure and Properties Soil Organic Matter Tillage

Organic Carbon Influences on Soil Particle Density and Rheological Properties

^a Carbon Management and Sequestration Center, FAES/OARDC, School of Natural Resources, The Ohio State Univ., 210 Kottman Hall, 2021 Coffey Rd., Columbus, OH 43210-1085
^b Environmental Science Div., Oak Ridge National Lab., Oak Ridge, TN 37831
^c Joint Global Change Research Inst., 8400 Baltimore Ave., Suite 201, College Park, MD 20740-2496
^d USDA-ARS, North Appalachian Experimental Watershed, P.O. Box 488, Coshocton, OH 43812-0488

View larger version (16K): [in a new window]   Fig. 1. Mean soil particle density at three depths for moldboard plow (MP), no-till with no beef cattle manure (NT), no-till with beef cattle manure (NTm), pasture, and forest long-term management practices at the Northern Appalachian Experimental Watershed in Coshocton County, OH. The LSD bars at a given soil depth indicate the significance of particle density among the five management practices.

View larger version (14K): [in a new window]   Fig. 2. Mean soil organic C concentration at three depths for moldboard plow (MP), no-till with no beef cattle manure (NT), no-till with beef cattle manure (NTm), pasture, and forest long-term management practices at the Northern Appalachian Experimental Watershed in Coshocton County, OH. The LSD bars at a given soil depth indicate the significance of soil organic C concentration among the five management practices.

View larger version (21K): [in a new window]   Fig. 3. (A) Relationships of bulk and particle density of soil with SOC (soil organic carbon) concentration for the 0- to 10-cm depth and (B) depth distribution of bulk density under moldboard plow (MP), no-till with no beef cattle manure (NT), no-till with beef cattle manure (NTm), pasture, and forest long-term management practices at the Northern Appalachian Experimental Watershed in Coshocton County, OH. The LSD bars at a given soil depth indicate the significance of bulk density among the five management practices.

View larger version (19K): [in a new window]   Fig. 4. Total soil porosity using assumed (2.65 Mg m–3) and measured particle density for moldboard plow (MP), no-till with no beef cattle manure (NT), no-till with beef cattle manure (NTm), pasture, and forest long-term management practices at three depth intervals. Different letters within the same treatment indicate significant differences between the two porosities at the 0.05 probability level.

View larger version (18K): [in a new window]   Fig. 5. Soil water contents at the liquid limit (LL), plastic limit (PL), and plasticity index (PI) for three soil depths for moldboard plow (MP), no-till with no beef cattle manure (NT), no-till with beef cattle manure (NTm), pasture, and forest long-term management practices at the Northern Appalachian Experimental Watershed in Coshocton County, OH. The LSD bars at a given soil depth indicate the significance of LL, PL, and PI among the five management practices.

View larger version (22K): [in a new window]   Fig. 6. Liquid limit, plastic limit, and plasticity index as a function of soil organic carbon (SOC) concentration for the (A) 0- to-10-cm and (B) 10- to-20-cm soil depths across five long-term management practices at the Northern Appalachian Experimental Watershed in Coshocton County, OH. The r2 were all significant at the 0.001 probability level.