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You searched for: Journal name Soil Science Society of America journal Remove constraint Journal name: Soil Science Society of America journal Subject term bulk density Remove constraint Subject term: bulk density Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. A Century of Soil Development in Spoil Derived from Loess in Iowa

Author:
George R. Hallberg; Nyle C. Wollenhaupt; Gerald A. Miller
Source:
Soil Science Society of America journal 1978 v.42 no.2 pp. 339-343
ISSN:
0361-5995
Subject:
A horizons; bulk density; buried soils; clay; color; loess; organic carbon; phosphorus; railroads; recycling; silt; soil water; soil water movement; vegetation; Iowa
Abstract:
... During the past century well-drained soils have formed in leached loess spoil materials under prairie vegetation along railroad cuts in Iowa. The spoil material was deposited on an existing Tama Variant soil which reveals the effects of 100 years of burial. In 100 years' time a 31-cm A horizon has developed in the spoil, available phosphorus recycling has been measured, and the translocation and a ...
DOI:
10.2136/sssaj1978.03615995004200020028x

2. A Classification of ca Horizons in Soils of a Desert Region, Dona Ana County, New Mexico

Author:
Leland H. Gile
Source:
Soil Science Society of America journal 1961 v.25 no.1 pp. 52-61
ISSN:
0361-5995
Subject:
bulk density; calcium carbonate; coatings; compression strength; infiltration rate; mountains; paleosolic soil types; particle size distribution; piedmont; sediments; soil surveys; New Mexico
Abstract:
... A ca horizon is defined in the Soil Survey Manual as an accumulation of calcium carbonate. Field study in Dona Ana County, New Mexico shows that ca horizons occur in soils on a variety of sediments and geomorphic surfaces. A broad fan piedmont extends from the Rio Grande Valley eastward to the igneous Organ Mountains. To the north there is a desert bolson. In soils on these surfaces and in paleoso ...
DOI:
10.2136/sssaj1961.03615995002500010024x

3. A Compaction Apparatus for the Preparation of Soil Cores of Different Bulk Densities and Thicknesses

Author:
V. C. Baligar; V. E. Nash; F. L. Shuman
Source:
Soil Science Society of America journal 1975 v.39 no.5 pp. 1002-1003
ISSN:
0361-5995
Subject:
bulk density; plant growth; soil; soil compaction
Abstract:
... The apparatus reported herein enables one to prepare soil cores with a desirable bulk density and having different thicknesses for use in soil compaction and plant growth studies. ...
DOI:
10.2136/sssaj1975.03615995003900050052x

4. A Dielectric–Water Content Relationship for Sandy Volcanic Soils in New Zealand

Author:
M. D. Tomer; B. E. Clothier; I. Vogeler; S. Green
Source:
Soil Science Society of America journal 1999 v.63 no.4 pp. 777-781
ISSN:
0361-5995
Subject:
air drying; bulk density; dielectric properties; equations; liquids; loamy sand soils; sandy loam soils; soil profiles; soil texture; soil water; soil water content; statistical models; tephra; time domain reflectometry; volcanic soils; New Zealand
Abstract:
... To measure soil water content (θ) by time domain reflectometry (TDR), one must know the relationship between the soil's dielectric constant (K ₐ) and θ. Our objective was to determine K ₐ–θ calibrations for sandy volcanic soils on the North Island of New Zealand. We collected samples from 24 horizons and 6 soil profiles. The soils were sandy loam and loamy sand textured, with bulk densities betwee ...
DOI:
10.2136/sssaj1999.634777x

5. A Freezing Technique for Sampling Skeletal, Structureless Forest Soils

Author:
H. A. Froehlich; D. W. R. Miles
Source:
Soil Science Society of America journal 1986 v.50 no.6 pp. 1640-1642
ISSN:
0361-5995
Subject:
bulk density; forest soils; freezing; liquid nitrogen; organic matter; particle size distribution; sampling
Abstract:
... A technique was developed to take large undisturbed samples in forest soils with high coarse-fragment content. Each sampling site was wetted with water, a metal pin was driven into and carefully removed from the soil, and liquid N₂ was poured into the resulting hole. A frozen sample up to 200 mm in diam and 450 mm deep could be excavated and transported frozen to the laboratory. This sampling tech ...
DOI:
10.2136/sssaj1986.03615995005000060050x

6. A Gamma-photoneutron Method for Laboratory Studies of Soil Water

Author:
J. C. Corey; R. H. Hawkins; R. F. Overman
Source:
Soil Science Society of America journal 1970 v.34 no.4 pp. 557-560
ISSN:
0361-5995
Subject:
bulk density; clay; deuterium; deuterium oxide; gamma radiation; neutrons; photons; soil texture; soil water; water content
Abstract:
... The gamma-photoneutron method is unique among nuclear methods used to study water movement in soil because the heavy water (²H₂O) content of laboratory soil columns can be measured independently of bulk density of soil, soil texture, light water (¹H₂O) content, and type of clay mineral. The method requires a radioactive source that emits gamma photons in excess of 2.23 Mev and a neutron detector. ...
DOI:
10.2136/sssaj1970.03615995003400040008x

7. A Geostatistical Analysis of Soil Properties in the Davis Pond Mississippi Freshwater Diversion

Author:
Filip Kral; Ron Corstanje; John R. White; Fabio Veronesi
Source:
Soil Science Society of America journal 2012 v.76 no.3 pp. 1107-1118
ISSN:
0361-5995
Subject:
bulk density; carbon; freshwater; geostatistics; kriging; nitrogen; organic matter; pH; phosphorus; pollution load; river deltas; rivers; sediment deposition; sediments; soil analysis; soil map; soil properties; soil water; surveys; Mississippi; Mississippi River
Abstract:
... Land loss has been a major concern in the Mississippi River Delta as the levees constructed along the river caused a severe drop in sediment and nutrient loads for the adjacent wetland areas. Several freshwater diversions along the lower reach of the Mississippi River were built to resolve this. This study represents the first spatial survey of one such diversion, Davis Pond, with the objective to ...
DOI:
10.2136/sssaj2011.0206

8. A Method for Determining Community Level Physiological Profiles of Organic Soil Horizons

Author:
Mathew J.B. Swallow; Sylvie A. Quideau
Source:
Soil Science Society of America journal 2015 v.79 no.2 pp. 536-542
ISSN:
0361-5995
Subject:
bulk density; cluster analysis; forest litter; forest soils; microbial communities; multidimensional scaling; organic horizons; organic soils; sieving
Abstract:
... Community level physiological profiles (CLPPs) have been widely used to assess microbial community diversity in soils. Refinement of techniques to determine soil CLPP eventually led to the development of the MicroResp technique. This technique avoids many of the pitfalls of earlier methods by using a whole-soil approach coupled with the convenience of microplates. However, issues related to soil p ...
DOI:
10.2136/sssaj2014.08.0318n

9. A Method for Measuring Incorporated Crop Residue and Associated Soil Properties

Author:
R. R. Allmaras; J. L. Pikul; D. E. Wilkins; J. M. Kraft
Source:
Soil Science Society of America journal 1988 v.52 no.4 pp. 1128-1133
ISSN:
0361-5995
Subject:
air drying; algorithms; bulk density; chiseling; crop residues; organic carbon; plowing; plows; soil properties; traffic
Abstract:
... Controlled placement and depth distribution of crop residues are major objectives for tillage management. Appropriate methodology has provided quality information about surface placement, but the distribution of buried crop residue has not been readily measurable. A method was developed to measure dry bulk density (ρb), incorporated coarse organic matter (COM), and organic carbon (C) concentration ...
DOI:
10.2136/sssaj1988.03615995005200040044x

10. A Model for Predicting Packing Density of Soils Using Particle-Size Distribution

Author:
S. C. Gupta; W. E. Larson
Source:
Soil Science Society of America journal 1979 v.43 no.4 pp. 758-764
ISSN:
0361-5995
Subject:
bulk density; glass; particle size; particle size distribution; prediction; soil density; soil management; soil minerals; soil profiles; soil separates; texture
Abstract:
... Many soil management decisions can be made from measured dry bulk density of the soil. These interpretations of soil behavior could be enhanced if soil particle-size analysis could be used as a predictor of soil bulk density. A random-packing model was developed utilizing soil-particle size distribution as the principal input. Other inputs were average equivalent particle and cavity radii; bulk an ...
DOI:
10.2136/sssaj1979.03615995004300040028x

11. A Non-Empirical Method for Computing Pore Radii and Soil Water Characteristics from Particle-Size Distribution

Author:
Lalit M. Arya; Joshua L. Heitman
Source:
Soil Science Society of America journal 2015 v.79 no.6 pp. 1537-1544
ISSN:
0361-5995
Subject:
bulk density; clay; empirical models; particle size distribution; porosity; prediction; sand; sandy loam soils; soil structure; soil water; uncertainty
Abstract:
... Soil water characteristics (SWC) is a common requirement in studies of soil physics and hydrology, and modeling this property is preferred because experimental measurements are error-prone, time-consuming, and costly. However, unknown empirical parameters in SWC models remain a source of uncertainty. This study proposes a formulation for computing pore radii and SWCs from routinely available parti ...
DOI:
10.2136/sssaj2015.04.0145

12. A Novel Method for Estimating Soil Precompression Stress from Uniaxial Confined Compression Tests

Author:
Mathieu Lamandé; Per Schjønning; Rodrigo Labouriau
Source:
Soil Science Society of America journal 2017 v.81 no.5 pp. 1005-1013
ISSN:
0361-5995
Subject:
bulk density; soil quality; soil sampling; soil strength; soil structure; soil types; soil water; soil water potential; strength (mechanics); traffic
Abstract:
... The concept of precompression stress is used for estimating soil strength that is relevant to field traffic. It represents the maximum stress experienced by the soil. The most recently developed fitting method to estimate precompression stress (Gompertz) is based on the assumption of an S-shaped stress–strain curve, which is not always fulfilled. A new simple numerical method was developed to esti ...
DOI:
10.2136/sssaj2016.09.0274

13. A Physically Derived Water Content/Permittivity Calibration Model for Coarse-Textured, Layered Soils

Author:
D. A. Robinson; S. B. Jones; J. M. Blonquist; S. P. Friedman
Source:
Soil Science Society of America journal 2005 v.69 no.5 pp. 1372-1378
ISSN:
0361-5995
Subject:
bulk density; empirical models; glass; hysteresis; layered soils; model validation; porous media; quartz; sand; sandy soils; soil profiles; volumetric water content; water content
Abstract:
... Many empirical formulas relating TDR-measured permittivity (K ₐ) to volumetric water content (θ) have been presented owing to the lack of a robust and accurate physically derived model describing this relationship across a range of soils. Soil-specific calibrations are often infeasible due to the time-consuming gravimetric sampling required for adequate calibration. In this work we propose a sampl ...
DOI:
10.2136/sssaj2004.0366

14. A Physicoempirical Model to Predict the Soil Moisture Characteristic from Particle-Size Distribution and Bulk Density Data

Author:
Lalit M. Arya; Jack F. Paris
Source:
Soil Science Society of America journal 1981 v.45 no.6 pp. 1023-1030
ISSN:
0361-5995
Subject:
bulk density; capillarity; equations; particle size distribution; porosity; prediction; soil water; soil water characteristic
Abstract:
... A model to predict the moisture characteristic of a soil from its particle-size distribution, bulk density, and particle density parameters is presented. The model first translates a particle-size distribution into a pore-size distribution. Then, the cumulative pore volumes corresponding to progressively increasing pore radii are divided by the sample bulk volume to give the volumetric water conte ...
DOI:
10.2136/sssaj1981.03615995004500060004x

15. A Portable Tool for Obtaining Soil Cores in Clayey or Rocky Soils

Author:
C. L. Tuttle; M. S. Golden; D. L. Sirois
Source:
Soil Science Society of America journal 1984 v.48 no.6 pp. 1453-1455
ISSN:
0361-5995
Subject:
bulk density; forests; soil; soil sampling
Abstract:
... A portable tool was designed to collect soil samples, root cores, and bulk density cores on remote forest sites. Use of the designed tool allowed soil cores to be collected repeatedly from a study plot with minimal site disturbance. Cores 7.62 cm in diameter and up to 45.0 cm deep were collected and analyzed. Up to 10 cores per hour can be obtained by a two-man crew. Over 1000 cores were collected ...
DOI:
10.2136/sssaj1984.03615995004800060050x

16. A Simple Method for Determining Soil Hydraulic Properties in the Laboratory

Author:
S. Tamari; L. Bruckler; J. Halbertsma; J. Chadoeuf
Source:
Soil Science Society of America journal 1993 v.57 no.3 pp. 642-651
ISSN:
0361-5995
Subject:
silt loam soils; soil water retention; unsaturated hydraulic conductivity; unsaturated flow; soil water content; bulk density; soil analysis; laboratory techniques
Abstract:
... Both soil water retention curve and unsaturated hydraulic conductivity data are often necessary for solving soil unsaturated flow problems. This study investigated two versions of a simple laboratory method for determining soil hydraulic properties of homogeneous and rigid soil samples. Three evaporation experiments (soil columns of 106-mm diam. and 60-mm height) were made with a silt loam soil pa ...
DOI:
10.2136/sssaj1993.03615995005700030003x

17. A Soil Bulk Density Pedotransfer Function Based on Machine Learning: A Case Study with the NCSS Soil Characterization Database

Author:
Amanda Ramcharan; Tomislav Hengl; Dylan Beaudette; Skye Wills
Source:
Soil Science Society of America journal 2017 v.81 no.6 pp. 1279-1287
ISSN:
0361-5995
Subject:
algorithms; artificial intelligence; bulk density; case studies; data collection; databases; ecoregions; ecosystems; pedotransfer functions; prediction; soil density; soil organic carbon; soil surveys; United States
Abstract:
... This paper describes a method to develop a soil bulk density pedotransfer function (PTF) using the Random Forest machine-Learning algorithm with soil and environmental data for the conterminous United States. Complete data from 45,818 horizons were extracted from the National Cooperative Soil Survey (NCSS) soil characterization database and used to calibrate and validate the PTF. Environmental dat ...
DOI:
10.2136/sssaj2016.12.0421

18. A Technique for Obtaining Undisturbed Soil Samples by Freezing in Situ

Author:
R. L. Blevins; G. M. Aubertin; N. Holowaychuk
Source:
Soil Science Society of America journal 1968 v.32 no.5 pp. 741-742
ISSN:
0361-5995
Subject:
bulk density; freezing; liquid nitrogen; roots; soil; soil blocks; soil sampling
Abstract:
... A freezing technique employing liquid nitrogen has been developed to freeze soil blocks in situ. This technique makes it possible to collect undisturbed samples from soils that are incoherent, have an abundance of roots or have a high percentage of coarse skeletal materials. The frozen blocks can be transported to the laboratory in a frozen state and eut into desired-size blocks for bulk density, ...
DOI:
10.2136/sssaj1968.03615995003200050045x

19. Accounting for Surface Cattle Slurry in Ammonia Volatilization Models: The Case of Volt’Air

Author:
L. Garcia; S. Génermont; C. Bedos; N.N. Simon; P. Garnier; B. Loubet; P. Cellier
Source:
Soil Science Society of America journal 2012 v.76 no.6 pp. 2184-2194
ISSN:
0361-5995
Subject:
ammonia; application rate; bulk density; cattle manure; data collection; drying; humidity; hydrology; models; nitrogen; slurries; soil; surface temperature; volatilization
Abstract:
... Process based models have been developed to simulate ammonia (NH₃) volatilization after surface slurry spreading, but none of them have managed to realistically represent slurry infiltration into the soil and the development of a specific slurry interface that modifies surface temperature and humidity conditions. To account for these physical effects, it is proposed to add to the model a layer of ...
DOI:
10.2136/sssaj2012.0067

20. Accumulation of Organic Matter and Soil Nitrogen Beneath A Plantation of Red Alder and Douglas-Fir

Author:
Robert F. Tarrant; Richard E. Miller
Source:
Soil Science Society of America journal 1963 v.27 no.2 pp. 231-234
ISSN:
0361-5995
Subject:
Alnus rubra; Pseudotsuga menziesii; bulk density; carbon nitrogen ratio; forest litter; forests; mineral soils; nitrogen; organic matter; rivers; Washington (state)
Abstract:
... Soil nitrogen accumulation beneath a plantation of red alder and Douglas-fir was compared with that under a pure fir segment of the same 30-year-old stand on the Wind River Experimental Forest in southwestern Washington. Beneath the mixed plantation, there were significantly greater amounts of nitrogen in the forest floor and in the upper 24 inches of the mineral soil. Organic matter content in th ...
DOI:
10.2136/sssaj1963.03615995002700020041x