The Nature and Properties of Soils

Buckman, Harry Oliver; BRADY, NYLE C.

doi:10.1097/00010694-196009000-00018

Cited by 206 publications

(255 citation statements)

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“…To quantify soil moisture at each of the 116 sampling sites, seven subsamples (25 mm · 150 mm) soil cores were taken. The percent moisture content of each of the subsample cores was analyzed using the gravimetric moisture method (Buckman and Brady, 1971) and an average percentage soil moisture was reported for each of the 116 sampling sites.…”

Section: Research Was Conducted Inmentioning

confidence: 99%

Improving Map Accuracy of Soil Variables Using Soil Electrical Conductivity as a Covariate

Tarr¹,

Moore

Bullock

et al. 2005

Precision Agric

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Section: Research Was Conducted Inmentioning

confidence: 99%

Improving Map Accuracy of Soil Variables Using Soil Electrical Conductivity as a Covariate

Tarr¹,

Moore

Bullock

et al. 2005

Precision Agric

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“…Loss of SOM can alter many important aspects of soil quality. Soil moisture holding capacity, soil density and aeration, and soil nutrient availability and conservation are among the essential properties controlled by SOM (Buckman and Brady, 1960). …”

Section: Perennial Grasses and The Crpmentioning

confidence: 99%

Evaluating environmental consequences of producing herbaceous crops for bioenergy

McLaughlin

Walsh

1998

Biomass and Bioenergy

358

213

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The environmental costs and benefits of producing bioenergy crops can be measured both in terms of the relative effects on soil, water, and wildlife habitat quality of replacing alternate cropping systems with the designated bioenergy system, and in terms of the quality and amount of energy that is produced per unit of energy expended. While many forms of herbaceous and woody energy crops will likely contribute to future biofuels systems, The Department of Energy's Biofuels Feedstock Development Program ( B F D P ) , has chosen to focus its primary herbaceous crops research emphasis on a perennial grass species, switchgrass (Panicum virsatum) , as a bioenergy candidate. This choice was based on its high yields, high nutrient use efficiency, and wide geographic distribution, and also on its positive environmental attributes. The latter include its positive effects on soil quality and stability, its cover value for wildlife, and the lower inputs of energy, water, and agrochemicals required per unit of energy produced. A comparison of the energy budgets for corn, which is the primary current source of bioethanol, and switchgrass reveals that the efficiency of energy production for a perennial grass system can exceed that for an energy intensive annual row crop by as much as 15 times. In additions reductions in CO, emissions, tied to the energetic efficiency of producing transportation fuels and replacing non-renewable petrochemical fuels, are very efficient with grasses. Calculated carbon sequestration rates may exceed those of annual crops by as much as [20][21][22][23][24][25][26][27][28][29][30] times, due in part to carbon storage in the soil. These differences have major implications for both the rate and efficiency with which fossil energy sources can be replaced with cleaner burning biofuels. Current research is emphasizing quantification of changes in soil nutrients and soil organic matter to provide understanding of the long term changes in soil quality associated with annual removal of high yields of herbaceous energy crops.

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“…The organic matter content of these floodplain soils varied from <1% on the heavily washed levees of OWTl to about 50% for the wet organic soils along OET5. Forest soils generally range from 1 to 15% organic matter with the highest organic contents in poorly drained soils (Buckman & Brady, 1969). High soil organic matter content probably results from decreased rates of decay in wet, oxygen-poor soils coupled with large litter inputs.…”

Section: Detritus Standing Cropmentioning

confidence: 99%

Input, movement and exchange of organic matter within a subtropical coastal black water river‐flood plain system

Cuffney

1988

Freshwater Biology

126

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SUMMARY. 1. Inputs, movements and exchanges of particulate organic matter were measured on two contrasting floodplains of the Ogeechee River, Georgia, U.S.A. A model, which incorporated measurements of standing crop, respiration, litterfall, inundation, and litter processing rates, was used to estimate annual exchanges of organic matter between the river and floodplains.2. Annual litterfall was higher on the East floodplain than on the lower elevation West floodplain (902 v. 784 g ash-free-dry-mass [AFDM] m-2).3. Experiments with tagged leaves and sticks demonstrated that litter was readily displaced during floods. The distance and direction of displacement varied within and between floodplains but tended to be higher closer to the river and was generally parallel to the river. 4. The model indicated that both floodplains lost organic matter to the river. The lower elevation floodplain (Hast) lost more organic matter to the river (208g AFDM m~^ year"^) than did the higher elevation (West) floodplain (79g AFDM m~^ year

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The Nature and Properties of Soils

Cited by 206 publications

References 0 publications

Improving Map Accuracy of Soil Variables Using Soil Electrical Conductivity as a Covariate

Improving Map Accuracy of Soil Variables Using Soil Electrical Conductivity as a Covariate

Evaluating environmental consequences of producing herbaceous crops for bioenergy

Input, movement and exchange of organic matter within a subtropical coastal black water river‐flood plain system

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