Search Results - "Comerford, N. B."

exploratory analysis of phosphorus transformations in tropical soils using structural equation modeling by Gama-Rodrigues, A. C, Sales, M. V. S, Silva, P. S. D, Comerford, N. B, Cropper, W. P, Gama-Rodrigues, E. F

“…In the tropics, highly weathered soils with high phosphorus (P) fixation capacities predominate, reducing the P availability to plants. For this reason,…”
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Regional modelling of soil carbon at multiple depths within a subtropical watershed by Vasques, G.M., Grunwald, S., Comerford, N.B., Sickman, J.O.

“…Environmental factors that exert control over fine-scale spatial patterns of soil organic carbon (SOC) within profiles and across large regions differ by…”
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Characterization of soil organic carbon pools by acid hydrolysis by Silveira, M.L., Comerford, N.B., Reddy, K.R., Cooper, W.T., El-Rifai, H.

“…Chemically stable fractions of the soil organic carbon (SOC) contribute to the soil C sequestration and may have an important role for the global C budget…”
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Respecification of structural equation models for the P cycle in tropical soils by Sales, M. V. S, Gama-Rodrigues, A. C, Comerford, N. B, Cropper, W. P, Gama-Rodrigues, E. F, Oliveira, P. H. G

“…Respecification of structural models allows evaluating new hypothesis and enhances understanding of how changes in one pool can affect the other pools in the…”
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Development of an environmental virtual field laboratory by Ramasundaram, V., Grunwald, S., Mangeot, A., Comerford, N.B., Bliss, C.M.

“…Laboratory exercises, field observations and field trips are a fundamental part of many earth science and environmental science courses. Field observations and…”
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Aggregation and Aggregate Carbon in a Forested Southeastern Coastal Plain Spodosol by Sarkhot, D.V, Comerford, N.B, Jokela, E.J, Reeves, J.B. III, Harris, W.G

“…Physical protection of C by aggregates and their response to forest management are important components of soil C management. This study was conducted to…”
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Surface soil carbon size-density fractions altered by loblolly pine families and forest management intensity for a Spodosol in the southeastern US by Sarkhot, D. V, Jokela, E. J, Comerford, N. B

“…The effects of genotypic differences on soil organic carbon (SOC) cycling and their interactions with forest management systems are poorly understood. This…”
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Assessing methods for developing phosphorus desorption isotherms from soils using anion exchange membranes by Sato, S., Comerford, N.B.

“…Developing desorption isotherms for inorganic phosphorus (P) is a time-consuming and non-standardized procedure. Anion exchange membranes (AEMs) have been…”
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Loblolly and slash pine control organic carbon in soil aggregates and carbon mineralization by Azuaje, E.I., Comerford, N.B., Harris, W.G., Reeves, J.B., Grunwald, S.

“…► Soil aggregates do not protect soil organic carbon in sandy soil. ► Loblolly pine soil accumulated more. ► Total/aggregate carbon than slash pine soil. ►…”
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Effects of forest management intensity on carbon and nitrogen content in different soil size fractions of a North Florida Spodosol by Sarkhot, D. V, Comerford, N. B, Jokela, E. J, Reeves, J. B. III

“…Pine plantations of the southeastern USA are regional carbon (C) sinks. In spite of large increases in woody biomass due to advanced growing systems, studies…”
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Influence of oxalate and soil organic matter on sorption and desorption of phosphate onto a spodic horizon by Bhatti, J.S. (Canadian Forest Service, Edmonton, Canada.), Comerford, N.B, Johnston, C.T

“…Phosphate (PO4) availability limits the productivity of pine plantations growing on Spodosols of the southeastern USA. Oxalate has been shown to interact with…”
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Phosphorus sorption, desorption and resorption by soils of the Brazilian Cerrado supporting eucalypt by Barros, Nairam F., Filho, Comerford, N.B., Barros, Nairam F.

“…Oxisols of the Brazilian Cerrado are highly weathered phosphorus deficient soils, on which eucalypt is increasingly being grown as a source of carbon and…”
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non-recoverable phosphorus following sorption onto a Brazilian Ultisol by Sato, Shinjiro, Comerford, N. B

“…Phosphorus (P) immobilization in soil involves geochemical (e.g., sorption, precipitation, and diffusion) and microbiological (microbial uptake) processes…”
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Phosphorus form and bioavailability in the pine rotation following fertilization: P fertilization influences P form and potential bioavailability to pine in the subsequent rotation by Comerford, N.B, McLeod, Mary, Skinner, Malcolm

“…Soils in some parts of the world are known to be severely phosphorus (P) deficient. As little as 20 kg P ha −1 have produced large growth responses in forest…”
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Regional hybrid geospatial modeling of soil nitrate–nitrogen in the Santa Fe River Watershed by Lamsal, S., Grunwald, S., Bruland, G.L., Bliss, C.M., Comerford, N.B.

“…Typically, regional assessment of the spatial variability and distribution of environmental properties are constrained by sparse field observations that are…”
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Soil nitrate-nitrogen in forested versus non-forested ecosystems in a mixed-use watershed by Bruland, G.L., Bliss, C.M., Grunwald, S., Comerford, N.B., Graetz, D.A.

“…In tracking nutrients that enter the Gulf of Mexico via the Suwannee Basin, a disproportionate amount of the nitrate-nitrogen (NO 3-N) has been shown to…”
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Spatial relationships between nitrogen status and pitch canker disease in slash pine planted adjacent to a poultry operation by Lopez-Zamora, Isabel, Bliss, Christine, Jokela, Eric J., Comerford, N.B., Grunwald, Sabine, Barnard, E., Vasquez, G.M.

“…Pitch canker disease ( Fusarium circinatum Nirenberg & O'Donnell) causes serious shoot dieback, reduced growth and mortality in pines found in the southern and…”
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Optimizing simulated fertilizer additions using a genetic algorithm with a nutrient uptake model by Cropper, Wendell P., Comerford, N.B.

“…Intensive management of pine plantations in the southeastern coastal plain typically involves weed and pest control, and the addition of fertilizer to meet the…”
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Factors influencing production efficiency of intensively managed loblolly pine plantations in a 1- to 4-year-old chronosequence by Adegbidi, H.G., Jokela, E.J., Comerford, N.B.

“…Changes in biomass, nutrient accumulation and production efficiency (PE—total biomass increment per unit leaf area) were investigated in intensively managed…”
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Forest Harvesting Influence on Water Table Dynamics in a Florida Flatwoods Landscape by Bliss, C. M., Comerford, N. B.

“…Flatwoods are an important ecological plant community in the southeastern Coastal Plain with approximately one‐third of Florida's flatwoods in timberland. This…”
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