# positions[].organizations[].parent[].label
College of Agriculture and Life Sciences

# overview
My research focuses on carbon and nutrient dynamics in urban and rural soil, runoff and surface water. I am a PI on the Scotts Company/Texas A & M (24 plot) runoff research facility where I have examined runoff carbon and nutrient concentrations and exports from warm-season turfgrass under fertilization, wetting agent and deficit irrigation treatments. Other work has investigated extractable soil nutrients in Texas and Ghana under tillage and cropping treatments; and iron and zinc for sorghum in Mali.  The investigation of carbon and nutrients released from decomposing mammals (mainly humans) with a view to estimating post-mortem interval is a relatively new field; decomposing mammals introduce another source of carbon and nutrients into the soil environment which is under researched.  To expand soil science in forensics, soil has been used in training of human remains detection dogs in terms of odor and texture. An expansion of this forensic research is the development of use of UV-Vis-NIR spectroscopy with statistical models for trace soil evidence for a) determining percent similarity of soils and b) post-mortem interval prediction.

# keywords[]
Residual Cadaver Decomposition Island (rcdi)

# keywords[]
3002 Agriculture, Land And Farm Management

# keywords[]
30 Agricultural, Veterinary And Food Sciences

# keywords[]
30 Agricultural, Veterinary And Food Sciences

# keywords[]
3002 Agriculture, Land And Farm Management

# keywords[]
30 Agricultural, Veterinary And Food Sciences

# keywords[]
2.2 Factors Relating To The Physical Environment

# educationAndTraining[].organization.label
University of New Hampshire - (Durham, New Hampshire, United States)

# publications[].label
Impervious and pervious pavements increase soil CO2 concentrations and reduce root production of American sweetgum (Liquidambar styraciflua)

# publications[].label
Carbon, Nitrogen, and Orthophosphate Leaching from Soil under Single- and Mixed-species Landscapes

# publications[].publisher
American Society For Horticultural Science

# publications[].label
Application of soil in forensic science: residual odor and HRD dogs.

# publications[].label
Assessment and Monitoring of Soil Degradation during Land Use Change Using Multivariate Analysis

# publications[].label
Urban Soils of Texas: Relating Irrigation Sodicity to Water-Extractable Carbon and Nutrients

# publications[].label
Chemistry of growth medium and leachate from green roof systems in south-central Texas

# publications[].label
Soil chemistry dynamics of Sus scrofa carcasses with and without delayed Diptera colonization.

# publications[].label
Fluoride incidence in groundwater: a case study from Talupula, Andhra Pradesh, India.

# publications[].label
Dissolved organic carbon and dissolved organic nitrogen export from forested watersheds in Nova Scotia: Identifying controlling factors

# publications[].label
Impacts of Cropping Systems and Long-Term Tillage on Soil Microbial Population Levels and Community Composition in Dryland Agricultural Setting

# publications[].label
Nitrogen forms in runoff export from St. Augustinegrass

# publications[].label
Soil C : N ratio as a predictor of annual riverine DOC flux at local and global scales

# publications[].label
Nitrogen Runoff Losses during Warm-Season Turfgrass Sod Establishment.

# publications[].label
Effective rainfall estimates for St. Augustinegrass lawns under varying irrigation programs

# publications[].label
Dissolved organic carbon and dissolved organic nitrogen concentrations and exports upstream and downstream of the Dallas-Fort Worth metropolis, Texas, USA

# publications[].label
Salt impacts on organic carbon and nitrogen leaching from senesced vegetation

# publications[].label
THE GEOMICROBIOLOGY BEHIND ARSENIC CYCLING WITHIN RIVERBANK AQUIFERS IN BANGLADESH

# publications[].label
ANALYSIS OF MIXING BETWEEN RIVER WATER AND GROUNDWATER ALONG THE BANKS OF A LARGE TIDAL RIVER RECEIVING AS-LADEN GROUNDWATER

# publications[].label
The relationship between dissolved organic carbon in stream water and soil organic carbon pools at different spatial scales

# publications[].label
Effects of chronic nitrogen amendment on dissolved organic matter and inorganic nitrogen in soil solution

# publications[].label
Modelling DOC export from watersheds in Scotland using neural networks

# publications[].label
Irrigation Water Chemistry: Impact on Microbial Community Composition and Biogeochemical Leaching under Perennial Ryegrass (Lolium perenne [L])

# publications[].label
A geographical approach to tracking Escherichia coli and other water quality constituents in a Texas coastal plains watershed.

# publications[].label
Shea (Vitellaria paradoxa) tree and soil parent material effects on soil properties and intercropped sorghum grain-Zn in southern Mali, West Africa

# publications[].label
The fate of arsenic in groundwater discharged to the Meghna River, Bangladesh

# publications[].label
DOC and DON Release and Reactive Soil Pools in Urban and Remnant Soils

# publications[].label
Fluoride and Heavy Metal Accumulation by Vegetation in the Fluoride Affected Area of Talupula, Anantapur District, Andhra Pradesh

# publications[].label
BIOGEOCHEMISTRY OF ARSENIC CYCLING IN A TIDALLY INFLUENCED RIVER-BANK AQUIFER IN BANGLADESH

# publications[].label
Long-term trends in stream nitrate concentrations and losses across watersheds undergoing recovery from acidification in the Czech Republic

# publications[].label
Short-term response on the quantity and quality of rhizo-deposited carbon from Norway spruce exposed to low and high N inputs

# publications[].label
An evaluation of soil chemistry in human cadaver decomposition islands: Potential for estimating postmortem interval (PMI).

# publications[].label
Linking foliar chemistry to forest floor solid and solution phase organic C and N in Picea abies [L.] karst stands in northern Bohemia

# publications[].label
Chemistry of Urban, Suburban, and Rural Surface Waters

# publications[].label
Effect of urbanization on surface water chemistry in south-central Texas

# publications[].label
Deficit Irrigation and Fertility Effects on NO3-N Exports from St. Augustinegrass.

# publications[].label
Nutrient loading impacts on culturable E.coli and other heterotrophic bacteria fate in simulated stream mesocosms.

# publications[].label
Extractable DOC and DON from a dry-land long-term rotation and cropping system in Texas, USA

# publications[].label
Dissolved organic carbon and nitrogen in urban and rural watersheds of south-central Texas: land use and land management influences

# publications[].label
The Effects of Soil Texture on the Ability of Human Remains Detection Dogs to Detect Buried Human Remains.

# publications[].label
Irrigation Salinity Effects on Tifway Bermudagrass Growth and Nitrogen Uptake

# publications[].label
Historical ETo-based irrigation scheduling for St. Augustinegrass Lawns in the South-Central United States

# publications[].label
Mapping the lateral extent of human cadaver decomposition with soil chemistry.

# publications[].label
Biodegradable dissolved organic carbon in urban and remnant soils in south-central Texas, USA

# publications[].label
Long-term sodium and chloride surface water exports from the Dallas/Fort Worth region.

# publications[].label
Soil microbial community, C, N, and P responses to long-term tillage and crop rotation

# publications[].label
Assessment of temporal and spatial water quality in international Gomishan Lagoon, Iran, using multivariate analysis.

# publications[].label
Elucidating the Effects of Land Cover and Usage on Background Escherichia coli Sources in Edge-of-Field Runoff

# publications[].label
Design and construction of an urban runoff research facility.

# publications[].label
Spatial and temporal variation of dissolved organic carbon export from gauged and ungauged watersheds of Dee Valley, Scotland: Effect of land cover and C : N

# publications[].label
Evaluation of multiple water quality indices for drinking and irrigation purposes for the Karoon river, Iran.

# publications[].label
Services in Natural and Human Dominated Ecosystems

# publications[].label
Escherichia coli Regrowth in Disinfected Sewage Effluent: Effect of DOC and Nutrients on Regrowth in Laboratory Incubations and Urban Streams

# publications[].label
Landscape Coefficients for Single- and Mixed-species Landscapes

# publications[].publisher
American Society For Horticultural Science

# publications[].label
A comparison of methods to determine the biodegradable dissolved organic carbon from different terrestrial sources

# publications[].label
Estimating postmortem interval for human cadavers in a sub-tropical climate using UV-Vis-near-infrared Spectroscopy.

# publications[].label
Spectral analysis of coniferous foliage and possible links to soil chemistry: are spectral chlorophyll indices related to forest floor dissolved organic C and N?

# researcherOn[].label
104B State Water Resources Research Institute Program

# researcherOn[].awardedBy.label
United States Department of the Interior - (Washington D.C., District of Columbia, United States)

# researcherOn[].label
Determining watershed sources of DOC, DIN, DON and PO4-P to urban and rural surface waters

# researcherOn[].awardedBy.label
National Institute of Food and Agriculture - (Washington D.C., District of Columbia, United States)

# researcherOn[].label
Innovative Sorghum-based Production Systems with Biological Nitrification Inhibition Property to Enhance Sustainability of Agroecosystems

# researcherOn[].awardedBy.label
United States Department of Agriculture - (Washington D.C., District of Columbia, United States)

# researcherOn[].awardedBy.preferredLabel
USDA-National Institute of Food And Agriculture

# streetAddress
Texas A&M University; Soil & Crop Science; 2474 TAMU

# organizations[]
College of Agriculture and Life Sciences

# schools[]
College of Agriculture and Life Sciences

# inTheNews[].label
Texas A&M undergraduate initiates urban farm on campus

# etdChairOf[].label
Lazar, Katelyn Renee (2016-08). Effect of Sodium Exposure on Dissolved Organic Carbon and its Biodegradability in Urban Soils. Master's Thesis.

# etdChairOf[].label
Hein, Kirstin Helena (2015-08). Novel Sources of Nutrients in Urban Watersheds. Master's Thesis.

# etdChairOf[].label
Young, Kirby Lynn (2018-05). Biogeochemistry of Urban, Suburban, and Rural Ponds and Lakes in South-Central Texas. Master's Thesis.

# etdChairOf[].label
Sturm-Flores, Linda (2012-07). Specialty Coffee in Costa Rica: Effect of Environmental Factors and Management Options on Soil Chemistry and Microbial Composition. Master's Thesis.

# etdChairOf[].label
Alexander, Michael Benjamin (2014-12). The Forensic Application of Soil: Clandestine Graves and Human Remains Detection Dogs. Doctoral Dissertation.

# etdChairOf[].label
Pitts, Lauren Kyla R. (2015-08). Strategic Soil Management for Rainfed Agriculture in West Africa. Master's Thesis.

# etdChairOf[].label
Davies, Benjamin (2014-08). The Effects of Tillage, Cropping and Fertilization on Extractable Soil Nutrients in Four Agro-Ecosystems in Ghana, West Africa. Master's Thesis.

# etdChairOf[].label
Beauchamp, Brianna Rochelle (2016-08). Water Extractable DOC, DON and Nutrients in Urban Soils: Effects of Sodium Source and Exposure Interval. Master's Thesis.

# etdChairOf[].label
Holgate, Leon Carl (2011-08). Irrigation Water Source: Effect on Soil Nutrient Dynamics and Microbial Community Composition. Master's Thesis.