A5018498879- Hydrology and Watershed Management Studies
- Soil erosion and sediment transport
- Soil and Water Nutrient Dynamics
- Contemporary Literature and Criticism
- Soil Carbon and Nitrogen Dynamics
- Cinema and Media Studies
- Postcolonial and Cultural Literary Studies
- Hydrocarbon exploration and reservoir analysis
- Hydrology and Sediment Transport Processes
- Short Stories in Global Literature
- Art, Politics, and Modernism
- Poetry Analysis and Criticism
- Humor Studies and Applications
- Modernist Literature and Criticism
- Seventeenth-Century Political and Philosophical Thought
- Geological formations and processes
- Geological Studies and Exploration
- Geochemistry and Geologic Mapping
- American and British Literature Analysis
- American Literature and Culture
- Soil Geostatistics and Mapping
- Narrative Theory and Analysis
- Political Economy and Marxism
- Reservoir Engineering and Simulation Methods
- Bioenergy crop production and management
National Laboratory for Agriculture and the Environment
2012-2024
Covenant University
2024
University of Birmingham
2017-2024
Iowa State University
2020-2024
Manchester Metropolitan University
2011-2022
University of Warwick
2013-2022
Agricultural Research Service
2003-2020
United States Department of Agriculture
2014-2020
Minneapolis Institute of Arts
2020
Wayne Community College
2020
Loss of biodiversity and degradation ecosystem services from agricultural lands remain important challenges in the United States despite decades spending on natural resource management. To date, conservation investment has emphasized engineering practices or vegetative strategies centered monocultural plantings nonnative plants, largely excluding native species cropland. In a catchment-scale experiment, we quantified multiple effects integrating strips prairie amid corn soybean crops, with...
The task for contemporary literature is to deal with the legacy of modernism. —Tom McCarthy (2010) A century separates us from an iconic moment aesthetic metamorphosis: 1914 witnessed appearance James Joyce's Dubliners , Gertrude Stein's Tender Buttons Mina Loy's “Parturition,” and vorticist journal Blast. It was year Dora Marsden Harriet Shaw Weaver, aided by Ezra Pound, started literary review Egoist in London Condé Nast Frank Crowninshield launched Vanity Fair New York. Arnold...
The need to reduce nutrient loads from agricultural watersheds poses a daunting challenge, considering the continental scale of water quality problems in Gulf Mexico (Turner et al. 2008), Great Lakes (Joose and Baker 2010), Chesapeake Bay (Russell 2008). Strategies address reduction have suggested that mix practices will be required across multiple landscape positions achieve goals (Iowa Nutrient Reduction Strategy Science Team 2012). Control both nitrogen phosphorus may critical mitigate...
Spatial data on soils, land use, and topography, combined with knowledge of conservation effectiveness, can be used to identify alternatives reduce nutrient discharge from small (hydrologic unit code [HUC]12) watersheds. Databases comprising soil attributes, agricultural light detection ranging-derived elevation models were developed for two glaciated midwestern HUC12 watersheds: Iowa's Beaver Creek watershed has an older dissected landscape, Lime in Illinois is young less dissected....
A recent revisionary focus for the so-called new modernist studies has been relationship between high modernism and formal preoccupations of interwar novelists who followed in its wake. This essay, contributing to this ongoing work about distinctive innovations late-modernist writing, considers British women writers extended heritage regional novel while accommodating ambitions experimentalism. Although assumptions retrogressive nature fiction from 1930s 40s—including relegation stylistic...
Incorporation of dedicated herbaceous energy crops into row crop landscapes is a promising means to supply an expanding biofuel industry while benefiting soil and water quality increasing biodiversity. Despite these positive traits, remain largely unaccepted due concerns over their practicality cost implementation. This paper presents case study for Hardin County, Iowa, demonstrate how subfield decision making can be used target candidate areas conversion production. Estimates variability in...
Abstract Water runoff and sediment transport from agricultural uplands are substantial threats to water quality sustained crop production. To improve soil resources, farmers, conservationists, policy‐makers must understand how landforms, types, farming practices, rainfall interact with erosion processes. that end, the Iowa Daily Erosion Project (IDEP) was designed implemented in 2003 inventory these factors across United States. IDEP utilized Prediction (WEPP) model along radar‐derived...
Documenting the types and extent of conservation practices in a watershed is necessary to determine their water quality impacts. A practice inventory for South Fork Iowa River, 85% corn (<i>Zea mays</i> L.) soybean [<i>Glycine max</i> L. (Merr.)] rotations, showed only 7% cropland was managed using no-tillage. About 30% receives manure annually, prior corn. Surface residue following usually inadequate (<30%), indicating key management challenge. 90% fields with >34% highly erodible...
Afforestation of degraded cropland can sequester atmospheric C; however, source partitioning and turnover soil organic C (SOC) in such ecosystems are not well documented. This study assessed SOC dynamics two 35‐yr‐old, coniferous afforestation sites (i.e., a forest plantation situated northwestern Iowa on silty clay loam shelterbelt eastern Nebraska silt soil) the adjacent agricultural fields. Soil samples were collected at both to determine total N concentrations stable isotope ratios (δ 13...
Abstract Difficulties in accessing high-quality data on trace gas fluxes and performance of bioenergy/bioproduct feedstocks limit the ability researchers others to address environmental impacts agriculture potential produce feedstocks. To those needs, GRACEnet (Greenhouse Reduction through Agricultural Carbon Enhancement network) REAP (Renewable Energy Assessment Project) research programs were initiated by USDA Research Service (ARS). A major product these is creation a database with...
A watershed's riparian corridor presents opportunities to stabilize streambanks, intercept runoff, and influence shallow groundwater with buffers. This paper a system classify these apply them toward management planning in hydrologic unit code 12 watersheds. In two headwater watersheds from each of three landform regions found Iowa Illinois, high-resolution (3-m grid) digital elevation models were analyzed identify spatial distributions surface runoff contributions zones water tables (SWTs)...
Conservation planning information is important for identifying options watershed water quality improvement and can be developed use at field, farm, scales. Translation across scales a key issue impeding progress because goals must connected with implementation of farm- field-level conservation practices to demonstrate success. This particularly true when examining alternatives "trap treat" implemented agricultural-field edges control (or influence) flows through fields, landscapes, riparian...
Soil erosion and nutrient loss from surface runoff subsurface leaching are critical problems for cultivated land. Conservation initiatives show a persistent need field-scale cropland vulnerability assessments to inform farm management options prioritize efforts at watershed or regional scales. The Vulnerability Index (SVI) was developed by USDA9s Natural Resources Service (NRCS) assess inherent of using readily available soil topographic inputs: hydrologic group, slope, erodibility K-factor,...
We have developed an add-on tool for use with the Agricultural Conservation Planning Framework (ACPF) that features a multistate financial analysis and field-scale nitrogen (N) reduction when analyzing different ACPF conservation scenarios. Financial expected N loss data are used to calculate total long-term cost effectiveness of various plans. Unique Nutrient Reduction Tool is ability identify individual treatment areas each practice evaluated, allowing users create combinatorial planning...