World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
41
Citations
6994
World Ranking
1058
National Ranking
318

Overview

Clarence Alan Rotz is a researcher affiliated with the Agricultural Research Service in the United States. Their research primarily focuses on environmental science and agricultural and biological sciences, with a significant contribution to several subfields including ecology, global and planetary change, environmental chemistry, soil science, and agronomy and crop science.

The scientist's main research topics cover agriculture sustainability and environmental impact, soil and water nutrient dynamics, ruminant nutrition and digestive physiology, soil carbon and nitrogen dynamics, environmental impact and sustainability, odor and emission control technologies, and anaerobic digestion and biogas production.

Their recent publications demonstrate a consistent focus on environmental assessments related to dairy and beef production systems. Notable papers include:

  • Regional environmental assessment of dairy farms, 2020, Journal of Dairy Science
  • Beef Production in the Southwestern United States: Strategies Toward Sustainability, 2020, Frontiers in Sustainable Food Systems
  • Current state of enteric methane and the carbon footprint of beef and dairy cattle in the United States, 2021, Animal Frontiers
  • A comprehensive environmental assessment of beef production and consumption in the United States, 2023, Journal of Cleaner Production
  • An environmental assessment of grass-based dairy production in the northeastern United States, 2020, Agricultural Systems

Collaborations have been a notable aspect of their career, frequently co-authoring with several researchers including Sheri Spiegal, Peter J. A. Kleinman, Greg Thoma, Craig A Gifford, and April B. Leytem.

The scientist has published extensively in several key academic journals, especially the Journal of Dairy Science and Agricultural Systems, which represent the majority of their work. Other frequent publication venues include the Journal of Environmental Quality, Transactions of the ASABE, and SSRN Electronic Journal.

Best Publications

  • Management to reduce nitrogen losses in animal production.

    C. A. Rotz

  • Technical options for the mitigation of direct methane and nitrous oxide emissions from livestock: a review

    P.J. Gerber;A.N. Hristov;B.L. Henderson;H.P.S. Makkar

  • The carbon footprint of dairy production systems through partial life cycle assessment

    C.A. Rotz;F. Montes;D.S. Chianese

  • Changes in Forage Quality During Harvest and Storage

    C. Alan Rotz;Richard E. Muck

  • Estimating Forage Mass with a Commercial Capacitance Meter, Rising Plate Meter, and Pasture Ruler

    Matt A. Sanderson;C. Alan Rotz;Stanley W. Fultz;Edward B. Rayburn

  • Nitrogen use efficiency: A potential performance indicator and policy tool for dairy farms

    J.M. Powell;C.J.P. Gourley;C.A. Rotz;D.M. Weaver

  • Whole-farm perspectives of nutrient flows in grassland agriculture

    C. A. Rotz;F. Taube;M. P. Russelle;J. Oenema

  • Automatic milking systems, farm size, and milk production.

    C.A. Rotz;C.U. Coiner;K.J. Soder

  • Feeding strategy, nitrogen cycling, and profitability of dairy farms.

    C.A. Rotz;L.D. Satter;D.R. Mertens;R.E. Muck

  • Carbon footprint and ammonia emissions of California beef production systems

    K. R. Stackhouse-Lawson;C. A. Rotz;J. W. Oltjen;F. M. Mitloehner

  • A dairy herd model for use in whole farm simulations.

    C.A. Rotz;D.R. Mertens;D.R. Buckmaster;M.S. Allen

  • Losses and Quality Changes During Alfalfa Hay Harvest and Storage

    Clarence Alan Rotz;S. M. Abrams

  • Emission of volatile organic compounds from silage: Compounds, sources, and implications

    Sasha D. Hafner;Cody Howard;Richard E. Muck;Roberta B. Franco

  • The challenges - and some solutions - to process-based modelling of grazed agricultural systems

    V.O. Snow;C.A. Rotz;A.D. Moore;R. Martin-Clouaire

  • A beef herd model for simulating feed intake, animal performance, and manure excretion in farm systems

    C. A. Rotz;D. R. Buckmaster;J. W. Comerford

  • A case study of the potential environmental impacts of different dairy production systems in Georgia

    Jeff B. Belflower;John K. Bernard;David K. Gattie;Dennis W. Hancock

  • WHOLE-FARM GREENHOUSE GAS EMISSIONS: A REVIEW WITH APPLICATION TO A PENNSYLVANIA DAIRY FARM

    Dawn Sedorovich Chianese;Clarence Alan Rotz;Thomas Lehman Richard

  • Production and feeding strategies for phosphorus management on dairy farms.

    C.A. Rotz;A.N. Sharpley;L.D. Satter;W.J. Gburek

  • Measures of Nitrogen Use Efficiency and Nitrogen Loss from Dairy Production Systems

    J. M. Powell;C. A. Rotz

  • A Model of Alfalfa Hay Storage

    D. R. Buckmaster;C. A. Rotz;D. R. Martens

  • Simulation of Methane Emissions from Dairy Farms to Assess Greenhouse Gas Reduction Strategies

    D. S. Chianese;C. A. Rotz;T. L. Richard

  • Climate change effects on livestock in the Northeast US and strategies for adaptation

    A. N. Hristov;A. T. Degaetano;C. A. Rotz;E. Hoberg

  • Simulation of Carbon Dioxide Emissions from Dairy Farms to Assess Greenhouse Gas Reduction Strategies

    D. S. Chianese;Clarence Alan Rotz;Thomas Lehman Richard

  • Cradle-to-farm gate environmental footprints of beef cattle production in Kansas, Oklahoma, and Texas.

    C. A. Rotz;S. Asem-Hiablie;J. Dillon;H. Bonifacio

  • Value of alfalfa losses on dairy farms

    D. R. Buckmaster;C. A. Rotz;J. R. Black

  • A Comprehensive Model of Forage Changes in the Silo

    D. R. Buckmaster;Clarence Alan Rotz;R. E. Muck

  • DAFOSYM: A Model of the Dairy Forage System

    C. A. Rotz;J. R. Black;D. R. Mertens;D. R. Buckmaster

Frequent Co-Authors

Tom L. Richard
Tom L. Richard Pennsylvania State University
Frank M. Mitloehner
Frank M. Mitloehner University of California, Davis
Peter J. A. Kleinman
Peter J. A. Kleinman Agricultural Research Service
Michael S. Allen
Michael S. Allen Michigan State University
J. M. Powell
J. M. Powell Agricultural Research Service
Charles W. Rice
Charles W. Rice Kansas State University
Friedhelm Taube
Friedhelm Taube Kiel University
Richard T. Conant
Richard T. Conant Colorado State University
James W. Oltjen
James W. Oltjen University of California, Davis
David R. Mertens
David R. Mertens Agricultural Research Service

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