Skip to main content
Penn State College of Agricultural Science Logo
Department of Plant Science
  • Undergraduate
    • Degree Options
    • Student Resources
    • Contact Us
  • Graduate
    • Degree Options
    • Funding Opportunities
    • Student Resources
    • Contact Us
  • People
    • People
  • Research
    • Thematic Research Areas
    • Focused Research Areas
    • Publications
  • Extension & Outreach
    • Extension & Outreach
  • Access & Equity
    • Access & Equity
  • About
    • News
    • Events
    • Facilities
    • Alumni and Friends
    • Support the Department
    • Contact Us
You are here:
  1. Home
  2. Research
  3. Faculty Labs
  4. Agroecosystems Modeling Laboratory
  5. Computer Models and Tools

Computer Models and Tools

Cycles and Cycles-L

The model Cycles simulates agricultural productivity (grain, forage and biomass yield) and the water, carbon and nitrogen balance of soil-crop systems subject to different climate, soil and management constraints. The Cycles-L (L stands for landscape) version simulates these processes at a watershed-scale and includes water and nutrient transport through surface, groundwater, and streams. A description of Cycles-L can be found here: https://doi.org/10.1029/2022WR033453

Cropsyst

CropSyst is a simulation model jointly supported and developed by Claudio Stöckle (Project Leader), Roger Nelson, and Armen Kemanian.

Kemanian Agroecosystems Modeling Laboratory

  • Kemanian Agroecosystems Modeling Laboratory Overview
  • Our Mission
  • Research
    • Research Overview
    • Funded Projects
      • Funded Projects Overview
      • Smart tillage to reduce N2O emission from organic agriculture
      • Development of UAS imaging to complement genomics-assisted breeding of shrub willow for improved yield and pest resistance
      • Polycultures: Using biodiversity to increase crop productivity and resiliency while reducing the agrochemical footprint of agricultural systems
      • Enabling sustainable landscape design for continual improvement of operating bioenergy supply systems
      • CNH-L NSF: Feedbacks among land-use decision making, lake associations and water quality in lake catchments
      • US-Italy IRES-NSF: International Research Experience for Students
      • Reduced-Tillage Organic System Experiments (ROSE)
      • Center for Integrated Multi-Scale Nutrient Pollution Solutions (CNS)
      • Strengthening farm operator capacity for strategic management of cropping system adaptation to climate change
      • Northeast Woody/Warm Season Biomass Consortium (NEWBio)
      • Production and Life-Cycle Assessment of Switchgrass Across the Heterogeneous Landscape of the Northeast
      • Genetic Improvement for Yield and Establishment of Short Rotation Woody Biomass Crops on Marginal Lands
      • Mechanistic Modeling of Multispecies Pasture Growth and Management
      • Biologically Based Fertilizer Recommendations to Meet Yield Expectations and Preserve Water Quality
    • Research Topics
      • Research Topics Overview
      • Agricultural and Natural Systems Modeling
      • Watershed and landscape modeling
      • Sustainable grain, pasture, and bioenergy systems (landscape design)
      • Soil carbon and nitrogen cycling with stable isotopes and models
      • Nitrous oxide emission modeling and measurements
      • Carbon and water flux in energy crops with eddy covariance
      • Nitrogen cycling in perennial energy crops with stable isotopes
      • Plant competition
      • Water use and water use efficiency
      • Modeling plant growth and grain yield
      • Physiology of C4 grasses
  • Education
    • Education Overview
    • Models in Agricultural and Natural Systems (AGRO 597)
    • Environmental Biophysics (AEPS597)
    • Principles of Crop Management (AGRO 028)
  • Computer Models and Tools
    • Computer Models and Tools Overview
    • Cycles and Cycles-L
    • Cropsyst
  • Publications
  • People
  • Hall of Fame (Lab Alumni)
  • Contact Us
Back to Top

Department of Plant Science

  • About
  • Directory
  • Department Telephone 814-865-2571
  • Facebook
  • X (Twitter)
  • Instagram
Penn State College of Agricultural Science Logo

Privacy and Legal Statements — Accessibility — © 2025 The Pennsylvania State University

Penn State College of Agricultural Science Logo

Explore

  • Degrees & Programs
  • Admissions
  • Research
  • Extension
  • About
  • College Directory
  • Contact Us

Information for

  • Students
  • Industry
  • Alumni
  • Faculty & Staff
  • Visitors & Public
Request Info Schedule a Visit Apply
 
Penn State College of Agricultural Science Logo