A conceptual model of primary productivity in shallow streams using biomass simulation. Technical completion report
A conceptual model for primary productivity was developed for application to rooted aquatic macrophytes in streams to assist studies of eutrophication and control of water quality in supplementing outputs of dissolved oxygen (DO) models of pollution loads. This model included a first-order differential equation of biomass, with specific rates for photosynthesis, respiration, and death. A model component was developed to describe available light spatially/temporally in the weed bed, as reduced from extraterrestrial solar radiation. A DO model component included terms for photosynthetic production, plant respiration, and a benthal sink due to dead plant matter decay. The latter, a first-order exponential oxygen sink, had not been previously included in DO models.
- Research Organization:
- Pennsylvania State Univ., University Park (USA). Inst. for Research on Land and Water Resources
- OSTI ID:
- 6493558
- Report Number(s):
- PB-82-243684
- Country of Publication:
- United States
- Language:
- English
Similar Records
Macrophyte growth in shallow streams: field investigations
Diversity in Photoprotection and Energy Balancing in Terrestrial and Aquatic Phototrophs
Related Subjects
PLANTS
PRODUCTIVITY
MATHEMATICAL MODELS
STREAMS
EUTROPHICATION
WATER POLLUTION CONTROL
AQUATIC ORGANISMS
BIOMASS
DECOMPOSITION
OXYGEN
PENNSYLVANIA
PHOTOSYNTHESIS
PLANT TISSUES
RESPIRATION
SOLAR RADIATION
WATER QUALITY
BODY
CHEMICAL REACTIONS
CONTROL
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL QUALITY
FEDERAL REGION III
NONMETALS
NORTH AMERICA
PHOTOCHEMICAL REACTIONS
POLLUTION CONTROL
RADIATIONS
RENEWABLE ENERGY SOURCES
STELLAR RADIATION
SURFACE WATERS
SYNTHESIS
TISSUES
USA
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)