ERIC Number: ED195435
Record Type: RIE
Publication Date: 1979-Feb
Reference Count: 0
Transpiration and Leaf Temperature. Physical Processes in Terrestrial and Aquatic Ecosystems, Transport Processes.
Gates, David M.
These materials were designed to be used by life science students for instruction in the application of physical theory to ecosystem operation. Most modules contain computer programs which are built around a particular application of a physical process. This report introduces two models of the thermal energy budget of a leaf. Typical values for environment variables and leaf parameters are discussed and simple calculations are made to see how radiation, convection, and transpiration affect leaf temperature. A graphical method of analysis is used to present a more detailed energy budget model. A problem set and an accompanying computer program called TRANS permit the student to explore the consequences of the models. Algebra and some knowledge of heat transfer physics are prerequisites. (Author/CS)
Descriptors: Biology, Botany, College Science, Computer Assisted Instruction, Computer Programs, Ecology, Energy, Environmental Education, Environmental Influences, Evolution, Heat, Higher Education, Instructional Materials, Interdisciplinary Approach, Mathematical Applications, Models, Physical Sciences, Science Education, Science Instruction, Thermodynamics
Publication Type: Guides - Classroom - Learner
Education Level: N/A
Sponsor: National Science Foundation, Washington, DC.
Authoring Institution: Washington Univ., Seattle. Center for Quantitative Science in Forestry, Fisheries and Wildlife.
Note: For related documents, see SE 033 581-597. Contains marginal legibility in computer printouts and tables.