A Laboratory Exercise Relating Soil Energy Budgets to Soil Temperature

Autor/inn/en	Koenig, Richard T.; Cerny-Koenig, Teresa; Kotuby-Amacher, Janice; Grossl, Paul R.
Titel	A Laboratory Exercise Relating Soil Energy Budgets to Soil Temperature
Quelle	In: Journal of Natural Resources and Life Sciences Education, 37 (2008), S.59-62 (4 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1059-9053
Schlagwörter	Leitfaden; Unterricht; Lehrer; Horticulture; Agronomy; Energy; Hands on Science; Scientific Concepts; Majors (Students); Soil Science; Science Laboratories; Climate; Lecture Method; Budgets; Plants (Botany); College Science + Suchen Sie Ihr Suchwort? Lesson concept; Instruction; Unterrichtsentwurf; Unterrichtsprozess; Teacher; Teachers; Lehrerin; Lehrende; Gartenbau; Agarwissenschaft; Energie; Bodenkunde; Klima; Finanzhaushalt; Pflanze
Abstract	Enrollment by students in degree programs other than traditional horticulture, agronomy, and soil science has increased in basic plant and soil science courses. In order to broaden the appeal of these courses to students from majors other than agriculture, we developed a hands-on laboratory exercise relating the basic concepts of a soil energy budget to soil temperatures measured on college campuses. Concepts related to soil energy and temperature were presented in lecture and discussed at the beginning of the laboratory session. Students were then given inexpensive stem and dial gauge thermometers and instructed to take measurements at two locations on campus where they predicted soil temperature would be high, and two where they predicted soil temperature would be low. Soil temperature differences between the high and low measurements commonly ranged from 8 to 10 degrees C. Following in-field data collection, an open discussion of results helped to further emphasize the relative ease with which basic soil energy budget concepts could be used to predict environments where soil temperature would be high or low. Students were also encouraged to describe how they could use more generalized knowledge of energy relations and budgets to predict relative temperatures in their field of study. The exercise requires little preparation time and, once thermometers are purchased, is low cost. We believe the exercise applied and reinforced concepts presented in lecture and in introductory plant and soil science textbooks, and emphasized the application of these concepts in disciplines other than traditional agriculture. (Contains 1 figure and 1 table.) (Author).
Anmerkungen	American Society of Agronomy. 677 South Segoe Road, Madison, WI 53711. Tel: 608-273-8080; Fax: 608-273-2021; Web site: http://www.jnrlse.org/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10