Laboratory Course in Soil Physics
| Numbering Code | U-AGR03 3C223 EJ83 | Year/Term | 2022 ・ First semester | |
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| Number of Credits | 2 | Course Type | Experiment | |
| Target Year | 3rd year students | Target Student | ||
| Language | Japanese | Day/Period | Wed.3・4・5 | |
| Instructor name |
NAKAMURA KIMIHITO (Graduate School of Agriculture Professor) HAMA TAKEHIDE (Graduate School of Agriculture Associate Professor) |
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| Outline and Purpose of the Course |
Lecturing the experimental methods for measuring soil physical properties including soil particle density, dry density, liquid / plasticity limit (consistency), particle size distribution, saturated hydraulic conductivity, soil water retention curve, soil thermal conductivity, simple soil chemistry (pH and electrical conductivity). They are important properties for various problems related to soil physics and hydrological environment. We aim to master the measurement technique on soil environment, especially deepen understanding of phenomena. |
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| Course Goals |
Acquiring measuring techniques for density of soil particles, dry density, three phase distribution, consistency limit, particle size distribution, saturated hydraulic conductivity, soil water retention curve, thermal conductivity, infiltration capacity, soil pH and electrical conductivity. Learning techniques to write reports of experiments. |
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| Schedule and Contents |
For the following subjects, we plan to conduct one to three weeks of experiment per subject. 1. Orientation (explanation of laboratory usage, notes, report writing method, etc.) 2.-3. Three-phase distribution of field soils (sampling of soil, soil water content, dry density, soil particle density, porosity) 4. Consistency limit (plastic limit, liquid limit, plasticity index) 5.-6. Particle size distribution curve (particle size analysis, uniformity coefficient, curvature coefficient, classification of soil) 7.-9. Soil water retention curve (relationship between soil water potential and water content, soil water retention) 10.-11. Saturated hydraulic conductivity, Infiltration capacity (saturated hydraulic conductivity, Darcy's law, permeability of forest soil, infiltration formula) 12-13. Measurement technique of soil temperature and thermal conductivity (thermocouple, thermal conductivity of soil and soil water content) 14. Checking of laboratory equipment, cleaning of laboratories etc. 15. Feedback: Define the period and accept and answer questions from students. |
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| Evaluation Methods and Policy |
[Evaluation method] Active participation (10 marks) and reports for each subject (90 marks) [Evaluation criteria] The evaluation criteria and policies are in accordance with the "Evaluation Criteria and Policies" described in the Student Handbook of the Faculty of Agriculture for the relevant year. |
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| Course Requirements | None | |||
| Study outside of Class (preparation and review) | After completing the experiment for each subject, make efforts to promptly organize the data and prepare the report. When preparing the report, it is important to actively use spreadsheet software such as Excel and document creation software such as Word, to make report easy to read. Also, return to the contents of soil physics (C 126) to understand experimental results. | |||
| Textbooks | Textbooks/References |
土質試験 基本と手引き〔第2回改訂版〕, 地盤工学会, (地盤工学会), ISBN:4-88644-084-6
If necessary, handouts are distributed. |
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