Course code VidZ3040

Credit points 2

Soil and Water Conservation II

Total Hours in Course80

Independent study hours80

Date of course confirmation17.02.2015

Responsible UnitDepartment of Environmental Engineering and Water Management

Course developer

author

Uldis Kļaviņš

Mg. sc. ing.

Course abstract

Acquired theoretical knowledge students have to use in practice, they have to prepare detailed project on drainage of 40 ha of agricultural land area. Students acquire deeper knowledge in current regulations, directives and regulations related to issue.

Learning outcomes and their assessment

• Knowledge - specialised knowledge of theoretical and practical farmland reclamation methods. Knowledge of application specific drainage methods in specific environmental conditions.
• Skills – comprehensive skills of reclamation network calculations and project design for detailed, delimitation and drainage system. Skills to choose and to apply optimal transport infrastructure and reclamation measures for agricultural usage of farmland.
• Competence – to find optimal soil drainage measures for specific production technology depending on environmental conditions. Competence to expertise design projects and evaluate quality of building process according to national legislation.

Course Content(Calendar)

1.Characterization of the object, location, the nearest roads, use of designated areas, 5h.
2.Description of the natural conditions of the object, terrain, soil, climatic conditions, existing land uses, 5h.
3.Soil moisture regime, necessary drainage measures, 5h.
4.Main watercourse, characteristics of the existing drainage network and the need for reconstruction, 5h.
5.Selection of designed melioration techniques and schemes;
6.Leading network design, placement in the plan, 5h.
7.Compilation of longitudinal profiles of ditches, 5h.
8.Hydrological and hydraulic calculations of the main ditch, selection of cross – section parameters, selection of reinforcements, 5h.
9.Design of contour ditches in the plan, compilation of longitudinal profiles of ditches, ditch parameters, 5h.
10.Design of drainage ditches in the plan, compilation of longitudinal profiles of ditches, ditch parameters, 5h.
11.Covered drainage systems, drainage design, depths, determining distances, calculations, 5h.
12.Hydrotechnical and transport constructions, design of culverts, footbridges, parameter selection, calculations, 5h.
13.Surface runoff regulation measures, evaluation of drainage possibilities of depressions, 5h.
14.Removal of vegetation, stumps, stones, initial tillage, 5h.
15.Solution of environmental protection issues in the object, 5h.
16.Summarization of the scope of construction works, 5h.

Part time extramural studies: All topics specified for full time studies are accomplished, but the number of contact hours is one half of the number specified in the calendar.

Requirements for awarding credit points

The student independently, outside of class, develops the course work in accordance with the task and its requirements. The explanatory text and graphic material must be designed in accordance with the requirements of the methodological instructions for the design of student works. When defending the developed course for obtaining credit points, a dialogue is formed between the student and the teacher, in which the student explains, justifies and defends the drainage network planning, calculations and graphic solutions.

Description of the organization and tasks of students’ independent work

The student must independently, based on the knowledge of study program Soil and Water Conservation I and developed practical works, develop a course project for the drainage of agricultural lands.

Criteria for Evaluating Learning Outcomes

The evaluation mark of the study course depends on the quality of the course project developed by the student, the defense of the work and the answers given to the questions course project.

Compulsory reading

1. Kļaviņš U., Sudārs R. Meliorācija: mācību līdzeklis. Jelgava: LLU, 2010. 224 lpp.
2. Zīverts A. Pazemes ūdeņu hidroloģija. Jelgava, LLU: 2001. 81 lpp.
3. Zīverts A. Hidroloģija: ievads un hidroloģiskie aprēķini. Jelgava: LLU, 2004. 103 lpp.
4. Noteikumi par Latvijas būvnormatīvu LBN 224-05 "Meliorācijas sistēmas un hidrotehniskās būves" [tiešsaiste]: MK noteikumi Nr.631. Pieņemts 23.08.2005. Stājas spēkā 01.09.2005. [Skatīts 17.03.2015.]. Pieejams: http://likumi.lv/doc.php?id=115151

Further reading

1. Kļaviņš U. Lauku sētas nosusināšana: mācību palīglīdzeklis. Vides un būvzinātņu fakultātes studentiem. Jelgava: LLU, 2010. 90 lpp.
2. Kultūrtehnisko darbu tehnoloģiskās shēmas. Rīga: RRA "Latvijas meliorācija", 1990. 27 lpp.
3. Lauksaimniecības hidrotehniskā meliorācija. O.Sauka, P.Bušmanis, V.Labrencis u.c. Rīgā: Zvaigzne, 1987. 296 lpp.

Notes

Mandatory course for full – time students of the Bachelor’s study program “Environment and Water Management” of the Faculty of Environmental and Civil Sciences