Course CU07821 Rural Water Management

Course CU04144Waterbeheersing

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CU03287/6997Fluid dynamics

CU07821 Rural Water Management

CU04144Waterbeheersing

CU04778 Urban Water Management

CU03147Land and Water

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Course Rural Water Management

Organisation of the course• CT and AET together.• Each week 1 class theory (Massink)• Each week 1 class course assignment, including

GIS and Sobek in groups• Theory in moodle.hz.nl• Key course: …. Given in class• Same material (powerpoints, ..) for Dutch and

English students. So sometimes also some dutch words. Some documents Dutch and English.

• Assignments in moodle (obligatory)

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Course assignment

Prepare a “peilbesluit” (water level agreement) for the Jacobapolder at Noord Beveland

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Course Rural Water Management

Marks• Final exam (>55)• Course assignment Jacobapolder (>55)

Assignments moodle included• No mid exam

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2

Saturated and unsaturated zoneVerzadigde en onverzadigde zone

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Groundwater – Surface water

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Example Hydrological cycleNo Seepage

No Paving

evapotranspiration

Transpiration275 mm

Evaporation75 mm

350 mm

Atmosphere

Precipitation800 mm

Ground level

Surfacerunoff25 mm 250 mm

425 mm

Sea

700 mm

275 mm

Open surface water system

Soil Moisture orUnsaturated zone

crops

Capillary rise50 mm

Absorption by roots

Water table orGroundwater level

Percolation orrecharge475 mm

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Example Hydrological cycle Californiaevapotranspiration

Evaporation Transpirationcrops

Precipitation

Surface runoff150 mm

irrigationsupplychannel

Absorption Moisture

Water table orGroundwater levelCapillary rise Percolation /

Recharge Groundwater flow to surface water (400 mm) to sea (550 mm), surface runoff included

Lemon orchard2

How to manage (control) a water system?

Which parts of the water system are adjustable by people?

Why manage (control) a water system?

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• Preventing flooding (overstroming)• Preventing drying out (droogte)• Preventing salination (verzilting)• Optimal groundwater level for agriculture

and natureManaging the water system has a relationwith the use (function) of the land..

Why manage (control) a water system?

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• Evaporation; ground surface and vegetation• Transpiration; type and density• Surface runoff; paving, slope• Discharge to sea; storage and pumps• Recharge groundwater; ground surface• Discharge to surface water; drainage, storage

Which parts of the water system are adjustable by people?

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• Groundwater-drainage, trenches, ditches

• Surface water-level (weirs) (stuwen)-storage, dimensions (surface)-culverts (duikers)-pumping station (gemalen)

• Policy, legislation (wetgeving)

How to manage (control) a water system?

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Water in the polder

• This course about water systems in the rural area• Water system (groundwater and surface water)

optimized for agriculture and nature.• Maximum production farmer• Water quality is a bit ignored, more focus on

quantity• Variation in time, precipitation and evaporation

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Theory covered in this course

• Policy (Waternood, GGOR, HELP)• Precipitation and evaporation (Neerslag)• Groundwater flow and storage

(saturated and unsaturated zone)• Drainage• Weirs, open channel flow (stuwen)• Pumping stations (gemalen)• Culvert (duiker)• Maintenance (beheer en onderhoud)4

Exercise 1 Simple Peilgebied

• Peilgebied is an area with the same water levels surface water (when it is not raining).

• Info on moodle, assignment on moodle• Groups• Report directly in moodle.

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