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Technologies

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Les « Meskats » : système d’exploitation des eaux de ruissellement dans le Sahel tunisien [Tunisia]

Creation: 10/25/2018 4:57 p.m.
Update: 10/31/2018 10:50 a.m.
Compiler: Donia Mühlematter
Editor: –
Reviewer: Donia Mühlematter

المسقاة : تقنية المحافظة على المياه والتربة بالساحل التونسي

technologies_4143 - Tunisia

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Completeness: 69%

1. General information

2. Description of the SLM Technology

3. Classification of the SLM Technology

3.1 Main purpose(s) of the Technology

improve production
reduce, prevent, restore land degradation
conserve ecosystem

3.2 Current land use type(s) where the Technology is applied

Land use mixed within the same land unit:

Yes

Specify mixed land use (crops/ grazing/ trees):

Agro-pastoralism (incl. integrated crop-livestock)

3.3 Has land use changed due to the implementation of the Technology?

Has land use changed due to the implementation of the Technology?

No (Continue with question 3.4)

3.4 Water supply

Water supply for the land on which the Technology is applied:

mixed rainfed-irrigated

3.5 SLM group to which the Technology belongs

pastoralism and grazing land management
improved ground/ vegetation cover
water harvesting

3.6 SLM measures comprising the Technology

agronomic measures

A1: Vegetation/ soil cover

vegetative measures

V2: Grasses and perennial herbaceous plants

structural measures

S7: Water harvesting/ supply/ irrigation equipment

management measures

M3: Layout according to natural and human environment

3.7 Main types of land degradation addressed by the Technology

soil erosion by water

Wt: loss of topsoil/ surface erosion
Wg: gully erosion/ gullying
Wm: mass movements/ landslides
Wo: offsite degradation effects

3.8 Prevention, reduction, or restoration of land degradation

Specify the goal of the Technology with regard to land degradation:

prevent land degradation
reduce land degradation

4. Technical specifications, implementation activities, inputs, and costs

4.1 Technical drawing of the Technology

4.2 General information regarding the calculation of inputs and costs

Specify how costs and inputs were calculated:

per Technology unit

If relevant, indicate exchange rate from USD to local currency (e.g. 1 USD = 79.9 Brazilian Real): 1 USD =:

2.5

4.4 Costs and inputs needed for establishment

	Specify input	Unit	Quantity	Costs per Unit	Total costs per input	% of costs borne by land users
Labour	None	None	20.0	10.0	200.0	60.0
Plant material	None	None	200.0	1.0	200.0	60.0
Plant material	None	None	1000.0	1.0	1000.0	40.0
Total costs for establishment of the Technology					1400.0
Total costs for establishment of the Technology in USD					560.0

5. Natural and human environment

5.1 Climate

Annual rainfall

< 250 mm
251-500 mm
501-750 mm
751-1,000 mm
1,001-1,500 mm
1,501-2,000 mm
2,001-3,000 mm
3,001-4,000 mm
> 4,000 mm

Agro-climatic zone

semi-arid

5.2 Topography

Slopes on average:

flat (0-2%)
gentle (3-5%)
moderate (6-10%)
rolling (11-15%)
hilly (16-30%)
steep (31-60%)
very steep (>60%)

Landforms:

plateau/plains
ridges
mountain slopes
hill slopes
footslopes
valley floors

Altitudinal zone:

0-100 m a.s.l.
101-500 m a.s.l.
501-1,000 m a.s.l.
1,001-1,500 m a.s.l.
1,501-2,000 m a.s.l.
2,001-2,500 m a.s.l.
2,501-3,000 m a.s.l.
3,001-4,000 m a.s.l.
> 4,000 m a.s.l.

Indicate if the Technology is specifically applied in:

concave situations

5.3 Soils

Soil depth on average:

very shallow (0-20 cm)
shallow (21-50 cm)
moderately deep (51-80 cm)
deep (81-120 cm)
very deep (> 120 cm)

Soil texture (topsoil):

medium (loamy, silty)

Soil texture (> 20 cm below surface):

medium (loamy, silty)

Topsoil organic matter:

medium (1-3%)

5.4 Water availability and quality

Ground water table:

on surface

Availability of surface water:

good

Water quality (untreated):

good drinking water

Water quality refers to:

surface water

Is water salinity a problem?

Is flooding of the area occurring?

5.5 Biodiversity

Species diversity:

medium

Habitat diversity:

medium

5.6 Characteristics of land users applying the Technology

Sedentary or nomadic:

Sedentary

Market orientation of production system:

subsistence (self-supply)

Off-farm income:

less than 10% of all income
> 50% of all income

Relative level of wealth:

poor
average

Individuals or groups:

individual/ household

Level of mechanization:

mechanized/ motorized

Gender:

Age of land users:

middle-aged

5.7 Average area of land used by land users applying the Technology

< 0.5 ha
0.5-1 ha
1-2 ha
2-5 ha
5-15 ha
15-50 ha
50-100 ha
100-500 ha
500-1,000 ha
1,000-10,000 ha
> 10,000 ha

Is this considered small-, medium- or large-scale (referring to local context)?

small-scale

5.8 Land ownership, land use rights, and water use rights

Land ownership:

individual, titled

Land use rights:

individual

Water use rights:

individual

Are land use rights based on a traditional legal system?

Yes

5.9 Access to services and infrastructure

health:

poor
moderate
good

education:

poor
moderate
good

technical assistance:

poor
moderate
good

employment (e.g. off-farm):

poor
moderate
good

markets:

poor
moderate
good

energy:

poor
moderate
good

roads and transport:

poor
moderate
good

drinking water and sanitation:

poor
moderate
good

financial services:

poor
moderate
good

6. Impacts and concluding statements

6.1 On-site impacts the Technology has shown

Socio-economic impacts

Production

crop production

decreased

increased

crop quality

decreased

increased

Water availability and quality

drinking water availability

decreased

increased

Socio-cultural impacts

food security/ self-sufficiency

reduced

improved

cultural opportunities

reduced

improved

Ecological impacts

Water cycle/ runoff

groundwater table/ aquifer

lowered

recharge

Soil

soil crusting/ sealing

increased

reduced

6.2 Off-site impacts the Technology has shown

downstream flooding

increased

reduced

6.3 Exposure and sensitivity of the Technology to gradual climate change and climate-related extremes/ disasters (as perceived by land users)

Gradual climate change

	Season	increase or decrease	How does the Technology cope with it?
annual rainfall		decrease	well
seasonal rainfall	winter	increase	very well

6.4 Cost-benefit analysis

How do the benefits compare with the establishment costs (from land users’ perspective)?

Short-term returns:

positive

Long-term returns:

very positive

How do the benefits compare with the maintenance/ recurrent costs (from land users' perspective)?

Short-term returns:

positive

Long-term returns:

very positive

6.5 Adoption of the Technology

> 50%

View sections

1. General information

1.2 Contact details of resource persons and institutions involved in the assessment and documentation of the Technology

Key resource person(s)

SLM specialist:

Name of project which facilitated the documentation/ evaluation of the Technology (if relevant)

Name of the institution(s) which facilitated the documentation/ evaluation of the Technology (if relevant)

Name of the institution(s) which facilitated the documentation/ evaluation of the Technology (if relevant)

1.3 Conditions regarding the use of data documented through WOCAT

The compiler and key resource person(s) accept the conditions regarding the use of data documented through WOCAT:

1.4 Declaration on sustainability of the described Technology

Is the Technology described here problematic with regard to land degradation, so that it cannot be declared a sustainable land management technology?

2. Description of the SLM Technology

2.3 Photos of the Technology

Media Gallery

2.5 Country/ region/ locations where the Technology has been applied and which are covered by this assessment

Country:

Specify the spread of the Technology:

If precise area is not known, indicate approximate area covered:

Is/are the technology site(s) located in a permanently protected area?

2.6 Date of implementation

If precise year is not known, indicate approximate date:

2.7 Introduction of the Technology

Specify how the Technology was introduced:

3. Classification of the SLM Technology

3.1 Main purpose(s) of the Technology

3.2 Current land use type(s) where the Technology is applied

Land use mixed within the same land unit:

Specify mixed land use (crops/ grazing/ trees):

3.3 Has land use changed due to the implementation of the Technology?

Has land use changed due to the implementation of the Technology?

3.4 Water supply

Water supply for the land on which the Technology is applied:

3.5 SLM group to which the Technology belongs

3.6 SLM measures comprising the Technology

agronomic measures

vegetative measures

structural measures

management measures

3.7 Main types of land degradation addressed by the Technology

soil erosion by water

3.8 Prevention, reduction, or restoration of land degradation

Specify the goal of the Technology with regard to land degradation:

4. Technical specifications, implementation activities, inputs, and costs

4.1 Technical drawing of the Technology

4.2 General information regarding the calculation of inputs and costs

Specify how costs and inputs were calculated:

If relevant, indicate exchange rate from USD to local currency (e.g. 1 USD = 79.9 Brazilian Real): 1 USD =:

4.4 Costs and inputs needed for establishment

5. Natural and human environment

5.1 Climate

Annual rainfall

Agro-climatic zone

5.2 Topography

Slopes on average:

Landforms:

Altitudinal zone:

Indicate if the Technology is specifically applied in:

5.3 Soils

Soil depth on average:

Soil texture (topsoil):

Soil texture (> 20 cm below surface):

Topsoil organic matter:

5.4 Water availability and quality

Ground water table:

Availability of surface water:

Water quality (untreated):

Water quality refers to:

Is water salinity a problem?

Is flooding of the area occurring?

5.5 Biodiversity

Species diversity:

Habitat diversity:

5.6 Characteristics of land users applying the Technology

Sedentary or nomadic:

Market orientation of production system:

Off-farm income:

Relative level of wealth:

Individuals or groups:

Level of mechanization: