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

Name of project 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:

Yes

1.5 Reference to Questionnaire(s) on SLM Approaches (documented using WOCAT)

The programme of landscape revitalization and integrated river … [Slovakia]

This approach is devoted to the implementation of 'The Landscape Revitalisation Programme and integrated river basins management of the Slovak Republic' in the Sobotište village.

• Compiler: Zuzana Studvova
• 04/23/2015 midnight

2.1 Short description of the Technology

Definition of the Technology:

Small wooden check dams built in erosion rills, grooves or gorges to reduce flood risk.

2.2 Detailed description of the Technology

Description:

The terrain is considerably sloping with deep "V" cuts in steep terrain. In that area small check dems, made of wooden logs, were realized..

Purpose of the Technology: The aim was to reduce flood risk mitigation by torrential rains and local flooding.

Natural / human environment: The area is situated in a valley at the foot of the Carpathians, which are part of the outer Carpathian Belt formed by flysch. Relatively large differences in elevation of the country cause excessive concentration of surface runoff. Substantial part of the tributaries are formed by concentrating runoff in ravines, erosion grooves, rills. Most of the country consists of agricultural production of crops, less by forests and grasslands.

2.3 Photos of the Technology

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

Country:

Slovakia

Region/ State/ Province:

Slovakia / Myjava

Further specification of location:

Myjava

Comments:

The area of the one small check dam is few squared meters. The technology was used on different places in the area. The area of the city is 4854 ha.

Map

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2.6 Date of implementation

If precise year is not known, indicate approximate date:

• less than 10 years ago (recently)

2.7 Introduction of the Technology

Specify how the Technology was introduced:

• through projects/ external interventions

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

Cropland

• Annual cropping

Annual cropping - Specify crops:

• cereals - maize
• oilseed crops - sunflower, rapeseed, other

• wheat

Number of growing seasons per year:

• 1

Specify:

Longest growing period in days: 180Longest growing period from month to month: April to october

Forest/ woodlands

• (Semi-)natural forests/ woodlands

(Semi-)natural forests/ woodlands: Specify management type:

• Selective felling

Products and services:

• Timber
• Fuelwood
• Nature conservation/ protection
• Recreation/ tourism
• Protection against natural hazards

Comments:

Major cash crop: Oil-seed rape (Brassica napus)
Major food crop: Wheat
Other crops: Maize / corn (Zea mays)

Major land use problems (compiler’s opinion): The main land use problem is steep terrain. During heavy rains runoff forms and floods in the lower part of the area.

Major land use problems (land users’ perception): Steep terrain with influence of heavy mechanisms forms gullies in the forest and causes demages by floods and mud floods.

Selective felling of (semi-) natural forests: Yes

Problems / comments regarding forest use: Unknown

Forest products and services: Primary: Timber, fuelwood, secondary: Recreation / tourism third: protection against natural hazardsnature conservation / protection,

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

• surface water management (spring, river, lakes, sea)

3.6 SLM measures comprising the Technology

structural measures

• S5: Dams, pans, ponds

Comments:

Main measures: structural measures

3.7 Main types of land degradation addressed by the Technology

soil erosion by water

• Wg: gully erosion/ gullying

Comments:

Main type of degradation addressed: Wg: gully erosion / gullying

Main causes of degradation: Heavy / extreme rainfall (intensity/amounts)

Secondary causes of degradation: Heavy forest mechanisms (The use of the heavy mechanisms that make cuts (rills) by its wheels in the ground, especially during or after rain. Runoff that forms, flows in rills and deepen those rills.)

3.8 Prevention, reduction, or restoration of land degradation

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

• reduce land degradation

Comments:

Main goals: mitigation / reduction of land degradation

4.1 Technical drawing of the Technology

4.2 General information regarding the calculation of inputs and costs

other/ national currency (specify):

Euro

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

0.89

4.3 Establishment activities

4.4 Costs and inputs needed for establishment

Comments:

Duration of establishment phase: 0.1 month(s)

4.6 Costs and inputs needed for maintenance/ recurrent activities (per year)

Comments:

Machinery/ tools: chainsaw, handsaw, heavy hammer, shovels, spades, hoes, pickaxes, ax

The costs are calculated (averaged) for one dam. Together 6 wooden dams were built on the study area - 90 ha. The costs were valid for the year 2011. The prices were calculated with the 20% VAT.

4.7 Most important factors affecting the costs

Describe the most determinate factors affecting the costs:

Material and labour price.

5.1 Climate

5.2 Topography

5.3 Soils

If available, attach full soil description or specify the available information, e.g. soil type, soil PH/ acidity, Cation Exchange Capacity, nitrogen, salinity etc.

Soil fertility is medium
Topsoil organic matter is unknown
Soil drainage/infiltration is good
Soil water storage capacity is unknown

5.4 Water availability and quality

Comments and further specifications on water quality and quantity:

Ground water table is unknown
Water quality (untreated) is good drinking water (ground water)

5.5 Biodiversity

5.6 Characteristics of land users applying the Technology

Indicate other relevant characteristics of the land users:

Land users applying the Technology are mainly common / average land users

Population density: 50-100 persons/km2

Annual population growth: negative; 4%

Off-farm income specification: Unknown

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

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

Land ownership:

• communal/ village
• individual, not titled

Land use rights:

• leased

Water use rights:

• leased

5.9 Access to services and infrastructure

6.1 On-site impacts the Technology has shown

Socio-economic impacts

Other socio-economic impacts

Ecological impacts

Other ecological impacts

6.2 Off-site impacts the Technology has shown

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

Gradual climate change

Climate-related extremes (disasters)

Meteorological disasters

Hydrological disasters

6.4 Cost-benefit analysis

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

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

Comments:

The life of the structur, as it is made of wood is not very long. It is sedimated signifitantly afterheavy rains.

6.7 Strengths/ advantages/ opportunities of the Technology

6.8 Weaknesses/ disadvantages/ risks of the Technology and ways of overcoming them

7.1 Methods/ sources of information

7.3 Links to relevant online information

Title/ description:

http://www.hospodarskyklub.sk/docs/katalog2.pdf