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

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

CDE Centre for Development and Environment (CDE Centre for Development and Environment) - Switzerland

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

2.1 Short description of the Technology

Definition of the Technology:

Protection of the riparian zone at Kapingazi River by leaving it undisturbed of human interference

2.2 Detailed description of the Technology

Description:

The farmers’ land plot is situated right alongside the river. Heavy floods have eroded a major part of the riverbank and have led to crop failures on the arable land. The farmer reacted to the degradation by stopping agriculture activities on a certain riparian area in order to enable natural vegetation to reclaim the area. The idea is that during the next years, further floods will deposit sediments, which will increase the elevation and fertility of the plot. As soon as enough soil has accumulated and the elevation has increased enough, the farmer wants to plant French beans in the area. Trees were planted in the riparian zone to stabilize the riverbank and to ensure water quality in the river by retaining sediments from nearby fields. Agricultural chemicals are trapped in the riparian buffer as well.

Purpose of the Technology: The purpose is to deal with the regular floods of Kapingazi River and to gain advantages for the farmer and the environmental conditions. Floods are a natural event and happen regularly, therefore strategies are necessary to diminish their negative effects. Furthermore, the human impact on a riparian ecosystem should be kept as small as possible by trapping chemicals and sediments that reduce water quality for down streamers.

Establishment / maintenance activities and inputs: The area where sediments are trapped is not touched by any human interference, the vegetation grows in its natural way. The stabilizing trees of the riparian are planted at the beginning of the rainy season in March or October. Dead seedlings have to be replaced regularly.

Natural / human environment: Kapingazi River is situated at the south eastern face of Mt. Kenya.It is an agriculturally favourable place due to abundant and reliable rainfall and fertile soils. The studied plot is located at an elevation of 1295 m.a.s.l where mainly maize and vegetables are cultivated. The precipitation amounts to 1150mm a year. Due to the good conditions, this area experiences a steady increase in both population growth and population density.

2.3 Photos of the Technology

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

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 land users' innovation

Comments (type of project, etc.):

2 other people have introduced the same technology. Knowledge about riparian protection was also received through the water resource users association.

3.1 Main purpose(s) of the Technology

• reduce, prevent, restore land degradation
• reduce risk of disasters

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

Comments:

Trees/ shrubs species: Mulinga (cordia africana), Moko (cordia monoica), Mokoego, Moo(Markhamia lutea), Muku (Aphananthe aspera), Mukuelgo, Muu
Major land use problems (compiler’s opinion): Riverbank degradation and small riparian area.

Major land use problems (land users’ perception): Riverbank degradation and destroyed yield due to floods.

Other type of forest: pruning

Forest products and services: timber, fuelwood, protection against natural hazards

Future (final) land use (after implementation of SLM Technology): Forests / woodlands: Fn: Natural

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

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

• Yes (Please fill out the questions below with regard to the land use before implementation of the Technology)

3.4 Water supply

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

• rainfed

3.5 SLM group to which the Technology belongs

• area closure (stop use, support restoration)
• surface water management (spring, river, lakes, sea)

3.6 SLM measures comprising the Technology

Comments:

Main measures: vegetative measures, management measures

Type of vegetative measures: aligned: -along boundary

3.7 Main types of land degradation addressed by the Technology

Comments:

Main type of degradation addressed: Wr: riverbank erosion, Hp: decline of surface water quality

Secondary types of degradation addressed: Bc: reduction of vegetation cover

Main causes of degradation: deforestation / removal of natural vegetation (incl. forest fires), over-exploitation of vegetation for domestic use, Heavy / extreme rainfall (intensity/amounts) (due to climate change?), floods, education, access to knowledge and support services (lack of education)

3.8 Prevention, reduction, or restoration of land degradation

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

• prevent land degradation
• restore/ rehabilitate severely degraded land

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

Specify currency used for cost calculations:

• USD

4.3 Establishment activities

	Activity	Timing (season)
1.	Planting tree seedlings	During rainy season
2.	Replant dead tree seedlings	During rainy season
3.	change of land use

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	Planting tree seedlings	Persons/day	2.0	3.5	7.0	100.0
Labour	Replant dead tree seedlings	Persons/day	2.0	3.5	7.0	100.0
Plant material	Seedlings	pieces	33.0	0.111	3.66	100.0
Plant material	Seedlings for replanting	pieces	12.0	0.111	1.33	100.0
Total costs for establishment of the Technology					18.99
Total costs for establishment of the Technology in USD					18.99

Comments:

Duration of establishment phase: 0.2 month(s)

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

Comments:

Machinery/ tools: Jembe

The costs were calculated for a riparian area with a length of 100m and a width of 10m, since hectares are difficult to apply on a riparian context. The determinant factor for the costs is labour. In this case, the costs are very low because the trees were only planted every 10 metres along the riparian. The seedlings must be bought in a nursery. Most of the bushes regrow naturally and do not need any care.
Some of the seedlings had to be replanted, because they dried up. The required equipment like a spade is available on nearly every farm or can be borrowed from neighbours and is thus not added to the costs.

5.1 Climate

5.2 Topography

Comments and further specifications on topography:

Altitudinal zone: 1298 m a.s.l.

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 high

Soil drainage / infiltration is medium

Soil water storage capacity is very high

5.4 Water availability and quality

Comments and further specifications on water quality and quantity:

Availability of surface water: Sometimes floods, during rains

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 Leaders / privileged

Population density: > 500 persons/km2

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:

• individual, not titled

Land use rights:

• individual

Water use rights:

• communal (organized)

5.9 Access to services and infrastructure

6.1 On-site impacts the Technology has shown

Socio-economic impacts

Production

Socio-cultural impacts

Ecological impacts

Water cycle/ runoff

Soil

Biodiversity: vegetation, animals

Climate and disaster risk reduction

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

	Season	increase or decrease	How does the Technology cope with it?
annual temperature		increase	well

Climate-related extremes (disasters)

Meteorological disasters

	How does the Technology cope with it?
local rainstorm	well
local windstorm	well

Climatological disasters

	How does the Technology cope with it?
drought	well

Hydrological disasters

	How does the Technology cope with it?
general (river) flood	well

Other climate-related consequences

Other climate-related consequences

	How does the Technology cope with it?
reduced growing period	well

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)?

6.5 Adoption of the Technology

• single cases/ experimental

If available, quantify (no. of households and/ or area covered):

1 household

Of all those who have adopted the Technology, how many did so spontaneously, i.e. without receiving any material incentives/ payments?

• 91-100%

Comments:

There is a moderate trend towards spontaneous adoption of the Technology

Comments on adoption trend: The other farmers noticed the positive impacts and adopt the technology.

6.7 Strengths/ advantages/ opportunities of the Technology

Strengths/ advantages/ opportunities in the land user’s view
There are no more crop failures and the riverbank is stabilized How can they be sustained / enhanced? In the other areas that are not much more elevated than the river, flood resistant plants like Napier grass should be planted.
The trees and the riparian bushes provide timber and fuelwood. How can they be sustained / enhanced? Careful use of the resources ensures sustainability.

Strengths/ advantages/ opportunities in the compiler’s or other key resource person’s view
The established forest is a great success for the local fauna and flora in terms of biodiversity How can they be sustained / enhanced? More areas like this could be established

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

Weaknesses/ disadvantages/ risks in the land user’s view	How can they be overcome?
The shrub-covered area is no longer available for cultivation and leads to a decrease in income.	If the farmer depends on the productivity of the riparian, he could plant Napier grass and prune the trees.

Weaknesses/ disadvantages/ risks in the compiler’s or other key resource person’s view	How can they be overcome?
As soon as the riparian forest is silted up and floods become more rare, the farmer plans a deforestation and cultivation of beans in the riparian area with riparian vegetation strips of 5m.	The riparian forest should be kept there to improve ecological benefits and to sustain reduced erosion.

7.1 Methods/ sources of information