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)

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)

soil reclamation and application of chemical and organic … [Sudan]

No description available.

• Compiler: Daniel Danano Dale
• 05/11/2016 midnight

2.1 Short description of the Technology

Definition of the Technology:

Physical and chemical treatment saline soil

2.2 Detailed description of the Technology

Description:

Physical amendment by loam soil or adding agricultural gypsum which represents the chemical ammendment

Purpose of the Technology: Generate soil suitable for different kinds of plants creating a diversity in sources of income providing a safety net for farmers.

Establishment / maintenance activities and inputs: The maintenance activity began by digging pits with different depth which depended on the type of fruit the farmers were planting. farmers then replaced the soil with loam soil.

The chemical amendment started with different measurements like Exchangeable Sodium Percentage (ESP) Cation Exchangeable Capacity CEC and Electrolyte Conductivity (EC) and then a suitable amount gypsum was added based on this these measurents.

Natural / human environment: The area is located on the near the Blue Nile which means there is a source of irrigation water. When the pumps are broken they use ground water which makes it worse because it saline.

The area is semiarid, flat topography with deep clay soil. It is mainly cropland.
Land owners of between 2 to 20 hectares employ poor farm hands who are paid small wages.
These farm hands use mainly hand held hoes.

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

Country:

Sudan

Region/ State/ Province:

Khartoum

Further specification of location:

Jabal Aulia

Specify the spread of the Technology:

• evenly spread over an area

Comments:

Boundary points of the Technology area: East
North

Total area covered by the SLM Technology is 100 km2.

Under research

Map

×

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:

• during experiments/ research

Comments (type of project, etc.):

4 years

3.1 Main purpose(s) of the Technology

• improve production
• create beneficial economic impact

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

Cropland

• Annual cropping
• Perennial (non-woody) cropping
• Tree and shrub cropping

Annual cropping - Specify crops:

• cereals - sorghum
• fodder crops - grasses

• fruit trees

Number of growing seasons per year:

• 1

Comments:

Major land use problems (compiler’s opinion): Saline soil, saline ground water, mainly one type of vegetation(fodder)

Major land use problems (land users’ perception): Saline soil, saline ground water, mainly one type of vegetation(fodder)

Future (final) land use (after implementation of SLM Technology): Cropland: Cp: Perennial (non-woody) cropping

3.4 Water supply

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

• full irrigation

3.5 SLM group to which the Technology belongs

• rehabilitate saline soil

3.6 SLM measures comprising the Technology

agronomic measures

• A4: Subsurface treatment

vegetative measures

• V2: Grasses and perennial herbaceous plants

structural measures

• S4: Level ditches, pits

Comments:

Secondary measures: vegetative measures, structural measures

Type of agronomic measures: mixed cropping / intercropping, soil conditioners (lime, gypsum), pits

3.7 Main types of land degradation addressed by the Technology

chemical soil deterioration

• Cs: salinization/ alkalinization

Comments:

Main causes of degradation: droughts (Evaporation of water leaves behind mineral salts)

3.8 Prevention, reduction, or restoration of land degradation

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

• reduce land degradation
• restore/ rehabilitate severely degraded land

4.1 Technical drawing of the Technology

4.4 Costs and inputs needed for establishment

4.7 Most important factors affecting the costs

Describe the most determinate factors affecting the costs:

The soil type

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 very low

Soil drainage / infiltration is poor

Soil water storage capacity is high

5.4 Water availability and quality

Comments and further specifications on water quality and quantity:

Water quality (untreated): Also poor for drinking

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

Difference in the involvement of women and men: farmers

Population density: < 10 persons/km2

60% of the land users are very rich (own more then 5 ha or more).
40% of the land users are rich (2 ha).

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, titled

Land use rights:

• individual

Water use rights:

• communal (organized)

6.1 On-site impacts the Technology has shown

Ecological impacts

Soil

Biodiversity: vegetation, animals

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

Climatological disasters

Hydrological disasters

Other climate-related consequences

Other climate-related consequences

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