1.2 Detalhes do contato das pessoas capacitadas e instituições envolvidas na avaliação e documentação da tecnologia

Nome da(s) instituição(ões) que facilitou(ram) a documentação/ avaliação da Tecnologia (se relevante)

INIDA (INIDA) - Cabo Verde

1.3 Condições em relação ao uso da informação documentada através de WOCAT

Quando os dados foram compilados (no campo)?

03/04/2009

O/a compilador/a e a(s) pessoa(s) capacitada(s) aceitam as condições relativas ao uso de dados documentados através da WOCAT:

Sim

1.5 Referência ao(s) questionário(s) sobre as abordagens da GST

2.1 Descrição curta da tecnologia

Definição da tecnologia:

Afforestation is one of the key technologies to address the fragility of ecosystems: it provides better protection against erosion and makes better use of rainfall in order to maintain the sustainability of agricultural systems.

2.2 Descrição detalhada da tecnologia

Descrição:

Mountain forest areas are considered protective due to their role in regulating water (infiltration of storm water, regulation of surface runoff, and ground water recharge) within the watershed. The main species used are Prosopis juliflora, Parkinsonia aculeata, Jatropha curcas, Atriplex spp, Acacia holosericea, Acacia victoriae, Lantana camara and others, in arid areas and Eucalyptus camaldulensis, Grevillea robusta, Pinus and Cupressus ssp. in highland and humid areas.

Purpose of the Technology: The climatic conditions are characterized by high spatial and temporal variability of the rainfall. The rains are concentrated in two or three months (August and September or October); the highlands and the N-NE parts are wetter compared to the low lands or coastal areas, which are very dry. The average annual rainfall is about 225 mm over the whole island; it has declined since the 1960s, with negative effects on farming conditions, and water supply. However, in areas located more than 500 m above sea level and exposed to trade winds, rainfall can exceed 700 mm. About 20% of the precipitation is lost through runoff, 13% infiltrates the soil and recharges aquifers and 67% evaporates. The evaporation loss is a limiting factor for any agriculture or forestry. Therefore, it is necessary to adapt the afforestation implementation to the specific local conditions (slope, stone cover, climate, etc). To overcome and minimize the problem of water scarcity, several measures are applied: (a) caldeira or half-moon structures achieved with earth or stone; (b) contour furrows or level bench terraces with stone walls arranged along the contour; (c). small dams to protect gullies. The aim is to maximize retention of water and control surface runoff. This not only allows better infiltration of water for the tree plantations, but also protects against soil erosion and facilitates groundwater recharge.

Establishment / maintenance activities and inputs: The success of the reforestation may be indicated not only by the area covered but also by the number of introduced plants. In 1975, there were about 3,000 ha of afforested land. By 2011, there are over 90,000 ha of afforested land with almost 50 million trees. Afforestation has focused mainly on the island of Santiago and Santo Antão, (13% of the total area reforested). Nowadays, more than 20% of the country is afforested. The forest has had a great importance in the context of combating desertification, rehabilitation of vegetation cover, in meeting energy needs and forage production and in developing agrosilvopastoral systems, as well as having undoubtedly contributed to a significant modification of the landscape in Cape Verde. The afforestation activities also contributed to increase biodiversity of some species of birds, including “Galinha di mato” (Numida meleagris), “Codorniz” (Coturnix coturnix), “Passarinha” (Halcyon leucocephala) and others.

Natural / human environment: The forest species are mainly used for land protection and for production of fuel wood and coal. Because of the poor growing conditions, the forest species are not well suited to the construction industry or wood processing.

2.3 Fotos da tecnologia

2.5 País/região/locais onde a tecnologia foi aplicada e que estão cobertos nesta avaliação

2.6 Data da implementação

Caso o ano exato seja desconhecido, indique a data aproximada:

• 10-50 anos atrás

2.7 Introdução da tecnologia

Especifique como a tecnologia foi introduzida:

• através de projetos/intervenções externas

Comentários (tipos de projeto, etc.):

Before 1975, the forestry production was directed to the market of wood, after 1975 began to stock in order to protect the environment

3.1 Principal/principais finalidade(s) da tecnologia

• Reduz, previne, recupera a degradação do solo
• Preserva ecossistema

3.2 Tipo(s) atualizado(s) de uso da terra onde a tecnologia foi aplicada

Comentários:

Major land use problems (compiler’s opinion): The loss of soil by runoff, influenced by its low coverage, reducing their fertility and their thickness

Major land use problems (land users’ perception): Soil erosion by runoff, low productive soils, low organic matter, low soil cover, fertility and depth particularly in the agro-systems with rainfed agriculture.

Cut-and-carry/ zero grazing: goats/ cows

Grazingland comments: production is characterized as extensive, although made in a closed expaço

Plantation forestry: Few trees are cut, since the main objective of which is the forest canopy. The dead are removed, make's some clean and plant new trees every year.

Problems / comments regarding forest use: Before 1975, date of independence of Cape Verde, began to stock the areas discovered. The forest is more dense at high altitudes but also introduced

Forest products and services: nature conservation / protection

Future (final) land use (after implementation of SLM Technology): Mixed: Ms: Silvo-pastoralism

Type of grazing system comments: production is characterized as extensive, although made in a closed expaço

Caso o uso da terra tenha mudado devido a implementação da tecnologia, indique seu uso anterior à implementação da tecnologia:

Mixed: Mo: Other

3.3 Mais informações sobre o uso da terra

Abastecimento de água para a terra na qual a tecnologia é aplicada:

• Precipitação natural

Número de estações de cultivo por ano:

• 1

Especifique:

Longest growing period in days: 90; Longest growing period from month to month: August untill October

Densidade animal (se relevante):

25-50 LU /km2

3.4 Grupo de GST ao qual pertence a tecnologia

• Gestão natural e seminatural de floresta
• Gestão de irrigação (inclusive abastecimento de água, drenagem)

3.5 Difusão da tecnologia

Comentários:

Total area covered by the SLM Technology is 71.5 km2.

The forest with the greatest density of trees occupies an area of 2.51 km2 and is located in the area of higher altitude. The density decreases with decrease in altitude

3.6 Medidas de GST contendo a tecnologia

Comentários:

Secondary measures: structural measures

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Comentários:

Secondary types of degradation addressed: Hg: change in groundwater / aquifer level

Main causes of degradation: soil management (It is cultivated maize and peanuts on land slopes very pronounced and boot up the plants by the root in end of the cycle), crop management (annual, perennial, tree/shrub) (The cleaning of the crop residues of corn is done pulling them by the root, negatively affecting soil stability), poverty / wealth (Leads sensitized peoples to advocate action against the landscape for survival of the family), education, access to knowledge and support services (Knowledge and technical training increase the options for means of survival of the community that acts on the forest, the degree of attending school is low and the illiteracy rate is 17%)

Secondary causes of degradation: overgrazing (Creation of the wild animals compact the soil, destroying the structures for the conservation of soil and water exists, and creates conflict), disturbance of water cycle (infiltration / runoff), Heavy / extreme rainfall (intensity/amounts) (Sometimes occur heavy rains intensity that associated with poor vegetation cover, increase soil erosion), governance / institutional (Lack of applicability of the laws that manage the land)

3.8 Redução, prevenção ou recuperação da degradação do solo

Especifique o objetivo da tecnologia em relação a degradação da terra:

• Recuperar/reabilitar solo severamente degradado

4.1 Desenho técnico da tecnologia

4.2 Especificações técnicas/ explicações do desenho técnico

Treatment of slope before afforestation

Technical knowledge required for field staff / advisors: moderate (It's needed sufficient knowledge to choice species according to their suitability to the natural and human environment)

Technical knowledge required for land users: low

Main technical functions: control of raindrop splash, improvement of ground cover, stabilisation of soil (eg by tree roots against land slides), increase of infiltration, increase of groundwater level / recharge of groundwater

Secondary technical functions: increase in organic matter, increase / maintain water stored in soil, reduction in wind speed

Retention/infiltration ditch/pit, sediment/sand trap
Vertical interval between structures (m): 2
Spacing between structures (m): 5
Depth of ditches/pits/dams (m): 0.2
Width of ditches/pits/dams (m): 0.8
Length of ditches/pits/dams (m): 100
Height of bunds/banks/others (m): 0.4
Width of bunds/banks/others (m): 0.4
Length of bunds/banks/others (m): 100

Construction material (earth): land from the local construction of the ditch is used in the construction of banks, that can be rein

Slope (which determines the spacing indicated above): 30 - 60%

Lateral gradient along the structure: 0%

For water harvesting: the ratio between the area where the harvested water is applied and the total area from which water is collected is: 1:3

Vegetation is used for stabilisation of structures.

4.4 Atividades de implantação

	Atividade	Tipo de medida	Periodicidade
1.	Quantification of the area to be afforested	Vegetativo
2.	Production of plants in nursery ( 500 - 1300 plants)	Vegetativo
3.	Treatment of area (slope) with building terraces (15 m / person / day)	Vegetativo
4.	Treatment of area (slope) with: Making half-moons “Caldeiras” (3 / person / day)	Vegetativo
5.	4. Excavating the pits (10 / person / day): 60x60x60 cm	Vegetativo
6.	Planting (50 /person / day): 5 to 5 metres	Vegetativo
7.	Initial maintenance (8 /persons / day)	Vegetativo
8.	Cleaning and marking on curves level	Estrutural	In April
9.	Construction of the retention / infiltration ditch and opening of the surface of culture	Estrutural	April to June

4.5 Custos e entradas necessárias para a implantação

	Especifique a entrada	Unidade	Quantidade	Custos por unidade	Custos totais por entrada	% dos custos arcados pelos usuários da terra
Mão-de-obra	Labour	ha	1,0	28218,0	28218,0
Equipamento	Tools	ha	1,0	410,0	410,0	10,0
Material vegetal	Seeds	ha	1,0	942,0	942,0
Custos totais para a implantação da tecnologia					29570,0

Comentários:

Duration of establishment phase: 1 month(s)

4.6 Atividades recorrentes/manutenção

	Atividade	Tipo de medida	Periodicidade/frequência
1.	forest cleaning	Vegetativo
2.	forest cleaning	Estrutural	In the dry session

4.7 Custos e entradas necessárias pata a manutenção/atividades recorrentes (por ano)

	Especifique a entrada	Unidade	Quantidade	Custos por unidade	Custos totais por entrada	% dos custos arcados pelos usuários da terra
Mão-de-obra	Forest cleaning	ha	1,0	142,0	142,0	52,0
Custos totais para a manutenção da tecnologia					142,0

Comentários:

Machinery/ tools: Hoe, machete

Costs are estimated according to the time required for afforestation and the entity contracted for the implementation of the activities.

4.8 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

The labour affects the costs more than other factors. Paid labour is a way to achieve additional income for many people in this area. The employer (Directorate General of Agriculture, Sylviculture and Livestock of the Ministry of Rural Development) provides 90% of the cost of the equipment. The lifetime of the equipment is 10-15 years.

5.1 Clima

5.2 Topografia

Indique se a tecnologia é aplicada especificamente em:

• Não relevante

Comentários e outras especificações sobre a topografia:

Altitudinal zone: 100-500 m a.s.l. belongs to the stratum semi-arid sub-humid. Is part of the stratum the highest percentage of the area of the basin. 1000-1500 m a.s.l. includes mainly the cliffs and ridges.

Landforms: Also ridges and footslopes. The hazards of a convex situations does not allow its application in mountain slopes.

5.3 Solos

Caso disponível anexe a descrição completa do solo ou especifique as informações disponíveis, p. ex. tipo de solo, PH/acidez do solo, nitrogênio, capacidade de troca catiônica, salinidade, etc.

Soil depth on average: Very shallow is associated with the sloping hillsides used for rainfull agriculture and shaloow is found mainly in the valley bottoms of the downstream.

Soil texture (topsoil): The soil overlay mainly basaltic rocks, piroclastic, conglomerates and aluvial deposits

Soil fertility is medium - low

Soil drainage / infiltration is good - medium

Soil water storage capacity is medium - low

5.4 Disponibilidade e qualidade de água

Comentários e outras especificações sobre a qualidade e a quantidade da água:

Ground water table: In rain months, it is more superficial than in the dry months

Availability of surface water: There is some just when it rains.

Water quality (untreated): Salinization of water due to over exploitation of wells and boreholes

5.5 Biodiversidade

5.6 Características dos usuários da terra que utilizam a tecnologia

Indique outras características relevantes dos usuários da terra:

Population density: 100-200 persons/km2

Annual population growth: > 4%

and own 1% of the land (the tecnology is applyed by the state, and the state of that country is poor).

Off-farm income specification: forest production (mainly grass and wood) generate an annual income of approximately $2,500

Market orientation of production system: Mixed:Forest products are quite limited: lumber, firewood, charcoal and fodder from the pods. Firewood is the most important product but marketing is quite limited in time and space and subsistence are families who enter the forest for collection of grass and firewood. It is necessary for their survival. The state sells these products in order to finance other development projects.

5.7 Média da área de terra própria ou arrendada por usuários da terra que utilizam a tecnologia

5.8 Propriedade de terra, direitos de uso da terra e de uso da água

Propriedade da terra:

• Estado
• Indivíduo, intitulado

• Diocese

Direitos do uso da terra:

• Comunitário (organizado)
• Indivíduo

Direitos do uso da água:

• Comunitário (organizado)

5.9 Acesso a serviços e infraestrutura

6.1 Impactos no local mostrados pela tecnologia

Impactos socioeconômicos

Produção

Disponibilidade e qualidade de água

Renda e custos

Impactos socioculturais

Impactos ecológicos

Ciclo hídrico/escoamento

Solo

Clima e redução de riscos de desastre

Outros impactos ecológicos

6.2 Impactos externos mostrados pela tecnologia

6.3 Exposição e sensibilidade da tecnologia às mudanças climáticas graduais e extremos/desastres relacionados ao clima (conforme o ponto de vista dos usuários da terra)

Mudança climática gradual

Mudança climática gradual

	Estação do ano	Tipo de mudança climática/extremo	Como a tecnologia lida com isso?
Temperatura anual		aumento	bem

Extremos (desastres) relacionados ao clima

Desastres meteorológicos

	Como a tecnologia lida com isso?
Temporal local	não conhecido
Tempestade de vento local	não bem

Desastres climatológicos

	Como a tecnologia lida com isso?
Seca	não bem

Desastres hidrológicos

	Como a tecnologia lida com isso?
Inundação geral (rio)	não conhecido

Outras consequências relacionadas ao clima

Outras consequências relacionadas ao clima

	Como a tecnologia lida com isso?
Período de crescimento reduzido	bem

Comentários:

Tree species more tolerant of the climatic factors can be used, whilst retaining all the benefits that the existing species provide

6.4 Análise do custo-benefício

Como os benefícios se comparam aos custos de implantação (do ponto de vista dos usuários da terra)?

Como os benefícios se comparam aos custos recorrentes/de manutenção(do ponto de vista dos usuários da terra)?

Comentários:

The high costs are associated with its implementation; afterwards they are significantly reduced and the technology builds up the benefits.

6.5 Adoção da tecnologia

Se disponível, determine a quantidade (número de unidades familiares e/ou área abordada):

None. It's a project of the government

Comentários:

Comments on acceptance with external material support: Only the state has implemented this technology, because it changes the use of land and, without any subsidies, other land users are not encouraged to agree to it.

There is a moderate trend towards spontaneous adoption of the Technology

Comments on adoption trend: there is a continuing campaign of afforestation of state land. There are voluntary associations working in this technology for a better environment

6.7 Pontos fortes/vantagens/oportunidades da tecnologia

Pontos fortes/vantagens/oportunidades na visão do usuário da terra
Production of firewood and grass How can they be sustained / enhanced? make more forest operations such as pruning or cutting of new seedlings
Protection of soil How can they be sustained / enhanced? strengthen maintenance operations

Pontos fortes/vantagens/oportunidades na visão do/a compilador/a ou de outra pessoa capacitada
Increases the quality of the landscape and reduces the loss of soil by runoff How can they be sustained / enhanced? increasing the tree cover in areas with low coverage
Encourages the production of livestock, and fuel wood How can they be sustained / enhanced? integrate the community in managing the forest, and manage it in a sustainable way.

6.8 Pontos fracos, desvantagens/riscos da tecnologia e formas de superá-los

Pontos fracos/desvantagens/riscos na visão do usuário da terra	Como eles podem ser superados?
impossibility of farming in the forest lands	off-farm income creation to compensate
Lack of involvement of farmers in the management of forest areas	capacity building of land users in forest management strategies, elaboration of contracts between State and land users for the management of forest perimeters

Pontos fracos/vantagens/riscos na visão do/a compilador/a ou de outra pessoa capacitada	Como eles podem ser superados?
Reduces the percentage of land for agricultural production	increase productivity in cultivated land and reduce the need for the use of forest land, and implement new production technologies such as greenhouses

7.2 Referências às publicações disponíveis

Título, autor, ano, ISBN:

Desertification at the Santiago Island, DESIRE, 2008

Título, autor, ano, ISBN:

Relatório de avaliação inicial do impacto das realizações de conservação de solos e água em 1993 do projecto WDP, WDP project, 1995

Título, autor, ano, ISBN:

www.ine.cv: Survey of family income and expenditure, INE, 2002

Título, autor, ano, ISBN:

OCDE, CILSS, 1982. Análise do Sector Florestal e Propostas para Cabo Verde. Sahel D (82) 179

Disponível de onde? Custos?

Club do Sahel, pp 203.

Título, autor, ano, ISBN:

MAAA/DGASP, 1996. Rapport de pays pour la Conférence Technique Internationale de la FAO sur les Ressources Phytogénétiques, Leipzig, 1996, pp 38.

Disponível de onde? Custos?

Leipzig, 1996, pp 38.