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

Nome do projeto que facilitou a documentação/avaliação da Tecnologia (se relevante)

ICARDA Institutional Knowledge Management Initiative

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

International Center for Agricultural Research in the Dry Areas (ICARDA) - Líbano

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

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

Sim

1.4 Declaração de sustentabilidade da tecnologia descrita

A tecnologia descrita aqui é problemática em relação a degradação da terra de forma que não pode ser declarada uma tecnologia de gestão sustentável de terra?

Não

Comentários:

This technology conserves soil and water; it reduces surface water and sediment losses from dryland watersheds. The technology is located in downstream/lowland floodplains, and ideally, it is implemented in an integrated watershed approach. In the present case study, the ‘Marab’ is linked with two main upstream measures: Upland micro-water harvesting (Vallerani system) and gully/channel measures (gully plugs)

2.1 Descrição curta da tecnologia

Definição da tecnologia:

The Marab is a local downstream water harvesting measure in an integrated watershed context, where up/midstream users and applied land management practices affect the Marab.
The technology diverts and spreads excess runoff over deep-soil flood plains. The technology comprises local gully-filling, grading/leveling of seed bed, and construction of a bund-and-spillway system creating several compartments for flood-irrigated agriculture.

2.2 Descrição detalhada da tecnologia

Descrição:

Arid drylands of Jordan receive less than 200mm average annual rainfall. The specific site is located close by Al Majeddyeh village, around 30km south-east of Amman. The average annual rainfall at the site is around 130mm. The average temperature is above 18 degrees Celsius. The human environment is characterized by agro-pastoralists. These are farmers that live in permanent houses but transport their livestock to graze. As consequence of the natural environment and mis-management (e.g. overgrazing) desertification has been an increasingly problem, not only from an environmental perspective (e.g. carbon stocking; lack of water), but also from an socio-economic perspective, because desertification leads to reduced productive lands, consequently resulting in less income for the rural population.
Therefore, the aim of the technology is to achieve high-yield agriculture through flood/macro-catchment water harvesting in arid environments commonly unsuitable for field crop agriculture, creating beneficial impact for local land users. The high yield barley is fed to the livestock (goats and sheeps) of the local agro-pastoralists. Applied in an integrated watershed approach, it meets agricultural demands and motivates sustainable dryland ecosystem management in the uplands. The Marab-technology has a buffering effect on extreme runoff through water retention, for further use in downstream areas, including the trapping of relative fertile sediments from upstream. As the Marab increases yields, it also improves the livelihood of the local population.

The Marab-technology is a macro-catchment water harvesting technology. The Marab is located in the natural depression of the watershed (10 square kilometres), therefore most of the water from the watershed is captured here, instead of being spilled away. Combining this natural depression with the construction of bunds and specific soil leveling, leads to decreased run-off, thus highly increased water infiltration and soil moisture. Thereby, the biomass-production increased as well.
The watershed is characterized by degraded lands upstream (720 ha), where low yield and subsidized barley cultivation is practiced, and by gullies. In a limited part (12 ha) of the upstream area, Vallerani micro-catchments are implemented as a pilot-plot. This might seem contradicting since upstream micro-catchment water harvesting decreases the water in the Marab downstream. However, the Vallerani micro-catchments also have beneficial impacts on the watershed and the Marab, such as flattening peak water flows, reducing erosion and providing fodder. The reduction in water run-off for the Marab as consequence of the Vallerani structures is not significant, due to the small size of the pilot area. But the relations between upstream and downstream should be taken into account.

Upstream watershed measures to buffer and/or avoid extreme runoff events (extreme downstream flooding) in the Marab such as micro-catchment water harvesting structures (Vallerani tractor plow system) and the out-planting of native shrub seedlings, as well as the stabilization of erosive gully systems through gully plugging and revegetation of side banks are advised to be taken before implementing the Marab technology downstream, as they safeguard and protect the Marab. But they are not further into account in this documentation.
Establishment of the downstream Marab system includes:
•Local filling of downstream gull(system) with deep soil
•Leveling/grading of flood plains
•Construction of earth bunds
•Construction of the spillways (stone made)
• Seedbed preparation for planting annual crop such as barley

Marab agricultural production is high and stable. It can reach around 5-6 t ha-1 of barley, compared with the low and strongly varying yields of around 0.05-0.30 t ha-1 in traditionally, without macro water harvesting, cultivated barley. Marab barley produces grains (for fodder and reseeding purposes) and requires local inputs, such as fertilizer. The Marab mitigates downstream flooding and loss of sediments from the watershed. Local farmers applying the Marab technology are very satisfied, because of the extremely increased yield as consequence of the technology. However, as water is captured in the watershed, tensions may arise between the downstream (Marab) users and the upstream users.

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

Indique o ano de implementação:

2017

2.7 Introdução da tecnologia

Especifique como a tecnologia foi introduzida:

• durante experiências/ pesquisa
• através de projetos/intervenções externas

3.1 Principal/principais finalidade(s) da tecnologia

• Melhora a produção
• Reduz, previne, recupera a degradação do solo
• Reduzir riscos de desastre
• Adaptar a mudanças climáticas/extremos e seus impactos
• Criar impacto econômico benéfico

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

Uso do solo misturado dentro da mesma unidade de terra:

Sim

Especificar o uso misto da terra (culturas/ pastoreio/ árvores):

• Agropecuária (incl. agricultura e pecuária)

3.3 O uso do solo mudou devido à implementação da Tecnologia?

O uso do solo mudou devido à implementação da Tecnologia?

• Não (Continuar com a pergunta 3.4)

3.4 Abastecimento de água

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

• Precipitação natural

Comentários:

The Marab facilitates uniform distribution of excess rainwater obtained from the upland (partly Vallerani micro-catchments) and the water is conveyed through rehabilitated gullies to the Marab. (Some) Micro catchments and rehabilitated gullies are essential to avoid damaging water peaks, harming the Marab-structures. The Marab is rainfed and naturally flood irrigated.

3.5 Grupo de GST ao qual pertence a tecnologia

• Solo/cobertura vegetal melhorada
• Coleta de água
• Desvio e drenagem de água

3.6 Medidas de GST contendo a tecnologia

3.7 Principais tipos de degradação da terra abordados pela tecnologia

3.8 Redução, prevenção ou recuperação da degradação do solo

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

• Reduzir a degradação do solo

Comentários:

Retaining surface runoff and locally infiltrating water through bunds increase soil moisture hence agricultural yield increases (e.g. biomass, vegetation cover) , soil crusting decreases (in some selected ponding areas it might increase) - and because of trapping top-soil sediments and residues from the uplands, soil fertility increases likewise.

4.1 Desenho técnico da tecnologia

4.2 Informação geral em relação ao cálculo de entradas e custos

Especifique como custos e entradas foram calculados:

• por área de tecnologia

Especifique a moeda utilizada para os cálculos de custo:

• USD

4.3 Atividades de implantação

	Atividade	Periodicidade (estação do ano)
1.	Implement upstream watershed rehabilitation measure (e.g. Upstream Vallerani micro water harvesting)	Prior of Marab-Technology construction
2.	Implement gully rehabilitation measure (e.g. Midstream gully rehabilitation)	Prior of Marab-Technology construction
3.	Marab site selection (flood plain): topographic assessment (slope, soil depth, etc.) and consideration of watershed hydrology (e.g. for bund and spillway design)	Before the rainy season
4.	Grading/levelling of natural flood plain incl. gully fill (with soil material)	season (Aug. – Nov.)
5.	Implement bund structures (based on step 4)	season (Aug. – Nov.)
6.	Construct stone made design and emergence spillways (based on step 5)	season (Aug. – Nov.)
7.	Preparation of compartmentalized agricultural fields (bund interspaces) for field crop agriculture	season (Aug. – Nov.)

Comentários:

The upstream measures as the Vallerani System and gully rehabilitation are strongly recommended but are not taken into account as costs in this documentation. Because this documentation focuses specifically on the Marab-technology.

4.4 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	Local Workers	person-days	50,0	35,0	1750,0
Mão-de-obra	Land Survey	person-days	6,0	35,0	210,0
Mão-de-obra	Engineer (+assistance)	person-days	15,0	50,0	750,0
Mão-de-obra	Drivers of heavy machinery	person-days	12,0	35,0	420,0
Equipamento	Grader	machine-days	3,0	250,0	750,0
Equipamento	Loader	machine-days	10,0	250,0	2500,0
Equipamento	Deep Plow	machine-days	3,0	200,0	600,0
Equipamento	Tractor (to pull the shallow and deep plow)	machine-days	5,0	200,0	1000,0
Equipamento	Shallow Plow	machine-days	2,0	200,0	400,0
Equipamento	Water Tank Truck	Tank	1,0	50,0	50,0
Equipamento	Small Equipment (Shovel, pickaxe, buckets)	Equipment	1,0	200,0	200,0
Material de construção	Stones	Kubic Metre	200,0	10,0	2000,0
Outros	Transportation of heavy machinery		1,0	2000,0	2000,0
Outros	Security		1,0	300,0	300,0
Custos totais para a implantação da tecnologia					12930,0
Custos totais para o estabelecimento da Tecnologia em USD					12930,0

Se o usuário da terra arca com menos que 100% dos custos, indique quem cobre os custos remanescentes:

ICARDA and National Agricultural Research Centre (NARC)

Comentários:

These costs are for establishment (so one-time) and are for the total Marab-technology i.e. 10 ha.

4.5 Atividades recorrentes/manutenção

	Atividade	Periodicidade/frequência
1.	Maintaining the structures based on observations and possible damages after the rainy season, so no clear maintenance plans	Before the rainy season (Oct. – Nov.)/upon observation

Comentários:

Excludes annual farming costs (e.g. seedbed preparation)

4.6 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	Engineer	person days per year	2,0	50,0	100,0	100,0
Mão-de-obra	Worker	person days per year	6,0	35,0	210,0	100,0
Equipamento	Loader	machine days per year	1,0	250,0	250,0	100,0
Material de construção	Stones	Kubic Metre	10,0	10,0	100,0	100,0
Custos totais para a manutenção da tecnologia					660,0
Custos totais de manutenção da Tecnologia em USD					660,0

Comentários:

The costs of practicing agriculture (e.g. cost of seeds and fertilizer) are not taken into account, since these costs were also made before the implementation of this technology.

4.7 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

The special and heavy machinery affect the cost significantly, since these were not available in the area. The implementation of the technology is labour intensive, therefore labour costs are significant as well. However, these costs are initially, so these specific costs are almost zero after establishment. In addition, all the maintenance is payed for by the land users. So, only the establishment was payed for by external parties.

5.1 Clima

5.2 Topografia

Indique se a tecnologia é aplicada especificamente em:

• Posições convexas

Comentários e outras especificações sobre a topografia:

The Marab itself is rather concave (depression shape) / natural depression. However, the bund structures are convex, spreading water over the field.

5.3 Solos

5.4 Disponibilidade e qualidade de água

A salinidade da água é um problema?

Não

Ocorre inundação da área?

Sim

Regularidade:

Frequentemente

5.5 Biodiversidade

5.6 Características dos usuários da terra que utilizam a tecnologia

Indique outras características relevantes dos usuários da terra:

The actual land users are often poor Jordanians or Syrian refugees. However, the owners of the livestock are relatively rich. The landowners are responsible for the maintenance of the intervention.

5.7 Área média de terrenos utilizados pelos usuários de terrenos que aplicam a Tecnologia

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

Propriedade da terra:

• Indivíduo, intitulado

Direitos do uso da terra:

• Arrendado
• Indivíduo

• NA

Os direitos de uso da terra são baseados em um sistema jurídico tradicional?

Sim

5.9 Acesso a serviços e infraestrutura

6.1 Impactos no local mostrados pela tecnologia

Impactos socioeconômicos

Produção

Renda e custos

Impactos socioculturais

Impactos ecológicos

Ciclo hídrico/escoamento

Solo

Biodiversidade: vegetação, animais

Clima e redução de riscos de desastre

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	aumento ou diminuição	Como a tecnologia lida com isso?
Precipitação pluviométrica anual		redução/diminuição	bem

Extremos (desastres) relacionados ao clima

Desastres meteorológicos

	Como a tecnologia lida com isso?
Temporal local	muito bem

Desastres hidrológicos

	Como a tecnologia lida com isso?
Inundação súbita	muito bem

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 initial investment is quite large. Therefore, the short term returns is classified as slightly negative. After some seasons with good (stable) crop yield the return of investment is positive. Long term benefits are classified positively.

6.5 Adoção da tecnologia

• 1-10%

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

These are some farmers that live near the Marab. They try to copy the Marab in their fields.

De todos aqueles que adotaram a Tecnologia, quantos o fizeram espontaneamente, ou seja, sem receber nenhum incentivo/ pagamento material?

• 91-100%

Comentários:

The local farmers like the technology and acknowledge its positive impacts. They would like to have a Marab themselves (even if their locally owned lands are not suitable in many cases). Local agro-pastoralists copy and apply parts of the technology (especially the bund
system). However, it strongly recommended that implementing a Marab-technology is done as a community-based project/intervention; the Marab technology should be part of an integrated watershed management plan, located at the most suitable location for the entire community.

6.6 Adaptação

A tecnologia foi recentemente modificada para adaptar-se as condições variáveis?

Sim

Caso afirmativo, indique as condições variáveis as quais ela foi adaptada:

• Mudança climática/extremo

Especifique a adaptação da tecnologia (desenho, material/espécie, etc):

The spillway design can be adapted to variable surface runoff occurrence (affected by climate change).

6.7 Pontos fortes/vantagens/oportunidades da tecnologia

Pontos fortes/vantagens/oportunidades na visão do usuário da terra
The farmers highly appreciate the improved economic situation as consequence of the increased yield.
A strength of the Marab technology is that water is harvested and minimally spilled away, preventing top-soil erosion and accumulating soil organic matter consequently preserving soil fertility.
The crop produces grains: can be (partially) used for re-seeding in the coming seasons; economic gain + increase resilience.

Pontos fortes/vantagens/oportunidades na visão do compilador ou de outra pessoa capacitada
Economic improvement through targeted agricultural interventions in the most suitable location(s) of a watershed. This aims at decreasing the pressure on the fragile dry land ecosystem. The locally increased yield raises awareness on non-sufficient field crop agriculture in uplands (commonly achieved) and might increase the willingness for more nature-based sustainable land management measures in the less fertile and runoff generating (more vulnerable uplands) parts of the watershed. Therefore, the Marab technology could be a starting point for a watershed rehabilitation initiative.
The Marab technology creates an opportunity for multiple crop introduction (due to natural flood irrigation) – aside from barley monoculture (agro-diversity).
Increased water infiltration conserves water and might lead to deep percolation (groundwater recharge).

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?
The Marab depends on upstream water users; can lead to increased tensions	Agreement among the community - conducting contacts/contracts among upstream and downstream farmers. Joint watershed management and benefit share could be mediate these tension. And might even lead to watershed rehabilitation.
High initial investment and partially high maintenance costs (including machinery)	Once the implementation is linked with larger environmental benefits – communities might receive funds from the government or international donors.
Loss of cultivation area where the bunds are placed	Unavoidable. However, the gain of interspaces exceeds these losses several times.

Pontos fracos/vantagens/riscos na visão do compilador ou de outra pessoa capacitada	Como eles podem ser superados?
Tensions among multiple actors in the watershed (selection of Marab area)	Develop institutions that could avoid these tensions by establishing agreements, contracts, rules, or regulations.
Heavy machinery in a vulnerable ecosystems – can induce other requests/use by locals (improper use)	Targeted policies in place & enforcements
Increasing wealth inequality between farmers and/or communities.	Creation of institutions, which assure fair distribution. This would benefit the whole watershed.

7.1 Métodos/fontes de informação

7.2 Referências às publicações disponíveis

Título, autor, ano, ISBN:

Strohmeier, S. (2017). Dimensioning of Marab in Majidyya.

Título, autor, ano, ISBN:

Strohmeier, S. (2017). Watershed Restoration in Baia Areas of Jordan Technology Packages for Controlling and Monitoring Gully Erosion.

Disponível de onde? Custos?

https://mel.cgiar.org/projects/jordan-watershed-restoration-project

Título, autor, ano, ISBN:

Mira Haddad, Stefan Strohmeier. (12/12/2017). Treated upland areas map. Jordan: International Center for Agricultural Research in the Dry Areas (ICARDA).

Disponível de onde? Custos?

https://hdl.handle.net/20.500.11766/9108

Título, autor, ano, ISBN:

Stefan Strohmeier, Mira Haddad, Ismail Shukri. (8/11/2018). Marab - water harvesting based agriculture.

Disponível de onde? Custos?

https://hdl.handle.net/20.500.11766/9069

Título, autor, ano, ISBN:

Boubaker Dhehibi, Mira Haddad, Stefan Strohmeier, Masnat El-Hiary. (24/7/2020). Enhancing a Traditional Water Harvesting Technique in Jordan’s Agro-pastoral Farming System. Lebanon: International Center for Agricultural Research in the Dry Areas (ICARDA).

Disponível de onde? Custos?

https://hdl.handle.net/20.500.11766/11506

7.3 Links para informações on-line relevantes

Título/ descrição:

WATER HARVESTING FOR RESTORING RANGELANDS IN JORDAN

URL:

https://www.icarda.org/media/drywire/water-harvesting-restoring-rangelands-jordan