Tecnologias

Dug-Out Well [Índia]

Chahala

technologies_1088 - Índia

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1. Informação geral

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

Pessoa(s) capacitada(s)

Especialista em GST:

Kar Monoranjan

Project implementing agency, 9437287808

Especialista em GST:

Mohanty Rajib

Watersheds office, DRDA, Balangir, 09437241751

Nome da(s) instituição(ões) que facilitou(ram) a documentação/ avaliação da Tecnologia (se relevante)
Watershed Office DRDA - Índia

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

2. Descrição da tecnologia de GST

2.1 Descrição curta da tecnologia

Definição da tecnologia:

It can be defined as combination of structural & agronomic measures where along with other technology like Water harvesting structures & field bunding on the upper reaches & a dug out well is constructed in the periphery of the drainage line which is a govt land. The 15 acres of land near to its sphere of influence which reamained fallow earlier could yield good production system throughout the year.It is in the semi-arid climatic zone with moderate slope in medium soil depth conditions. The whole idea is to avail water & link with self-subsistance & market oriented production systems from private lands.

2.2 Descrição detalhada da tecnologia

Descrição:

The area is located at the foot-slopes on the major drainage line of the watershed. The technology area is located near the main drainage line, therefore, the sub-surface water availability is more & can be utilised for cultivation of crop even in dry spell of the year. Earlier the farmers near to this place tried to dig a small well & could irrigate for only 2-3 months of the year to get some subsistence crops. Therefore, water availability throughout the year is a first priority of the farmers. At the outset, a livelihood focused micro-plan had been prepared by the villagers stating the details of the base-line data along with problems & alternative solutions. The patch was identified to be the worst affected & the owners of the land are poor people (defined by villagers). Usually the land users used to migrate in search of labour due to loss in the agriculture. It is because the water availability is not there at the time of requirement. The people of this patch are ready to contribute at least 10% of the cost as the structure is to be constructed in government land. In the mean time the project sent the PIA to Water technology centre for eastern region, Bhubneswar to study the linking of water harvesting structure & dug-out well & its relevance in this context of our situation. The technology was done in the village Chareimara which is one out of 3 villages of one watershed, located at the lower reach of the watershed. In the meantime many water harvesting structures & field bunds were constructed due to which the water could be stored in the recharge zone. This area is again a mix of stony patches in the crop land. One water harvesting structure was constructed just at the upper reaches. The surrounding area was totally unbunded with clay loam soil. Therefore, land users are of opinion to go for a deeper dug well which can feed water through out to at least 15 acre of land. The requirement of land users was to get some water in each farmers land to protect the Kharif & rabi crop including summer vegetables. A four-day in field training was conducted by the project to community link workers (SWC), particularly on patch treatment, use of levelling instruments like A-frame, proper planning, design, lay-out of different type of structure in a map & ground. At the same time there was a blind belief that large water harvesting structures are more useful to farmers. So the land users demanded for a large WHS on the drainage bed which requires huge investment & high maintenance cost. But when some farmers of that watershed could get good result by digging well these land users also started thinking about a "community dug-well". After many rounds of discussion with the land users by the SWC specialist followed by a detail transact along with land users, the results of first round transact was mentioned in the micro-plan. But the aim behind subsequent transact was to looking at problems & demarcating on the map. After that estimate was prepared & lay-out of the well was done by SWC specialist with the help of community link workers & land users. The lay-out is also little bit different from traditional well i.e. square shaped in stead of round shape. The work was implemented by the land users & 7 outside labourers with the supervision of the User's group leader & monitoring was done by the SWC specialist. The priority by the land users was agronomic measures like changing the crop in the land. Training was conducted on the probable alternatives of agronomic measures like taking of crop which is of little longer duration, intercrops & cash crops etc. The structural measures are subsidised by the project & the agronomic measures was taken up on loan basis. The development fund was also generated out of contribution from the land users which was deposited in a separate account for future maintenance cost.

2.3 Fotos da tecnologia

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

País:

Índia

Especificação adicional de localização:

Orissa, Balangir, Suktel/Mahanadi

Especifique a difusão da tecnologia:
  • Uniformemente difundida numa área
Se a Tecnologia estiver uniformemente distribuída por uma área, especifique a área coberta (em km2):

0,6

Se a área precisa não for conhecida, indicar a área aproximada coberta:
  • 0,1-1 km2
Comentários:

Total area covered by the SLM Technology is 0.6 km2.

The concerned watershed is a subsidiary system of the Suktel river drainage sytem. The area of operation is micro watershed , i.e. 500 hac as a unit of the tributary of the Suktel river

2.6 Data da implementação

Caso o ano exato seja desconhecido, indique a data aproximada:
  • menos de 10 anos atrás (recentemente)

2.7 Introdução da tecnologia

Especifique como a tecnologia foi introduzida:
  • através de projetos/intervenções externas
Comentários (tipos de projeto, etc.):

A group of SWC proffessionals were sent to WTCER, Bhubaneswar to study the replication of ' Linking of water harvesting structure with dug-out wells. . When SWC specialist share their experience to land users, some of the farmers agreed to have a experimentation of the technology. Therefore, modification has been done by the SWC specialists as per the suitability & requirement of the land users.

3. Classificação da tecnologia de GST

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

Terra de cultivo

Terra de cultivo

  • Cultura anual
  • Cultura perene (não lenhosa)
Cultivo anual - Especificar culturas:
  • legumes - melão, abóbora ou aboborinha
  • legumes - outros
  • legumes - raízes (cenouras, cebolas, beterraba, outros)
  • rice
Cultivo perene (sem lã) - Especificar culturas:
  • cana-de-açúcar
Número de estações de cultivo por ano:
  • 2
Especifique:

Longest growing period in days: 120Longest growing period from month to month: Jun - OctSecond longest growing period in days: 80Second longest growing period from month to month: Oct - Feb

O cultivo entre culturas é praticado?

Sim

Em caso afirmativo, especifique quais são as culturas intercultivadas:

Mixed cropping / intercropping
Material/ species: Gourd, Brinjal, onion, sugarcane,water melon
Remarks: After the Kharif crop

Comentários:

Major land use problems (compiler’s opinion): This patch of the land used to remian fallow in comparison to other lands of the village, with high concentration of marginal farmer. Due to less water availability at the time of need of crop the farmers were quite hesitant to take up diversified crop. They used to migrated instead of taking up any agriculure due to loss year afte year. The main requirement of water throught out the year.

Major land use problems (land users’ perception): 1. Run-off was severe at the time of rainy season but difficult to capture water for other period of the year.2. Long duration crops is not possible, ex- paddy,pulses, sugarcane, vegetables etc. 3. Although land is there but it remained fallow in the past due to water availability. They were the migrants because of onstraint in agriculture.

Type of cropping system and major crops comments: Paddy/Kharif rainfed vegetables, Winter vegetables & spices, summer vegetables. Gourd, Brinjal, onion, sugarcane,water melon

3.4 Abastecimento de água

Outros (p. ex. pós-inundação):
  • all of them
Comentários:

Water supply: rainfed, mixed rainfed - irrigated

3.6 Medidas de GST contendo a tecnologia

Medidas agronômicas

Medidas agronômicas

  • A1: cobertura vegetal/do solo
  • A2: Matéria orgânica/fertilidade do solo
  • A5: Gestão de sementes, variedades melhoradas
  • A7: Outros
Medidas estruturais

Medidas estruturais

Comentários:

Type of agronomic measures: better crop cover, early planting, mixed cropping / intercropping, manure / compost / residues, mineral (inorganic) fertilizers, rotations / fallows, breaking compacted topsoil, deep tillage / double digging

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Erosão do solo pela água

Erosão do solo pela água

  • Wr: erosão das margens

3.8 Redução, prevenção ou recuperação da degradação do solo

Especifique o objetivo da tecnologia em relação a degradação da terra:
  • Prevenir degradação do solo
  • Recuperar/reabilitar solo severamente degradado
Comentários:

reclamation of denuded land

4. Especificações técnicas, implementação de atividades, entradas e custos

4.1 Desenho técnico da tecnologia

Especificações técnicas (relacionada ao desenho técnico):

Dug Well in Chareimara

Technical knowledge required for field staff / advisors: low

Technical knowledge required for land users: low

Main technical functions: control of dispersed runoff: retain / trap, water harvesting / increase water supply

Secondary technical functions: control of concentrated runoff: impede / retard, water spreading

Better crop cover
Material/ species: paddy, vegetables,
Quantity/ density: Average
Remarks: Paddy for subsistence & vegetables in the land with rainfed & market demand.

Mixed cropping / intercropping
Material/ species: Gourd, Brinjal, onion, sugarcane,water melon
Quantity/ density: ealy harve
Remarks: After the Kharif crop

Manure / compost / residues
Material/ species: 4 -5 cartloads of cow-dung

Mineral (inorganic) fertilizers
Material/ species: Minimum basal doses

Rotations / fallows
Material/ species: the cultivation of crop started after the availability of water.
Remarks: Rainfed paddy with vegetables

Breaking compacted topsoil
Remarks: As the land was fallow earlier, breaking of compact soil is necessary.

Deep tillage / double digging
Remarks: The land where vegetables was grown, deep tillage was required

Structural measure: diversion ditch / cut-off drain
Depth of ditches/pits/dams (m): 26ft
Width of ditches/pits/dams (m): 35ft
Length of ditches/pits/dams (m): 33ft

Construction material (stone): Stone excavetd from the well was put as protection embankment

Construction material (concrete): A concrete guard wall will be put on the periphery of well which will be started in the current year

For water harvesting: the ratio between the area where the harvested water is applied and the total area from which water is collected is: 1:150

Change of land use type: After paddy & kharif vegetables,rabi & summer vegetables .Th e bunds of the patch need to be covered with plants

Change of land use practices / intensity level: Inter crops, mixed crops have to be practiced to get optimum benefit.

Layout change according to natural and human environment: Grazing was restricted in these areas & land was optimally used, like bund cultivation.

Major change in timing of activities: Early varieties of vegetables will fetch at least double benefit.

Control / change of species composition: The improved varities seed need to be introduced

4.2 Informação geral em relação ao cálculo de entradas e custos

Outro/moeda nacional (especifique):

Rupee

Se for relevante, indique a taxa de câmbio do USD para moeda local (por exemplo, 1 USD = 79,9 Real): 1 USD =:

50,0

Indique a média salarial da mão-de-obra contratada por dia:

1.00

4.3 Atividades de implantação

Atividade Periodicidade (estação do ano)
1. Survey April-May
2. Demarkation on map April-May
3. Estimate & lay-Out April-May
4. Implementation of work May-July
5. Survey & demarkation of water line April
6. Digging of well May-July
7. Water-way August

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 Medium hectare 1,0 1250,0 1250,0
Custos totais para a implantação da tecnologia 1250,0
Custos totais para o estabelecimento da Tecnologia em USD 25,0
Comentários:

Duration of establishment phase: 24 month(s)

4.5 Atividades recorrentes/manutenção

Atividade Periodicidade/frequência
1. Ploughing April-May /
2. Intercultural operation with manure & compost application June /
3. Sowing of paddy & rainfed vegetables July & sep for two crops /
4. weeding & intercultural operation, if required. July /
5. Harvesting of paddy orvegetables or sugarcane. Nov /
6. Winter early variety vegetables like onion, brinjal, leafy vegetables, gourds etc. Dec /
7. Harvesting of winter spices & vegetables Feb-March /
8. Sowing of summer vegetables like water melon etc March /
9. Intercultural operation April /
10. Harvesting of vegetables May /
11. Management of surplus water Rainy Season/annual
12. Collapsing of bund annual
13. Well must be desilted Dry season/each cropping season
14. Control of surplus water-flow August-Sep / annual
15. Stabilisation of bund at weak points Nov-Dec / annual
16. Desiltation of well April-may / annual

4.7 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

Stones are to be excavated from such a height of 26 ft.

5. Ambiente natural e humano

5.1 Clima

Precipitação pluviométrica anual
  • <250 mm
  • 251-500 mm
  • 501-750 mm
  • 751-1.000 mm
  • 1.001-1.500 mm
  • 1.501-2.000 mm
  • 2.001-3.000 mm
  • 3.001-4.000 mm
  • > 4.000 mm
Zona agroclimática
  • Subúmido
  • Semiárido

5.2 Topografia

Declividade média:
  • Plano (0-2%)
  • Suave ondulado (3-5%)
  • Ondulado (6-10%)
  • Moderadamente ondulado (11-15%)
  • Forte ondulado (16-30%)
  • Montanhoso (31-60%)
  • Escarpado (>60%)
Formas de relevo:
  • Planalto/planície
  • Cumes
  • Encosta de serra
  • Encosta de morro
  • Sopés
  • Fundos de vale
Zona de altitude:
  • 0-100 m s.n.m.
  • 101-500 m s.n.m.
  • 501-1.000 m s.n.m.
  • 1.001-1.500 m s.n.m.
  • 1.501-2.000 m s.n.m.
  • 2.001-2.500 m s.n.m.
  • 2.501-3.000 m s.n.m.
  • 3.001-4.000 m s.n.m.
  • > 4.000 m s.n.m.

5.3 Solos

Profundidade do solo em média:
  • Muito raso (0-20 cm)
  • Raso (21-50 cm)
  • Moderadamente profundo (51-80 cm)
  • Profundo (81-120 cm)
  • Muito profundo (>120 cm)
Textura do solo (solo superficial):
  • Médio (limoso, siltoso)
  • Fino/pesado (argila)
Matéria orgânica do solo superficial:
  • Médio (1-3%)
  • Baixo (<1%)

5.6 Características dos usuários da terra que utilizam a tecnologia

Orientação de mercado do sistema de produção:
  • Subsistência (autoabastecimento)
  • Comercial/mercado
Rendimento não agrícola:
  • Menos de 10% de toda renda
Nível relativo de riqueza:
  • Muito pobre
  • Pobre
Nível de mecanização:
  • Trabalho manual
  • Tração animal
Indique outras características relevantes dos usuários da terra:

1% of the land users are poor (2-3 acres of land).

Off-farm income specification: Others have also activities like NTFP collection, keeping small ruminants like goats, chicks etc.

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

  • < 0,5 ha
  • 0,5-1 ha
  • 1-2 ha
  • 2-5 ha
  • 5-15 ha
  • 15-50 ha
  • 50-100 ha
  • 100-500 ha
  • 500-1.000 ha
  • 1.000-10.000 ha
  • > 10.000 ha
Comentários:

Average area of land owned or leased by land users applying the Technology: 0.5-1 ha, 0.5-1 ha, 1-2 ha, 1-2 ha

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:
  • Indivíduo

6. Impactos e declarações finais

6.1 Impactos no local mostrados pela tecnologia

Impactos socioeconômicos

Produção

Produção agrícola

diminuído
aumentado
Renda e custos

Rendimento agrícola

diminuído
aumentado

Impactos socioculturais

Instituições comunitárias

Enfraquecido
Fortalecido

Atenuação de conflitos

Agravado
Melhorado

Impactos ecológicos

Ciclo hídrico/escoamento

Drenagem de excesso de água

Reduzido
Melhorado

6.2 Impactos externos mostrados pela tecnologia

Caudal confiável e estável em período seco

Reduzido
aumentado

6.4 Análise do custo-benefício

Como os benefícios se comparam aos custos de implantação (do ponto de vista dos usuários da terra)?
Retornos a curto prazo:

neutro/balanceado

Retornos a longo prazo:

muito positivo

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

levemente negativo

Retornos a longo prazo:

levemente positivo

6.5 Adoção da tecnologia

Comentários:

100% of land user families have adopted the Technology with external material support

10 land user families have adopted the Technology with external material support

Comments on acceptance with external material support: survey results

6.7 Pontos fortes/vantagens/oportunidades da tecnologia

Pontos fortes/vantagens/oportunidades na visão do usuário da terra
Water availilbilty
A vibrant community institution could be strngthed.
A well is much better than a large water harvesting structure, it became a eye opener in the surrounding villages.
Pontos fortes/vantagens/oportunidades na visão do compilador ou de outra pessoa capacitada
Water availability in the dry spell

How can they be sustained / enhanced? Integrated & threes season land use practice
The water availability will be there through out the year.Therefore, 15 acres of land can be irrigated & three seasonal crop can be taken up.

7. Referências e links

7.1 Métodos/fontes de informação

Módulos