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)

Book project: where people and their land are safer - A Compendium of Good Practices in Disaster Risk Reduction (DRR) (where people and their land are safer)

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

HELVETAS (Swiss Intercooperation)

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

Quando os dados foram compilados (no campo)?

05/10/2016

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:

Context specific environmentally friendly technology

2.1 Descrição curta da tecnologia

Definição da tecnologia:

Floating Garden is a traditional technology, practiced in the southern parts of Bangladesh locally called “Baira” or “Dhap”. The technology allows producing crops, vegetables and seedlings in areas where farming land is scarce and where the land is flodded or water logged for more than six months in a year.

2.2 Descrição detalhada da tecnologia

Descrição:

Floating gardensa are a traditional practice in south central districts of Bangladesh since long time, and has been promoted by government extension agency and development organizations in different parts of the country with technical improvements. With this technology, crops (mainly vegetables) are cultivated on floating garden beds in areas where the land inundated for more than six months in a year.
Establishment:
The basic input and main raw material to prepare the floating garden bed are water hyacinths (Eichhornia crassipes). In some cases bamboo sticks are also used to make the floating beds more resistant. The floating gardens are of different size, with a standard size per bed during preparation of 1.5 - 1.8 meter wide, 10 -11 meter long and 1 - 1.3 meter above water level. However, considering local context- such as wave action, size of water body, presence of a wetland - the bed size may vary, also depending on whether compost is added on the top. The establishment of the floating gardens are very cheap in terms of raw material and require mainly human manual labour for its establishment, without material costs for maintenance.
The garden can be used for two purposes: for vegetable production and for vegetable seedling production.
In water logged areas (where water remains for the whole year) floating beds are mainly used for vegetable production. Almost any type of vegetables can be grown in the floating bed. Production of leafy vegetables proofed to be most profitable. In addition, all types of vegetable seedlings and rice seedlings can produced in floating garden based on demand. In other areas, which are only inundated temporarily, floating garden can be used for both vegetable and seedling production. In this second case seedlings can be transfered from the garden to the fields on the main land immediately after receding of the water. This practice can save 2 to 3 weeks time of vegetable or rice production in winter season. This is a crucial advantage considering the trend to shorter growing periods due to unpredictable early spring rains.
A key advantage of floating gardening is the fact that heavy rainfalls usually do not have any negative effect on culture of the floating gardens, which are a highly effective and beneficial risk reduction and climate change mitigation technology. Floating gardens can further contribute to food security and improved nutrition for poor households, and it is a source for additional income by making use of cheap and abundant local input resources. Different NGOs improved and promoted this technology in north-west and north-east parts of Bangladesh since 2000. Since 2011 also the public agricultural extension agencies promote this technology.
As an overall goal this technology aims at protecting people’s assets for agricultural production from damages due to seasonal floods and provide options for alternative income resources. The floating garden technology is designed as measure to protect effectively from yearly floods. It might not be robust enough for extreme events with heavy storms and waves. Smaller repairing can be done by the owners themselves. In case of major damages the beds can be replaced by new ones, since the investment costs are very low. In the shallow areas the floating beds may become ordinary garden beds or fields during dry season.

2.3 Fotos da tecnologia

2.4 Vídeos 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:

• 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.):

The technology was first piloted through implementation of “Livelihoods, Empowerment and Agroforestry (LEAF)” project. Later on, the technology was expanded through implementation of “Agricultural Innovation for Eliminating Extreme Poverty” (AIEEP 2009-2012) and through Unnoti -Prosperity in Haor project (2013-2016).

3.1 Principal/principais finalidade(s) da tecnologia

• Melhora a produção
• Reduzir riscos de desastre
• Adaptar a mudanças climáticas/extremos e seus impactos
• Criar impacto econômico benéfico
• Cria impacto social benéfico

• improve household food security / nutrition

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

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

earlier these wetland areas were mainly fallow (not used for any productive purpose). During monsoon season, the waterbodies naturally count on fish reserves, which are captures by local farmers including landless poor. Water hyacinth of these wetlands were partially used as fodder, though most of it was decomposed naturally without use.

3.3 Mais informações sobre o uso da terra

Outros (p. ex. pós-inundação):

• post-flooding

Comentários:

Floating gardens are prepared on the water body, hence can absorb sufficient water without additional irrigation.

Número de estações de cultivo por ano:

• 2

Especifique:

Winter and early Summer

3.4 Grupo de GST ao qual pertence a tecnologia

• Solo/cobertura vegetal melhorada
• Gestão/proteção de zonas úmidas
• Hortas familiares

3.5 Difusão da tecnologia

Especifique a difusão da tecnologia:

• Aplicado em pontos específicos/concentrado numa pequena área

3.6 Medidas de GST contendo a tecnologia

Comentários:

floating beds, which are adapted to changing water levels (floods).
change of land/water management from pure wetlands to gardens.

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Comentários:

More frequent and severe seasonal floodings

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
• Adaptar à degradação do solo

Comentários:

The technology is used to adapt to natural seasonal flooding, to prevent damages caused by floods by using wet lands for crop production.

4.1 Desenho técnico da tecnologia

4.2 Especificações técnicas/ explicações do desenho técnico

• Dimensions: The floating beds are of different size. Standard size at the time of preparation 1.5 - 1.8 meter wide, 10-11 meter long and 1.0-1.3 meter height.
• Floating beds should not cover more than 30% area of the respective water body (wetland area) in order to keep enabling environment for other aquatic resources (e.g. fishes).
• Construction material used: The basic and main ingredient/material for the preparation of the floating garden are water hyacinths (Eichhornia crassipes). In some cases, bamboo sticks are also used to increase its resistance. If available, composts may be applied on the top of floating beds, though not compulsory.

4.3 Informação geral em relação ao cálculo de entradas e custos

Especifique como custos e entradas foram calculados:

• por área de tecnologia

Outro/moeda nacional (especifique):

BDT

4.4 Atividades de implantação

	Atividade	Tipo de medida	Periodicidade
1.	Bed preparation (by hired labour)	Estrutural	August-September
2.	Seeding, care and maintenance, harvesting	Agronômico	September-March

Comentários:

After full harvesting of vegetable in March, the bed (decomposed water hyacinth) can be used as organic compost for other crops in cultivable land.

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	Hired labour cost for bed establishment	persons day	10,0	300,0	3000,0
Mão-de-obra	Bed management cost (seeing, care, harvest ect.)	persons day	90,0	300,0	27000,0	100,0
Material vegetal	Seeds per year	kg	25,0	100,0	2500,0	100,0
Material de construção	Bamboo	bamboo quantity	2,0	100,0	200,0
Material de construção	Rope and lubricants	lumpsum	1,0	250,0	250,0
Custos totais para a implantação da tecnologia					32950,0

4.6 Atividades recorrentes/manutenção

Comentários:

No maintenance required

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

Comentários:

No specific maintenance costs during the year/season required. Small repairments are part of the labour costs of agronomic mesures to be done in paralele with care work.

4.8 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

In case the inputs, mainly water hyacinths, are not available at the selected sites, this increases the material and/or labour costs for hyacinths to be transported from distant locations.
All indicated costs refer to yearly costs, since the beds ususally have to be restablished every year.

5.1 Clima

5.2 Topografia

Indique se a tecnologia é aplicada especificamente em:

• Posições côncavas

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.

Not applicable for this technology as floating bed prepare on surface of water body

5.4 Disponibilidade e qualidade de água

A salinidade da água é um problema?

Não

Ocorre inundação da área?

Sim

Regularidade:

Frequentemente

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

Each year seasonal monsoon flooding. However, early flash (pre monsoon flood) occur only every 3 years.

5.5 Biodiversidade

Comentários e outras especificações sobre biodiversidade:

Water bodies are rich with diverse aquatic organisms

5.6 Características dos usuários da terra que utilizam a tecnologia

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

Direitos do uso da água:

• Acesso livre (não organizado)
• Indivíduo

Comentários:

The farmers establish floating gardens in public water body and in private water body (with verbal agreement of water body owners).

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

Biodiversidade: vegetação, animais

Clima e redução de riscos de desastre

6.2 Impactos externos mostrados pela tecnologia

Comentários relativos à avaliação de impacto:

No specific research have been made on off-site and environmental impact of the floating garden technology.

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)

Extremos (desastres) relacionados ao clima

Desastres hidrológicos

	Como a tecnologia lida com isso?
Inundação geral (rio)	bem
Inundação súbita	muito bem

Outros extremos (desastres) relacionados ao clima

Outros (especificar)	Como a tecnologia lida com isso?
increasingly unpredictable start and duration of monsoon/rainy season, floods	moderadamente

Outras consequências relacionadas ao clima

Outras consequências relacionadas ao clima

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

Comentários:

with the effect of climate change monsoon have become more impredictable: starting sooner, ending later.
The techology allows to plant and grow seedlings already before the end of rainy season, and can therefor mantain or even extend the growing period.

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:

Considering only one season - particualrly for intensive raining seasons - the gardens have positive benefits.
Considering a longer time period with less intensive rainy seasons, the fact that the bed ususally have to be reestablished every year might require an important work from a land user's perspective (therefore rate with slightly less benefits)

6.5 Adoção da tecnologia

• 1-10%

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

about 1000

Entre todos aqueles que adotaram a tecnologia, quantos adotaram espontaneamente, ou seja, sem receber nenhum incentivo material/pagamentos?

• 10-50%

6.6 Adaptação

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

Não

6.7 Pontos fortes/vantagens/oportunidades da tecnologia

Pontos fortes/vantagens/oportunidades na visão do usuário da terra
In the Haor area’ (local wetland ecosystem flooded during monsoon season) water hyacinths are naturally abundant. These are the basis and substrate for floating gardens. Hence, the technology makes use of local plants as resorces, as substrate of the floating garden. If required, floating bed can easily moved from one location to another. After preparation of the bed, no additional hard labour is required.
There is hardly pest infestation, therefore no use of pesticides is required.
After final harvest, the beds are used as organic compost for the fields. Further, the farmers either can sell or use the substrate of the garden as compost.
This simple technology and can easily be replicated.
During heavy rainfalls and storms, the crop are not damaged by floods since on a floating surface.

Pontos fortes/vantagens/oportunidades na visão do compilador ou de outra pessoa capacitada
Through this technology, crops can be produced on the water surface. The usually abundant water hyacinth are used as a productive resource, which increases the surface for crop production. In contexts, such as Bangladesh, where land resources are scarce this opens production options in public/abundant water bodies for landless farmers, who can earn money within a short period and with little investment.
The production for home consumption improves nutrition, contributes to food security and surplus is sold at the market, which contribute to the income of poor households. The technology is useful for increasing production for home consumption and market.

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?
In some cases there are water leeches available in the water body. Therefore, people become afraid of preparing floating beds.	People polish diesel/kerosene oil in their body before preparation of floating beds to protect them from attack of leeches.
In some cases, water hyacinths are not available locally, consequently farmers face difficulties to prepare floating beds in distant places. Further challenges are the guarding/security of the gardens, the time consuming establishment of the beds.	Introduce and prepare floating gardens by supporting whole groups instead of individual famers.
Wave action and local streams may drift away the floating beds	Use bamboo pole to fix floating beds and prevent that they are floating away.

Pontos fracos/vantagens/riscos na visão do compilador ou de outra pessoa capacitada	Como eles podem ser superados?
Non-availability of adequate quantity of water hyacinth in same place every year.	Prepare bed in the places where water hyacinth are available and then move the beds in to the desired locations.
Due to heavy wave action or heavy water flow, floating beds could be broken/destroyed.	Prepare small size beds.
Lack of awareness and willingness of farmers to practice this technology.	Organise meeting, training, demonstration, and learning visit.

7.1 Métodos/fontes de informação

7.2 Referências às publicações disponíveis

Título, autor, ano, ISBN:

A learning documentary on Floating Vegetable Garden, HELVETAS Swiss Intercooperation, March-2012, ISBN: 978-984-33-5313-9

Disponível de onde? Custos?

https://youtu.be/AK_qTm2pUsw

Título, autor, ano, ISBN:

Innovative Vegetable Cultivation, HELVETAS Swiss Intercooperation, 2012

Disponível de onde? Custos?

https://youtu.be/lhiraDjPymU

Título, autor, ano, ISBN:

Piloting Schemes Systematic Integration of DRR in LEAF - December 2010

Disponível de onde? Custos?

https://assets.helvetas.org/downloads/drr_capex.pdf

7.3 Links para informação relevante que está disponível online

Título/ descrição:

A learning documentary on Floating Vegetable Garden, HELVETAS Swiss Intercooperation, March-2012, ISBN: 978-984-33-5313-9

URL:

https://youtu.be/AK_qTm2pUsw

Título/ descrição:

Innovative Vegetable Cultivation, HELVETAS Swiss Intercooperation, 2012

URL:

https://youtu.be/lhiraDjPymU

Título/ descrição:

Islam and Atkins, 2007. Indigenous floating cultivation: a sustainable agricultural practice in the wetlands of Bangladesh. Development in Practice 17:130-136.

URL:

https://www.jstor.org/stable/25548185?seq=1#page_scan_tab_contents

Título/ descrição:

Irfanullah et al., 2008. Introduction of floating gardening in the northeastern wetlands of Bangladesh for nutritional security and sustainable livelihood. Renewable Agriculture and Food Systems 23:89-96

URL:

http://nopr.niscair.res.in/bitstream/123456789/11064/1/IJTK%2010(1)%2031-38.pdf

Título/ descrição:

Irfanullah et al., 2011. Floating gardening in Bangladesh: a means to rebuild lives after devastating flood. Indian Journal of Traditional Knowledge 10:31-38.

URL:

http://nopr.niscair.res.in/bitstream/123456789/11064/1/IJTK%2010(1)%2031-38.pdf

Título/ descrição:

Irfanullah, 2013. Floating Gardening: a local lad becoming a climate celebrity? Clean Slate 88:26-27.

URL:

http://floodresilience.net/solutions/item/floating-gardening-a-local-lad-becoming-a-climate-celebrity