UNCCD

Gharat (Water Mills) - A Traditional Eco-friendly Practice [Inde]

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Entité concernée: India

État complet : 69%

Informations générales

Informations générales

Titre des bonnes pratiques:

Gharat (Water Mills) - A Traditional Eco-friendly Practice

Pays:

Inde

Entité concernée:

India

Spécifications

Section 1. Contexte de la meilleure pratique : conditions du cadre (environnement naturel et humain)

Brève description de la meilleure pratique

'Gharats' or water flour mills run on a stream's kinetic energy to turn the shaft of the grinding mill. The water is diverted from the stream or river along a channel or canal to the water wheel. The force of the water's movement drives the blades of a wheel or turbine, which in turn rotates an axle that drives the mill's other machinery. The water leaves the wheel through the continuation of the channel. This may in-turn feed another mill. The passage of water is controlled by sluice gates that allow maintenance.
The project undertook the task of rebuilding and rejuvenating these watermills as  these Gharats had low efficiencies ranging from 10%- 15% only.
Under the project this abundant and renewable waterpower resource was exploited more effectively with appropriate and modernized equipment, and concrete structures which required less maintenance cost every year.  These changes increased the processing capacity of the Gharats from 5-6 kg to 10-15 kg of wheat per hour. This played a key role in driving sustainable economic development in the hilly regions Improving the food quality of the milled cereals available to the inhabitants of this project area was another major concern. We know that the flour from these water mills is rather coarse as compared with the ones from the power mills of the plains and has more roughage (fibre content) hence, considered healthy. Operationalization of large number of Gharats is a indicator that eco-system services have improved (water flow).

Site

Nainital and  Augustyamuni, Divisions of Uttarakhand|

Brève description de l’environnement naturel du site

Warm temperate conditions prevail in the Middle Himalayan valleys, with summer temperatures usually hovering about the mark of 25° C and cooler winters. Cool temperate conditions dominate the higher areas of the Middle Himalayas, where the summer temperatures are usually around 15 to 18° C and winters drop below the freezing point.|
In the north, the soil ranges from gravel (debris from glaciers) to stiff clay. Brown forest soil—often shallow,
gravelly, and rich in organic content—is found farther to the south.
There are three distinct topographical belts - the Shivaliks in the sub Himalayan tract (300-600m amsl), the Himachal ranges in the lower Himalayan region (1,500 2,700m amsl), and the Himadri ranges in the upper Himalayan region (4,800-6,000m amsl). The Garhwal and Kumaon regions of the State together form approximately 350km of the 2,500km long Himalayan range. The middle hill region that lies between 1,800-3,000m is mostly forested, thinly populated and  has poor water supply.|

Conditions socio-économiques dominantes des personnes vivant sur ou à proximité du site

Main income sources- are through sale of farm produce, livestock products, livestock and other non farm based activities.   |

Sur la base de quel critère/indicateur(s) (sans relation avec la stratégie) la pratique proposée et technologie correspondante ont-elles été considérées comme « meilleures »?

• Revival of traditional practices
• Eco friendly.
• Decrease in fuel consumption for grinding purposes.
• Increase in Income of local people.

Section 2. Problèmes abordés (causes directes et indirectes) et objectifs de la meilleure pratique

Principaux problèmes abordés par la meilleure pratique

Time saving |Energy efficient  

Décrivez les principaux problèmes liés à la dégradation des terres abordés par la meilleure pratique

The technology involves diverting water from the stream or river along a channel or canal to the water wheel. The water leaves the wheel through the continuation of the channel thus the flow of water is channelized which helps to check soil erosion. The channelized water is used for irrigation purposes which helps to increase agriculture productivity.

Précisez les objectifs de la meilleure pratique

To revive the traditional practices which are eco friendly and a source of  alternate renewable energy.|Health benefits- the flour from these water mills is rather coarse as compared with the ones from the power mills, thus health benefits to local people|Livelihood option- The watermills would be used to harness the natural water flow for grinding purposes which would provide an additional source of income to the local people.

Section 3. Activités

Brève description des principales activités, par objectif

Rejuvenation of gharats – These Gharats were rebuild and rejuvenated to enhance their grinding capacity and for health and hygiene purposes.|Promoting use of technology- Local people  had to be encouraged for using this technology as a livelihood option.
Awareness generation-People were made aware about the usage of locally available alternate renewable energy sources and significance of this on the ecosystem. |Organizing into self help groups (SHG’s)-Local people were organized into self help groups for ease of mobilization, social interactions and economic interactions for sustainable use of renewable energy resources and revival of traditional practices.|Promoting use of technology- The technology of floor grinding using gharats is well known to people of Uttarakhand. They had to be encouraged for enhanced usage of this technology.
Awareness generation- People were made aware about the benefits of using flour from these water mills as it is  coarse as compared with the ones from the power mills of the plains and has more roughage (fibre content) hence, more healthy. |Promoting use of watermills - People were motivated for using watermills for grinding purposes.

Brève description et caractéristiques techniques de la technologie

• 'Gharats' or water flour mills run on a stream's kinetic energy to turn the shaft of the grinding mill. The water is diverted from the stream or river along a channel or canal to the water wheel. The force of the water's movement drives the blades of a wheel or turbine, which in turn rotates an axle that drives the mill's other machinery. The water leaves the wheel through the continuation of the channel. This may in-turn feed another mill. The passage of water is controlled by sluice gates that allow maintenance.
• These Gharats are popular due to its simple and cost effective mechanism, besides this they are eco-friendly. After slight modifications in the technology, these gharats are now producing more healthier and coarser flour. Maintenance cost of Gharats has also reduced very much and their efficiency has increased from 5-6 kg. to 10-12 kg./hour.

Section 4. Institutions/acteurs impliqués (collaboration, participation, rôle des parties prenantes)

Nom et adresse de l’institution développant la technologie

Watershed Management Directorate Uttarakhand|Forest Colony, Indiranagar
Dehradun

La technologie a-t-elle été développée en partenariat ?

Non

La participation des parties prenantes locales, y compris des OSC, a-t-elle été recherchée au cours du développement de la technologie ?

Non

Précisez le rôle des parties prenantes ci-dessus dans la conception, l’introduction, l’utilisation et la maintenance de la technologie, le cas échéant.

N.A.

La population vivant sur ou à proximité du site a-t-elle été impliquée dans le développement de la technologie?

Non

Analyses

Section 5. Contribution à l’impact

Décrivez les impacts sur site (les deux principaux impacts par catégorie)

Increase in income of local people.
Controlling land degradation
Improved health of people

Décrivez les deux principaux impacts hors site (dans les environs)

N.A.

Impact sur la biodiversité et le changement climatique

Décrivez:

Promotes use of alternate renewable energy resources like hydro power thus decreasing the use of fossil fuels.

Section 6. Adoption et caractère transposable

La technologie a-t-elle été diffusée/introduite sur d’autres sites?

La technologie a-t-elle été diffusée/introduite sur d’autres sites? :

Oui

Pouvez-vous identifier les trois principales conditions ayant favorisé la réussite de la meilleure pratique/technologie présentée?

Motivated local People- Local people for want of livelihood options readily adopted the practice as the basic infrastructure and the technical knowhow was already existing. People were organized into self help groups to promote the activity on a larger scale.
Availability of funds under the project facilitated rejuvenation of this age old practice.
Traditional practice of using Gharats – In Uttarakhand people since ages have been using water energy to run these gharats for grinding cereals however it was on decline due to lack of financial resources.

Réplication

Selon vous, la meilleure pratique/technologie proposée peut-elle reproduite, y compris avec un certain degré d’adaptation?

Oui

Si oui, à quel niveau?
  • Sous-national

Section 7. Leçons tirées

Liées aux ressources humaines

Awareness generation leads to change in the mind set of local people. |Organizing the people into self help groups ensures sustainability of the activity. |Capacity building facilitates the rural people in accounting and record keeping.

Liées aux aspects techniques

Simple Technology helped in adaptation. |Easy operation and maintenance cost helps in acceptability of the technique. |As the machine runs on hydro power so it is eco friendly which thus reduces the cost of production

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