1.2 Coordonnées des personnes-ressources et des institutions impliquées dans l'évaluation et la documentation de la Technologie

Nom du projet qui a facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Resilient Mountain Solutions Initiative, ICIMOD (RMS initiative)

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de la Technologie (si pertinent)

ICIMOD International Centre for Integrated Mountain Development (ICIMOD) - Népal

1.3 Conditions relatives à l'utilisation par WOCAT des données documentées

Le compilateur et la(les) personne(s) ressource(s) acceptent les conditions relatives à l'utilisation par WOCAT des données documentées:

Oui

1.4 Déclaration sur la durabilité de la Technologie décrite

Est-ce que la Technologie décrite ici pose problème par rapport à la dégradation des terres, de telle sorte qu'elle ne peut pas être déclarée comme étant une technologie de gestion durable des terres?

Non

2.1 Courte description de la Technologie

Définition de la Technologie:

A soil cement water collection pond to store rainwater, runoff and household kitchen waste water free from soap and detergent for supplemental irrigation purpose during dry seasons.

2.2 Description détaillée de la Technologie

Description:

In Nepal's mid-hills mountain farmers face problems during dry seasons to irrigate their fields, as they entirely depend on rain- water. Soil cement water collection pond are ideal to tackle this challenge, as they can capture excess rainfall during monsoon, which is later available during prolonged seasonal water shortage.

The Resilient Mountain Village (RMV) project of ICIMOD together with its local partner, CEAPRED tested and demonstrated soil cement ponds with a capacity of 24000 liters. The conservation ponds were used for irrigating high value off-season horticultural crops (vegetables, fruit, and spices). These crops were irrigated with drip irrigation and micro sprinklers. The ponds were fed from rainwater, upland springs and taps, and household wastewater from kitchen free from soap and detergent. They were established during the dry season during 3 months. They were prepared by selecting a suitable site with a sufficient catchment; mapping out the area and depth of the pond; digging out the soil; removing protruding stones and roots; and compacting and smoothing the sides and bottom of the pond. Then gravel and pebbles were used for the base and the floor and side walls were leveled off. Initial mixture of soil, sand and cement (3:3:1) was applied to roughly plaster all the side walls and gravel was mixed in the mixture while plastering the floor. The following day, the roughly plastered pond was watered and was covered with wet jute sack to keep it moist. This was continued for 3-4 days. Then again a second mixture of soil, sand and cement (2:2:1) was applied to smoothly plaster the floor and side walls. The pond was watered for the next 3-4 days and was covered with wet jute sacks. Around 4-5 days after the second plaster, the pond was filled with water. For safety, pond was enclosed with a gabion wire/ bamboo fence (or using any locally available material). The total establishment cost for a soil cement pond with 24000 liters capacity was USD 311.

The main maintenance activity was to maintain the gabion wire/bamboo fence to prevent livestock and people from entering the pond, and to remove the sediment that accumulates in the pond. The sediment has to be removed once a year carefully by hand and if cracks occur, it should be sealed with a mixture of soil, sand and cement (3:3:1). The total annual maintenance cost for 24000 liters soil cement tank was USD 68.

This technology has somehow helped small-land holding farmers to irrigate their rain-fed land during dry months which has increased the crop production and their income as well.

Land user's particularly liked that their production increased and that they were able to grow up to three crops per year. Trough this the farmers were able to diversify their crops, and they were less vulnerable to the dry season. In addition, soil cement water ponds are more efficient than plastic-lined conservation ponds which are easily damaged by rats. Although cost effective, the fixed price for this technology is quite high, particularly for smallholder farmers. To lessen this financial burden, local governments can provide subsidies to women and marginalized groups interested in this technology. Self-help groups with a revolving grants system would help expand the use of these ponds and ensure sustained use across Nepal.

2.3 Photos de la Technologie

2.5 Pays/ région/ lieux où la Technologie a été appliquée et qui sont couverts par cette évaluation

2.6 Date de mise en œuvre de la Technologie

Si l'année précise est inconnue, indiquez la date approximative: :

• il y a moins de 10 ans (récemment)

2.7 Introduction de la Technologie

Spécifiez comment la Technologie a été introduite: :

• par le biais de projets/ d'interventions extérieures

Commentaires (type de projet, etc.) :

ICIMOD demonstrated this technology through the program of Resilient Mountain Village (RMV) with the help of its implementing local partner, The Center for Environmental and Agricultural Policy Research, Extension and Development (CEAPRED) in its pilot project sites in Kavrepalanchok district.

3.1 Principal(aux) objectif(s) de la Technologie

• améliorer la production

• Improve water availability during dry seasons

3.2 Type(s) actuel(s) d'utilisation des terres, là où la Technologie est appliquée

Les divers types d'utilisation des terres au sein du même unité de terrain: :

Non

3.3 Est-ce que l’utilisation des terres a changé en raison de la mise en œuvre de la Technologie ?

Est-ce que l’utilisation des terres a changé en raison de la mise en œuvre de la Technologie ?

• Non (Passez à la question 3.4)

3.4 Approvisionnement en eau

Approvisionnement en eau des terres sur lesquelles est appliquée la Technologie:

• pluvial

3.5 Groupe de GDT auquel appartient la Technologie

• récupération/ collecte de l'eau
• gestion de l'irrigation (incl. l'approvisionnement en eau, le drainage)

3.6 Mesures de GDT constituant la Technologie

3.7 Principaux types de dégradation des terres traités par la Technologie

3.8 Prévention, réduction de la dégradation ou réhabilitation des terres dégradées

Spécifiez l'objectif de la Technologie au regard de la dégradation des terres:

• réduire la dégradation des terres

4.1 Dessin technique de la Technologie

4.2 Informations générales sur le calcul des intrants et des coûts

Spécifiez la manière dont les coûts et les intrants ont été calculés:

• par superficie de la Technologie

Indiquez la monnaie utilisée pour le calcul des coûts:

• dollars américains

4.3 Activités de mise en place/ d'établissement

	Activité	Calendrier des activités (saisonnier)
1.	Select a preferably stable ground with a sufficient catchment area	dry months
2.	Measure the area to be irrigated and estimate the size of the pond	dry months
3.	Measure and mark out the pond	1st day
4.	Dig out the soil to the pre-determined depth and remove protruding stones and roots	1st day
5.	Compacting and smoothing the sides and bottom of the pond	2nd day
6.	Apply initial mixture of soil, sand, cement (3:3:1) to roughly plaster all the the side walls and mix gravel in the mixture while plastering the floor.	2nd day
7.	The following day, the roughly plastered pond should be watered and covered with wet jute sack to keep it moist. This should be continued for 3-4 days.	3rd day
8.	Apply a second mixture of soil, sand, and cement (2:2:1) to smoothly plaster the floor and side walls.	5th day
9.	Water the pond for the next 3-4 days and cover with wet jute sack.	8th day
10.	Around 4-5 days of second plaster, fill the pond with water.	13th day
11.	For safety, the pond can be enclosed with gabion wire/ bamboo fence (or using other locally available materials)	14th day

4.4 Coûts et intrants nécessaires à la mise en place

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	Dig out pond	persons/unit	7,0	5,68	39,76	100,0
Main d'œuvre	Stone soiling	persons/unit	1,0	8,74	8,74
Main d'œuvre	Cementing	persons/unit	10,0	8,74	87,4
Main d'œuvre	Wiring	persons/unit	2,0	8,74	17,48
Equipements	Spade	piece	3,0	2,0	6,0	100,0
Equipements	Measuring tape	piece	2,0	1,0	2,0	100,0
Equipements	Shovel	piece	3,0	7,0	21,0	100,0
Equipements	Hammer	piece	3,0	4,0	12,0	100,0
Equipements	Cement mixing iron pan	piece	2,0	3,0	6,0	100,0
Equipements	Trowel	piece	3,0	2,0	6,0	100,0
Matériaux de construction	Sand	bags	24,0	0,87	20,88
Matériaux de construction	Cement	bags	6,0	7,43	44,58
Matériaux de construction	Water proofing liquid	bottle	1,0	2,62	2,62
Matériaux de construction	Gabion wire sheets	sq.ft	120,0	0,31	37,2
Coût total de mise en place de la Technologie					311,66
Coût total de mise en place de la Technologie en dollars américains (USD)					311,66

Si le coût n'est pas pris en charge à 100% par l'exploitant des terres, indiquez qui a financé le coût restant:

The Center for Environmental and Agricultural Policy Research, Extension and Development (CEAPRED) covered the remaining cost

Commentaires:

Duration of establishment phase: 3 month(s)

4.5 Activités d'entretien/ récurrentes

	Activité	Calendrier/ fréquence
1.	Maintain and repair wire fence to prevent livestock and humans from entering the pond	once in a year
2.	Removing accumulated sediment once a year carefully by hand	dry months/once in a year

4.6 Coûts et intrants nécessaires aux activités d'entretien/ récurrentes (par an)

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	Clean and maintaining the pond	persons/unit	3,0	5,68	17,04	100,0
Main d'œuvre	Maintain and repair wire fence	persons/unit	2,0	7,0	14,0	100,0
Matériaux de construction	Gabion wire	sq.ft	120,0	0,31	37,2	100,0
Coût total d'entretien de la Technologie					68,24
Coût total d'entretien de la Technologie en dollars américains (USD)					68,24

Commentaires:

The cost given above is for unit technology having 24000 liters capacity as in 2020.

4.7 Facteurs les plus importants affectant les coûts

Décrivez les facteurs les plus importants affectant les coûts :

Cost of cement and sand
Members of a household contributed as labour in all sites.

5.1 Climat

5.2 Topographie

Indiquez si la Technologie est spécifiquement appliquée dans des:

• non pertinent

5.3 Sols

Si disponible, joignez une description complète du sol ou précisez les informations disponibles, par ex., type de sol, pH/ acidité du sol, capacité d'échange cationique, azote, salinité, etc.

Soil fertility is medium

Soil drainage / infiltration is good

Soil water storage capacity is medium

5.4 Disponibilité et qualité de l'eau

La salinité de l'eau est-elle un problème? :

Non

La zone est-elle inondée?

Non

Commentaires et précisions supplémentaires sur la qualité et la quantité d'eau:

Water source is mainly spring.
More in rainy season (June- September), less in April/May; source: spring

5.5 Biodiversité

Commentaires et précisions supplémentaires sur la biodiversité:

Nepal harbors 3.2 % and 1.1 % world's known flora and fauna respectively despite occupying only 0.1 % of global area. Particularly, beta diversity is high in Nepal (BCN and DNPWC, 2011).

5.6 Caractéristiques des exploitants des terres appliquant la Technologie

Indiquez toute autre caractéristique pertinente des exploitants des terres:

Land users applying the Technology are mainly common / average land users

Population density: 154 - 453 persons per km2 ( Census, 2011)

Annual population growth : 2% - 3%

Among 100% land users, 80% of the land users are average wealthy and own 90% of the land (ranked by land users). 20% of the land users are poor and own 10% of the land.

Off-farm income specification:
Occasional opportunities for off-farm income present themselves in the form of daily labour wages.
Due to loss of farmland and increasing urbanization and loss of farmlands many people are switching from agriculture to non-farm occupations such as working in brick kilns.
The opening of the BP Highway has led to the establishment of many hotels and restaurants and the development of local market places such as Bhakundebesi.
Most local businesspersons are small entrepreneurs with limited investment capacity.
Some households’ members receive regular salaries, whilst an increasing number of Nepalis are working in India, the Middle East, Malaysia, and elsewhere and sending remittance incomes home.

Market orientation of production system: Vegetables- commercial


Level of mechanization: Manual labor consists of planting, irrigation , harvesting, while field preparation is carried out by animals, also machines but just in valley bottom.

5.7 Superficie moyenne des terres utilisées par les exploitants des terres appliquant la Technologie

5.8 Propriété foncière, droits d’utilisation des terres et de l'eau

Propriété foncière:

• individu, avec titre de propriété

Droits d’utilisation des terres:

• individuel

Droits d’utilisation de l’eau:

• accès libre (non organisé)
• communautaire (organisé)

Est-ce que les droits d'utilisation des terres sont fondés sur un système juridique traditionnel?

Oui

5.9 Accès aux services et aux infrastructures

Commentaires:

Health facilities: There are nine health facilities centre in Namobuddha municipality, Kavre. The main health facilities are Methinkot Hospital, which is a 15-bed district level government hospital, and Dapcha Health Center, which is run by Kathmandu.

Education: There are eight academic institutes for higher studies ( higher secondary schools and colleges). The main academic institutes are:
Dapcha Krishna
Multiple Campus (community), Dapcha;
Janahit Secondary School (public), Khanalthok
Janak Multiple Campus (community), Methinkot
Janak Secondary School (public), Methinkot
Kanpur Campus(community), Kanpur and
Kanpur Secondary School
(public), Kanpur.

Employment ( off-farm): Due to loss of farmlands and increasing urbanization, many people are switching from agriculture to non-farm occupations such as working in brick kilns. The opening of the BP Highway has led to the establishment of many hotels and restaurants and the development of local market places such as Bhakundebesi. Most local businesspersons are small entrepreneurs with limited investment capacity.

Market: Bhakundebesi is the emerging marketplace due to its strategic location in the middle of the municipality astrid the BP Highway. Most local business activities in the municipality take place in Bhakundebesi bazaar. It is a major place for local people to purchase consumer goods.

Energy
Cooking fuel:
In 2011, 88% of households mainly used firewood for cooking, followed by liquefied petroleum gas (LPG) (4.92%). In Puranogaun Dapcha, almost all households (99.8%) relied on firewood for cooking. LPG was relatively popular in Dapcha Chatrebhanjh (10.3%) and Khanalthok (11.5%). Less than 6% of households used biogas for cooking, with its use relatively high in Mathurapati Fulbari (19.3%) and Methinkot (15.9%) (CBS, 2011).

Lighting :
93% of households used electricity for lighting while 5% depended on kerosene. Dependency on kerosene was relatively high in Khanalthok (8.1%) and Methinkot (7.4%). There was little solar lighting except for in Khanalthok where 3% of households relied on it (CBS, 2011).

Roads and Transportation:
Namobuddha Municipality is easily accessible by motorable road from neighboring areas via the BP Highway, which splits the municipality into almost two equal halves . The highway, which runs from Banepa to Bardibas in the Terai, is the shortest route from the Kathmandu Valley to the eastern hills and Terai. The limited width of the road and its sharp bends mean that public transportation along the BP Highway is mostly by small buses and jeeps.

Drinking water and Sanitation:
In 2011, about 60% of households had access to taps or piped water with accessibility varying across the municipality. While about 80% of PuranogauDapcha households had taps or piped water, only 37.5% of households in Simalchour Syampati enjoyed such services. Other sources of drinking water were covered wells (12.3%), uncovered wells (20.2%) and water spouts (6.3%). Methinkot (40.8%) and Simalchour Syampati (31.4%) residents were most reliant on uncovered wells. Covered wells served sizeable household populations in Dapcha Chatrebhanjh (35.3%) and Simalchour Syampati (23%) (CBS, 2011).

Toilet facilities: In 2011, about 63% of households had accessto toilet facilities, with about 40% overall having flushtoilets. The least toilet coverage was in Kanpur Kalapaniand Simalchour Syampati VDCs where 63% and 58% ofhouseholds respectively did not have their own toilets. Almost all households in Puranogaun Dapcha had their own toilets, mostly flush toilets (CBS, 2011).


Waste Management: – Namobuddha is in the early phase of urbanization with no systematic waste management.The Municipality Office is searching for a landfill site.

6.1 Impacts sur site que la Technologie a montrés

Impacts socio-économiques

Production

Disponibilité et qualité de l'eau

Revenus et coûts

Impacts socioculturels

Impacts écologiques

Sols

6.2 Impacts hors site que la Technologie a montrés

6.3 Exposition et sensibilité de la Technologie aux changements progressifs et aux évènements extrêmes/catastrophes liés au climat (telles que perçues par les exploitants des terres)

Changements climatiques progressifs

Changements climatiques progressifs

	Saison	Augmentation ou diminution	Comment la Technologie fait-elle face à cela?
températures annuelles		augmente	pas connu

Extrêmes climatiques (catastrophes)

Catastrophes météorologiques

	Comment la Technologie fait-elle face à cela?
pluie torrentielle locale	bien
tempête de vent locale	bien

Catastrophes climatiques

	Comment la Technologie fait-elle face à cela?
sécheresse	modérément

Catastrophes hydrologiques

	Comment la Technologie fait-elle face à cela?
inondation générale (rivière)	pas bien

Autres extrêmes climatiques (catastrophes)

autre (précisez)	Comment la Technologie fait-elle face à cela?
reducing growing period	bien

6.4 Analyse coûts-bénéfices

Quels sont les bénéfices comparativement aux coûts de mise en place (du point de vue des exploitants des terres)?

Quels sont les bénéfices comparativement aux coûts d'entretien récurrents (du point de vue des exploitants des terres)?

6.5 Adoption de la Technologie

• > 50%

De tous ceux qui ont adopté la Technologie, combien d'entre eux l'ont fait spontanément, à savoir sans recevoir aucune incitation matérielle, ou aucune rémunération? :

• 11-50%

Commentaires:

Till now 24 land user families of Namobuddha Municipality have adopted this technology.
Among 24 land user families, 18 have adopted this technology with external material support through Resilient Mountain Village (RMV) project and 6 land users families have adopted this technology without any external support.

Comments on spontaneous adoption (Through survey results) : There is no trend towards spontaneous adoption of the technology because this technology is quiet expensive, compared to plastic- lined conservation pond.

6.6 Adaptation

La Technologie a-t-elle été récemment modifiée pour s'adapter à l'évolution des conditions?

Non

6.7 Points forts/ avantages/ possibilités de la Technologie

Points forts/ avantages/ possibilités du point de vue de l'exploitant des terres
Water stored in this tank is sufficient to irrigate 2-3 ropani (1 ropani = 508 sq.m.) land in one season.
This technology can be enhanced by sharing the advantages of this technology with large number of people.
It is more sustainable and efficient than plastic-lined conservation pond.

Points forts/ avantages/ possibilités du point de vue du compilateur ou d'une autre personne ressource clé
Good income can be achieved even from a small piece of land by sales of vegetables in the dry season .
These ponds are fed with rainwater and household kitchen wastewater free from soap and detergent and from springs and taps. The pond water was mainly used for micro irrigation including drip irrigation and micro-sprinkler.
It helps to promote the use of other water conserving techniques like mulching when using the harvested water.
It has reduced the dependence on large scale water supply schemes.
How can they be sustained / enhanced? Harvest all possible sources of water.

6.8 Faiblesses/ inconvénients/ risques de la Technologie et moyens de les surmonter

Faiblesses/ inconvénients/ risques du point de vue de l’exploitant des terres	Comment peuvent-ils être surmontés?
Soil cement tank is expensive for poor farmers.	Subsidized cost for poor farmers.
It is unsafe for small children.	Protection structures should be constructed.

Faiblesses/ inconvénients/ risques du point de vue du compilateur ou d'une autre personne ressource clé	Comment peuvent-ils être surmontés?
Cement and sand rate is very expensive for poor farmers.	Make it available in the local market at a subsidized cost for poor farmers.
The ponds attract insects, mainly mosquitoes, that cause disease; and the ponds are unsafe for small children.	Regularly clean the pond and fence them.

7.1 Méthodes/ sources d'information

7.2 Références des publications disponibles

Titre, auteur, année, ISBN:

ICIMOD (2018) Building Mountain Resilience: Solutions from the Hindu Kush Himalaya. Kathmandu: ICIMOD

Disponible à partir d'où? Coût?

ICIMOD

Titre, auteur, année, ISBN:

SCWMC (2004) Soil Conservation and Watershed Management Measures and Low Cost Techniques. Kathmandu: Government of Nepal, Soil Conservation and Watershed Management Component - Department of Soil Conservation and Watershed Management

Disponible à partir d'où? Coût?

DSCWM, Kathmandu

7.3 Liens vers les informations pertinentes en ligne

Titre/ description:

Namobuddha Municipality, Nepal Situation Analysis for Green Municipal Development, 2018

URL:

https://gggi.org/site/assets/uploads/2018/07/GGGI_GMD-Assessment_Namobuddha.pdf

Titre/ description:

Farmers in Kavre reaping benefits from soil cement tanks, 2021

URL:

https://www.icimod.org/article/farmers-in-kavre-reaping-the-benefits-of-soil-cement-tanks/