1.2 Detalles de contacto de las personas de referencia e instituciones involucradas en la evaluación y la documentación de la Tecnología

1.3 Condiciones referidas al uso de datos documentados mediante WOCAT

¿Cuándo se compilaron los datos (en el campo)?

09/07/2014

El compilador y la/s persona(s) de referencia claves aceptan las condiciones acerca del uso de los datos documentados mediante WOCAT:

Sí

1.4 Declaración de la sostenibilidad de la Tecnología descrita

¿La Tecnología aquí descrita resulta problemática en relación a la degradación de la tierra, de tal forma que no puede considerársela una tecnología sostenible para el manejo de la tierra?

No

2.1 Breve descripción de la Tecnología

Definición de la Tecnología:

Home gardens, containing tree, shrub, herbs, vine, tuber layers as well as poultry, produce food for household consumption as well as an additional income.

2.2 Descripción detallada de la Tecnología

Descripción:

Home gardens are a traditional setting in Cambodia, where they appear around nearly each house. All the seven layers of production occur, with a tree canopy, lower trees, shrubs, herbs, a soil cover, roots and tubers as well as a climbing layer, but not all layers can be found in each garden. The overlapping production allows a high productivity on a small area, and the trees/canopy provide a comfortable microclimate for both humans and livestock. The products of the home gardens are consumed by the family, surplus is given to neighbours or sold, and provide an additional income. One or more of the crops are produced in bigger amounts to serve as a cash crop. It can be coconuts close to the city, mangoes that are processed, sugarcane or vegetables like winged beans for the market, bamboo for handicrafts or constructions. Poultry is free ranging in the home gardens, thus when short annual plants like water spinach are planted they are protected with bamboo or net fences. The poultry, mostly chicken, but as well ducks, Muscovy ducks, and others, forages in the waste and eats bugs and worms.

The home gardens are planted to produce food, to provide additional income source and assure a comfortable microclimate. Medicinal plants, as well as plants for handicrafts like bamboo, are grown in the home gardens. Due to a lack of labour availability on the farms, the gardens are only poorly maintained. Some NGOs try to implement the production of more annual crops in the home gardens, but fail due to this constraint and the fact that leafy vegetables are collected from the wild during the wet season.

When a new house is built, canopy trees like coconuts or sugar palms are planted, sometimes following a square pattern, with other trees in between. In other gardens, no pattern can be found, as trees are planted more randomly, or left growing on their own. The seedlings growing in and around trash piles are transplanted to more suitable places, sometimes seedlings from grafted varieties are bought from the market.
Mainly annual crops, like yam, are fertilized with cow manure or compost before the sowing. Due to a lack of irrigation water, most farmers only grow annuals during the wet season. During the dry season, the vegetables are bought from other provinces or countries.

The analysed area is flat (slope < 2%), tropic (dry and wet season), and the soils are mostly sandy or loamy. The soils on the fields contain little organic matter (low soil fertility, acidification, small amount of cattle, area has been deforested a long time ago) and the groundwater table is rather high (2 m below soil level during the dry season, on the surface during the wet season).
Due to climate change, the rainfalls are more erratic, temperatures rise and droughts are more recurrent. Rice is the predominant crop grown in the area, since it serves as staple food (mix subsistence and commercial activities). Rice is often grown in monocultures and harvested once a year. Once the rice is harvested (dry season), some farmer release cattle to the paddy fields to eat the straw and weeds.

As an addition to rice, most land users grow vegetable and fruits in home gardens (subsistence) and complement their income by producing handicrafts or through off-farm income / remittances from family members working in other places. Gathering of wild food (plants, animals, and mushrooms) is also of importance for the diet. The increasing migration rate (the young generation leaves the villages to work in the cities, garment industry or abroad) results in a decrease of available labour force in the area that has detrimental effects on the agricultural activities. Furthermore, the civil war in the 1970s (Khmer Rouge) led to the loss of agricultural knowledge that different NGOs try to re-establish.

2.3 Fotografías de la Tecnología

2.5 País/ región/ lugares donde la Tecnología fue aplicada y que se hallan comprendidos por esta evaluación

2.6 Fecha de la implementación

Si no se conoce el año preciso, indique la fecha aproximada:

• hace más de 50 años atrás (tradicional)

2.7 Introducción de la Tecnología

Especifique cómo se introdujo la Tecnología:

• como parte de un sistema tradicional (> 50 años)

Comentarios (tipo de proyecto, etc.):

There have always been home gardens. There is a lot of research carried out, with species and varieties spreading among farmers. Some NGOs also try to implement the production of more annual vegetables in the home gardens, but they are abandoned as soon as the NGOs leave.

3.1 Propósito(s) principal(es) de la Tecnología MST

• mejorar la producción
• crear impacto económico benéfico

3.2 Tipo(s) actuales de uso de la tierra donde se aplica la Tecnología

Comentarios:

Major land use problems (compiler’s opinion): Overgrazing, low soil fertility, sandy soils, monocultures, soil left bare after ploughing, wind and dust storms, climate change.
Major land use problems (land users’ perception): Lack of water in the dry season, low soil fertility.
Type of cropping system and major crops comments: Cash and food crops depend highly on personal preferences.

3.3 Información adicional sobre el uso de tierras

Provisión de agua para la tierra donde se aplica la Tecnología:

• mixta de secano – irrigada

Especifique:

Longest growing period in days: 210, Longest growing period from month to month: June to December

3.4 Grupo MST al que pertenece la Tecnología

• agroforestería
• apicultura, acuacultura, avicultura, cunicultura, sericicultura, etc.
• jardines domésticos

3.5 Difusión de la Tecnología

Especifique la difusión de la Tecnología:

• distribuida parejamente sobre un área

Si la tecnología se halla difundida homogéneamente en un área, indique el área aproximada que cubre:

• 10-100 km2

Comentarios:

There is a smooth transition between home gardens and orchards, as well as between home gardens and commercial garden. Thus a quantification of the area is difficult. But around 10 % of the village areas are used as home gardens.

3.6 Medidas MST que componen la Tecnología

Comentarios:

Type of vegetative measures: scattered / dispersed

3.7 Principales tipos de degradación del suelo encarados con la Tecnología

Comentarios:

Main causes of degradation: soil management (Soil left bare after ploughing), crop management (annual, perennial, tree/shrub) (Monocultures of annual crops (rice))
Secondary causes of degradation: overgrazing (Uncontrolled grazing on fallow fields), change in temperature (More hot days, climate change), wind storms / dust storms (Human induced dust storms, wind storms due to climate change.), droughts (Climate change), labour availability (High migration rates), education, access to knowledge and support services (Agricultural knowledge lost during the Khmer Rouge Regime.), war and conflicts (Agricultural knowledge lost during the Khmer Rouge Regime.)

3.8 Prevención, reducción o restauración de la degradación del suelo

Especifique la meta de la Tecnología con relación a la degradación de la tierra:

• prevenir la degradación del suelo
• reducir la degradación del suelo

4.1 Dibujo técnico de la Tecnología

4.2 Especificaciones técnicas/ explicaciones del dibujo técnico

Example of a homegarden with different layers. Coconut palms present the top layer, different vines grow on trellises, bananas and a dwarf papaya form an intermediate layer, pumpkins form the soil cover and Canna represents the edible roots. Many edible wild plants would grow by themselves between the planted ones, and would also be consumed.

Kampong Chhnang
Date: 2014

Technical knowledge required for field staff / advisors: moderate
Technical knowledge required for land users: moderate (Each garden is different.)
Main technical functions: improvement of ground cover, increase in organic matter, increase in nutrient availability (supply, recycling,…), increase of biomass (quantity), promotion of vegetation species and varieties (quality, eg palatable fodder), spatial arrangement and diversification of land use
Secondary technical functions: water harvesting / increase water supply, improvement of water quality, buffering / filtering water, sediment retention / trapping, sediment harvesting, reduction in wind speed

Scattered / dispersed
Vegetative material: T : trees / shrubs, F : fruit trees / shrubs, C : perennial crops
Number of plants per (ha): n/a

Fruit trees / shrubs species: Sugar palm, coconut, mango, custard apple, bananas, limes.
Perennial crops species: Lemon grass, bamboo.
Other species: Eggplants, winged beans, yard long beans, pumpkins, cucumbers.

4.3 Información general sobre el cálculo de insumos y costos

4.4 Actividades de establecimiento

	Actividad	Tipo de medida	Momento
1.	Planting of the selected trees and other plants.	Vegetativas	Whole year

4.5 Costos e insumos necesarios para el establecimiento

	Especifique insumo	Unidad	Cantidad	Costos por unidad	Costos totales por insumo	% de los costos cubiertos por los usuarios de las tierras
Mano de obra	Labour		1,0	10,0	10,0	100,0
Equipo	Tools		1,0	20,0	20,0	100,0
Material para plantas	seeds		1,0	5,0	5,0	100,0
Material para plantas	seedlings		1,0	45,0	45,0	100,0
Costos totales para establecer la Tecnología					80,0

4.6 Actividades de establecimiento/ recurrentes

	Actividad	Tipo de medida	Momento/ frequencia
1.	Harvesting	Vegetativas	Depends on the size of the garden and the crops.
2.	Planting and fertilizing	Vegetativas	Depends on the farmers' preference for a given crop

4.7 Costos e insumos necesarios para actividades de mantenimiento/ recurrentes (por año)

	Especifique insumo	Unidad	Cantidad	Costos por unidad	Costos totales por insumo	% de los costos cubiertos por los usuarios de las tierras
Mano de obra	labour		1,0	60,0	60,0	100,0
Material para plantas	seeds		1,0	3,0	3,0	100,0
Indique los costos totales para mantenecer la Tecnología					63,0

Comentarios:

Machinery/ tools: Depending on the planted crops a knife, hatchet, spate and hoe.
The costs were calculated for 2014 for an “average” home garden that is newly established on a cleared land. It is not based on one case study, but on discussions with many farmers.

4.8 Factores más determinantes que afectan los costos:

Describa los factores más determinantes que afectan los costos:

The labour is the most expensive in the home gardens. This is problematic as the labour availability is decreasing due to high migration rates.

5.1 Clima

5.2 Topografía

5.3 Suelos

Si se halla disponible, adjunte una descripción completa de los suelos o especifique la información disponible, por ej., tipo de suelo, pH/ acidez de suelo, capacidad de intercambio catiónico, nitrógeno, salinidad, etc. :

Home gardens are used in the whole of Kampong Chhnang Province, even in urban areas.

5.4 Disponibilidad y calidad de agua

Comentarios y especificaciones adicionales sobre calidad y cantidad de agua:

Ground water table: during dry season
Availability of surface water: during dry season
Water quality: People use it for drinking after filtering or boiling.

5.5 Biodiversidad

Comentarios y especificaciones adicionales sobre biodiversidad:

Only degraded forests are in the area

5.6 Las características de los usuarios de la tierra que aplican la Tecnología

Indique otras características relevantes de los usuarios de las tierras:

Land users applying the Technology are mainly common / average land users
Population density: 10-50 persons/km2
Annual population growth: 0.5% - 1%
Off-farm income specification: Handicraft, remittances and factory work
Different crops are used as cash crops.

5.7 Área promedio de la tierra que pertenece a o es arrendada por usuarios de tierra que aplican la Tecnología

5.8 Tenencia de tierra, uso de tierra y derechos de uso de agua

Tenencia de tierra:

• comunitaria/ aldea
• individual, sin título

Derechos de uso de tierra:

• comunitarios (organizado)
• individual

Derechos de uso de agua:

• acceso abierto (no organizado)

Comentarios:

Land users have a title that is not recognized by the state

5.9 Acceso a servicios e infraestructura

6.1 Impactos in situ demostrados por la Tecnología

Impactos socioeconómicos

Producción

Disponibilidad y calidad de agua

Ingreso y costos

Impactos socioculturales

Impactos ecológicos

Ciclo de agua/ escurrimiento de sedimento

Suelo

Biodiversidad: vegetación, animales

Reducción de riesgos de desastres y riesgos climáticos

6.2 Impactos fuera del sitio demostrados por la Tecnología

6.3 Exposición y sensibilidad de la Tecnología al cambio climático gradual y a extremos relacionados al clima/ desastres (desde la percepción de los usuarios de tierras)

Cambio climático gradual

Cambio climático gradual

	Estación	tipo de cambios climáticos/ climas extremos	¿Cómo es que la tecnología soporta esto?
temperatura anual		incrementó	bien

Extremos (desastres) relacionados al clima

Desastres climatológicos:

	¿Cómo es que la tecnología soporta esto?
tormenta de lluvia local	bien
tormenta de viento	no se sabe

Desastres climatológicos

	¿Cómo es que la tecnología soporta esto?
sequía	bien

Desastres hidrológicos

	¿Cómo es que la tecnología soporta esto?
inundación general (río)	no se sabe

Otras consecuencias relacionadas al clima

Otras consecuencias relacionadas al clima

	¿Cómo es que la tecnología soporta esto?
periodo reducido de crecimiento	bien

6.4 Análisis costo-beneficio

¿Cómo se comparan los beneficios con los costos de establecimiento (desde la perspectiva de los usuarios de tierra)?

¿Cómo se comparan los beneficios con los costos de mantenimiento/ recurrentes (desde la perspectiva de los usuarios de tierra)?

6.5 Adopción de la Tecnología

• más de 50%

De todos quienes adoptaron la Tecnología, ¿cuántos lo hicieron espontáneamente, es decir, sin recibir incentivos/ pagos materiales?

• 90-100%

Comentarios:

Nearly every farm has at least a small patch of land with some fruits/trees/vegetables
100% of land user families have adopted the Technology without any external material support. As almost every farm has a small home garden the number of farmer families could not be specified. Nearly everybody already has a small home garden. Species and varieties are spontaneously spreading between farms

6.7 Fuerzas/ ventajas/ oportunidades de la Tecnología

Fuerzas/ ventajas/ oportunidades desde la perspectiva del usuario de la tierra
To produce fruits and vegetables for home consumption
Many types of fruits and vegetables can be produced on a small area of land, for home consumption and to sell the surplus
The home gardens are close to the houses, all the members of the family can help, and it is possible to look at the house at the same time

Fuerzas/ ventajas/ oportunidades desde la perspectiva del compilador o de otra persona de referencia clave
Increased food security and health
Diversification of income sources
Improvement of the soil fertility where farmers use compost

6.8 Debilidades/ desventajas/ riesgos de la Tecnología y formas de sobreponerse a ellos

Debilidades/ desventajas/ riesgos desde la perspectiva del usuario de la tierra	¿Cómo sobreponerse a ellas?
Lack of water for irrigation	Build household ponds
Insects are attracted to the crops, and spread when crops are grown together	Use integrated pest management
Prices sometimes drop for seasonal crops, like mangoes, and farmers cannot sell the crop	Process the fruits (e.g. drying) so they can be preserved

Debilidades/ desventajas/ riesgos desde la perspectiva del compilador o de otra persona de referencia clave	¿Cómo sobreponerse a ellas?
Lack of good varieties and selection, lack of knowledge about grafting fruit trees	Organize seed exchange, organize grafting and seed saving trainings
Lack of knowledge about fertilization, not all farmers know about the benefits of compost or manure. Leaves are often burned in the home gardens	Provide composting and mulching training

7.1 Métodos/ fuentes de información

7.2 Vínculos a las publicaciones disponibles

Título, autor, año, ISBN:

Kumar & Nair (Ed.). 2006. Tropical Homegardens. A time tested example of sustainable agroforestry. Dordrecht: Springer

¿Dónde se halla disponible? ¿Costo?

http://library.uniteddiversity.coop/Permaculture/Agroforestry/Tropical_Homegardens-A_Time_Tested_Example_of_Sustainable_Agroforestry.pdf