1.2 Контактные данные специалистов и организаций, участвующих в описании и оценке Технологии

Название организации (-ий), содействовавших документированию/оценке Технологии (если применимо)

Haramaya University (HU) - Эфиопия

1.3 Условия, регламентирующие использование данных, собранных ВОКАТ

Когда были собраны данные (на местах)?

30/04/2011

Составитель и ответственный(-ые) специалист(-ы) согласны с условиями, регламентирующими использование собранных ВОКАТ данных:

Да

2.1 Краткое описание Технологии

Определение Технологии:

Gully rehabilitation and hill stabilization with Jatropha hedges.

2.2 Подробное описание Технологии

Описание:

In the area around Bati in Ethiopia, Jatropha is used to stabilize hills ore to rehabilitate gullies. The technology was introduced during the last decade by local farmers on their plots. The advantage of Jatropha against other shrubs is that it is poisonous and therefore not browsed by animals. Additionally the seeds can be collected by household members and sold on the local market. The seed's oil can be used as a lamp oil or even for the production of bio-fuel.

Purpose of the Technology: Besides hedges and living fences, Jatropha is used for combating sheet or gully erosion. To stop erosion processes the Jatropha cuttings are planted across a gully or along hill sides to stabilize them in the same manner as check dams or terraces do. The plant is chosen because of its very tolerant character, rather high accessibility in the area and because it is easy to propagate by cuttings. Often Jatropha is used in combination with traditional stone check dams or terraces aiming for an increased stability of the technology itself. For that purpose Jatropha is planted in front of the stone walls or also on top of them.

Establishment / maintenance activities and inputs: In earlier times Jatropha was planted by seeds but nowadays, since there are a lot of plants in the area, propagation by cuttings is the more prominent form. Since the plants are pruned every year anyway, the cuttings are accessible almost in any case for free. At markets further away, the cuttings cost around one cent per piece. In order to rehabilitate a gully Jatropha cuttings are planted as near as possible in the selected area in a row across the gully. After rooting, the spaces between the plants are filled up with litter, shrubs or stones. In order to have a thick stem and avoid competition with crops, the plants are pruned every year. The thick main stems reach a height of approximately one meter which delineates the maximum height of possible soil collection. If the area behind the filled up gaps and the cuttings has silted up, the height is increased by adding new litter in the higher up gaps. In off farming season, the Jatropha seeds are collected and sold on the market to create additional income.

Natural / human environment: The case study site, Bati, lays in an semiarid climatic zone on 1600 m a.s.l. Rainfalls are erratic and the rain sum per year is between 500-1000 mm. The landscape is very hilly with rather steep slopes. The area has a high population density and growth. The agricultural sector is very dominant and lead by a lot of small scale farming with a lot of livestock and small plots of cropland.

2.3 Фотографии, иллюстрирующие Технологию

2.5 Страна/ регион/ места, где применяется Технология, информация о которых собрана в данной Анкете

2.6 Сколько лет применяется данная Технология

Если год начала применения Технологии достоверно неизвестен, дайте примерную оценку:

• 10-50 лет назад

2.7 Внедрение Технологии

Укажите, как именно Технология УЗП была внедрена:

• как инновация (инициатива) землепользователей

Пояснения (тип проекта и т.д.):

Farmers are using Jatropha curcas since approximately 30 years in the research area in Bati mostly for fencing. Innovative farmers started using the plant for stabilizing existing physical structures (stone walls, terraces, gully check dams) or using it as a complete substitute for these physical structures.

3.1 Основные цели и задачи реализации Технологии

• снижение или предотвращение деградации земель, восстановление нарушенных земель
• создание благоприятных экономических условий

3.2 Текущий(-ие) тип(-ы) землепользования на территории, где применяется Технология

Пояснения:

Major land use problems (compiler’s opinion): Deforestation, overgrazing, cultivation of erosion-sensitive areas or steep slopes.

Major land use problems (land users’ perception): Too much soil loss and land degradation, no vegetation cover and poor soil moisture.

Grazingland comments: Livestock is not fenced in. Children herd the animals and watch out that they do not browse through crop fields. In off-farming season crop residues are collected from the field and stored next to the field. Animals are allowed to eat the still remaining residues on the field. After that, the animals are fed by the collected crop residues.

Livestock is grazing on crop residues

Type of grazing system comments: Livestock is not fenced in. Children herd the animals and watch out that they do not browse through crop fields. In off-farming season crop residues are collected from the field and stored next to the field. Animals are allowed to eat the still remaining residues on the field. After that, the animals are fed by the collected crop residues. Ge: Extensive grazing land

3.3 Дополнительная информация о землепользовании

Обеспеченность водой участков, где реализуется Технология :

• богарные земли

Пояснения:

Water supply: Also mixed rainfed - irrigated

Число урожаев за год:

• 1

Поясните:

Longest growing period in days: 90 Longest growing period from month to month: June until September

Поголовье скота на единицу площади (если применимо):

> 100 LU /km2

3.4 Категория УЗП, к которой относится Технология

• мероприятия по влагозадержанию и снижению эрозии почв на склонах

3.5 Распределение Технологии по площади

Пояснения:

Total area covered by the SLM Technology is 0.7 m2.

Size of the case study watershed.

3.6 Мероприятия УЗП, выполняемые в рамках Технологии

Пояснения:

Main measures: vegetative measures, structural measures

Type of vegetative measures: aligned: -contour

3.7 Основные проблемы деградации земель, на решение которых направлена Технология

Пояснения:

Main type of degradation addressed: Wg: gully erosion / gullying

Secondary types of degradation addressed: Wt: loss of topsoil / surface erosion

Main causes of degradation: deforestation / removal of natural vegetation (incl. forest fires) (Deforestation for the past 30 years.), over-exploitation of vegetation for domestic use (Wood collection for cooking and construction.), overgrazing (60% of the watershed area are cultivated - big grazing pressure on remaining land), other human induced causes (specify) (Cultivation of very steep slopes.), change of seasonal rainfall (Erratic rainfall.), Heavy / extreme rainfall (intensity/amounts) (If there is rain, it is intensive.), population pressure (High population pressure.), poverty / wealth (Poor facilities.)

Secondary causes of degradation: soil management (Poor soil management practices and lack of awareness.), crop management (annual, perennial, tree/shrub) (Annual cropping.), droughts (The research area is considered rather dry.), land tenure (If the land is rented, it is poorly managed.), inputs and infrastructure: (roads, markets, distribution of water points, other, …) (Poor access to fertilizer. Bad infrastructures.), education, access to knowledge and support services (Lack of awareness for soil degradation.), Low productivity of the land (As a consequence seeking for new/larger areas to increase production.)

3.8 Предотвращение и снижение деградации земель, или восстановление нарушенных земель

Укажите цель Технологии по отношению к деградации земель :

• снижение деградации земель
• восстановление/ реабилитация нарушенных земель

Пояснения:

Main goals: rehabilitation / reclamation of denuded land

Secondary goals: mitigation / reduction of land degradation

4.1 Технический рисунок, иллюстрирующий Технологию

4.2 Спецификация / пояснения к техническому рисунку

Jatropha hedges as they can be found in the region of Bati. Often the plant is used for gully rehabilitation. For that purpose it is planted (mostly by cuttings) with a minimal interval between each plant to create a barrier-like hedge. The gaps are filled up with litter or stones.
Approximately 1 m of soil can be collected by the trunk - above that height it is too thin. The Jatropha seed can create additional income besides the purpose of soil and water conservation. Often, the plant is used in combination with traditional technologies (terraces, stone walls) and planted on top or in front of these traditional structures to improve their stability.

Location: South of Bati. Bati Woreda, Amhara Region, Ethiopia

Date: 05.05.2011

Technical knowledge required for land users: low (Planting takes place rather randomly in places of needs.)

Main technical functions: control of concentrated runoff: retain / trap, control of concentrated runoff: impede / retard, reduction of slope angle, increase / maintain water stored in soil, increase of groundwater level / recharge of groundwater, sediment retention / trapping, sediment harvesting

Secondary technical functions: reduction of slope length, improvement of ground cover, improvement of topsoil structure (compaction), increase in organic matter, increase in nutrient availability (supply, recycling,…), increase of infiltration, water harvesting / increase water supply, improvement of water quality, buffering / filtering water, reduction in wind speed, increase of biomass (quantity)

Aligned: -contour
Vegetative material: T : trees / shrubs
Number of plants per (ha): 10 per m
Vertical interval between rows / strips / blocks (m): ~1m
Spacing between rows / strips / blocks (m): ~20m
Vertical interval within rows / strips / blocks (m): 0.1
Width within rows / strips / blocks (m): 1.5

Vegetative measure: filling material
Vegetative material: O : other

Vegetative measure: Vegetative material: O : other

Vegetative measure: Vegetative material: O : other

Vegetative measure: Vegetative material: O : other

Trees/ shrubs species: Jatropha curcas

Other species: Stones, shrubs, sticks - things that can be found and utilized to fill up gaps between each plant.

4.3 Общая информация по необходимым вложениям и стоимости

другая/ национальная валюта (название):

Ethiopian Birr

Укажите обменный курс между долларом США и местной валютой (если уместно): 1 доллар США =:

16,82

4.4 Мероприятия, необходимые для начала реализации

	Деятельность	Тип мероприятия	Сроки
1.	One time initial sawing of Jatropha seeds (30 years ago).	Мероприятия с использованием растительности	Initial. Wet season.
2.	Cutting of the Jatropha cuttings (12.5 person days needed).	Мероприятия с использованием растительности	dry season
3.	Planting of the Jatropha cuttings (12.5 person days needed).	Мероприятия с использованием растительности	dry season

4.5 Вложения и затраты, необходимые для начала реализации

	Опишите затраты	Единица	Количество	Затраты на единицу	Общая стоимость на единицу	% затрат, оплаченных землепользователями
Оплата труда	Seeding	person day	1,0	1,0	1,0	100,0
Оплата труда	Cutting of the Jatropha cuttings	person day	12,5	1,0	12,5	100,0
Оплата труда	Planting of the Jatropha cuttings	person day	12,5	1,0	12,5	100,0
Оборудование	Tools for cutting	500m	1,0	5,0	5,0	100,0
Посадочный материал	Seeds	kg	1,0	2,0	2,0	100,0
Общая стоимость запуска Технологии					33,0

4.6 Поддержание/ текущее обслуживание

	Деятельность	Тип мероприятия	Сроки/ повторяемость проведения
1.	Collection of Jatropha seeds (5 person days needed).	Мероприятия с использованием растительности	Off farming season(Okt.)
2.	Filling up the gaps with litter (5 person days needed).	Мероприятия с использованием растительности	If necessary
3.	Pruning of the Jatropha hedges (15 person days needed).	Мероприятия с использованием растительности	Yearly before wet season.

4.7 Стоимость поддержания/ текущего обслуживания ( в год)

	Опишите затраты	Единица	Количество	Затраты на единицу	Общая стоимость на единицу	% затрат, оплаченных землепользователями
Оплата труда	Collection of Jatropha seeds	Person days	5,0	1,0	5,0	100,0
Оплата труда	Filling up the gaps with litter	Person days	5,0	1,0	5,0	100,0
Оплата труда	Pruning of the Jatropha	person days	15,0	1,0	15,0	100,0
Оборудование	Tools	Person days	15,0	0,333333333	5,0	100,0
Строительные материалы	Wood	500m	1,0			100,0
Строительные материалы	Stone	500m	1,0			100,0
Общая стоимость поддержания Технологии					30,0

Пояснения:

Machinery/ tools: saw, axe

Total costs of a hectare are calculated for a hedge of 100 m length every 20 m (500 m total hedge) in the year 2011. Tool prices were estimated and labor costs were calculated with a daily wage of 1$.

4.8 Наиболее значимые факторы, влияющие на стоимость затрат

Опишите наиболее значимые факторы, влияющие на стоимость затрат:

Rough topology in the area, questionable availability of construction materials if they are not found nearby.

5.1 Климат

5.2 Рельеф

Комментарии и дополнительные сведения по условиям рельефа/ топографии :

Altitudinal zone: 1501-2000 m a.s.l. (The study site is located at 1600m a.s.l.)
Landforms: Hill slopes (ranked 1) and valley floors (ranked 2)
Slopes on average: Hilly (ranked 1), rolling (ranked 2) and steep (ranked 3)

5.3 Почвы

Если возможно, приложите полное описание почв или укажите доступную информацию, например тип почв, рH/ кислотность почв, ёмкость катионного обмена, содержание азота, содержание солей и т.д.

Soil depth on average: Very shallow (ranked 1), shallow (ranked 2)
Soil texture: Coarse/light (ranked 1) and medium (ranked 2)
Soil fertility is low
Soil drainage/infiltration is good
Soil water storage capacity is medium

5.4 Доступность и качество воды

Комментарии и дополнительная информация по качеству и количеству воды:

Ground water table is unknown.
Availability of surface water: Only during rainy season
Water quality (untreated): Poor drinking water (treatment required, mostly groundwater)

5.5 Биоразнообразие

Комментарии и дополнительная информация по биоразнообразию:

Relative to other parts of Ethiopia.

5.6 Характеристика землепользователей, применяющих Технологию

Укажите другие важные характеристики землепользователей:

Land users applying the Technology are mainly common / average land users
Population density: 100-200 persons/km2
Annual population growth: 6%
1% of the land users are rich (Adopt the most of SWC technologies).
19% of the land users are average wealthy.
89% of the land users are poor.
Off-farm income specification: Off-farm income has low importance.
Level of mechanization: Animal traction (plowing by oxen, ranked 1) and manual work (ranked 2)
Market orientation: Mixed (subsistence and commercial) Goat/sheep are main meat source (in household or on market).

5.7 Средний размер земельных участков, арендуемых или находящихся в собственности землепользователей, применяющих Технологию

5.8 Собственность на землю, права на земле- и водопользование

Землевладелец:

• индивидуальная, оформленная в собственность

Право водопользования:

• неограниченное (неконтролируемое)

5.9 Доступ к базовым услугам и инфраструктуре

6.1 Влияние Технологии УЗП в пределах территории ее применения

Социально-экономическое воздействие

Продуктивность

Доступность и качество воды

Доходы и затраты

Социальное и культурное воздействие

Экологическое воздействие

Водный цикл/ поверхностный сток

Почвы

Биоразнообразие: растительность, животный мир

Климат и снижение риска стихийных бедствий

Другие экологические последствия

6.2 Влияние Технологии за пределами территории ее применения

6.3 Подверженность и чувствительность Технологии УЗП к постепенным изменениям климата и экстремальным погодным явлениям/ стихийным бедствиям, связанным с изменением климата (в понимании землепользователей)

Постепенное изменение климата

Постепенное изменение климата

	Сезон	Тип изменения климата/ экстремального явления	Насколько успешно Технология справляется с этим?
среднегодовые температуры		увеличилось	хорошо

Экстремальные явления, связанные с изменением климата (стихийные бедствия)

Погодные стихийные бедствия

	Насколько успешно Технология справляется с этим?
местные ливневые дожди	хорошо
местные ураганы	хорошо

Стихийные бедствия климатического характера

	Насколько успешно Технология справляется с этим?
засухи	хорошо

Гидрологические стихийные бедствия

	Насколько успешно Технология справляется с этим?
регулярные наводнения (выход рек из берегов)	не известно

Другие воздействия, связанные с изменением климата

Другие воздействия, связанные с изменением климата

	Насколько успешно Технология справляется с этим?
сокращение вегетационного периода	хорошо

6.4 Анализ эффективности затрат

Насколько получаемый результат сопоставим с первоначальными вложениями (с точки зрения землепользователей)?

Насколько получаемый результат сопоставим с текущими расходами по поддержанию технологии (с точки зрения землепользователей)?

Пояснения:

Establishment needs a little time, although not very much. Maintenance work is very little needed and can be done if needed or in off-farming season. Establishment and mainentance costs are none or very little.

6.5 Внедрение Технологии

Среди применяющих Технологию землепользователей, какова доля лиц, применяющих её по собственной инициативе, т.е. без какого-либо материального стимулирования со стороны?

• 90-100%

Пояснения:

Comments on acceptance with external material support: Local technology spread from farmer to farmer.
Comments on spontaneous adoption: Completely based on farmer's initiative.
There is a strong trend towards spontaneous adoption of the Technology
Comments on adoption trend: A lot of farmer are adopting (or already have adopted) Jatropha curcas as a SWC technology in the region.

6.7 Сильные стороны/ преимущества/ возможности Технологии

Сильные стороны/ преимущества/ возможности по мнению землепользователей
Soil and water conservation are very important. Also the conservation of soil moisture. How can they be sustained / enhanced? Create farmer's awareness that SWC is very important for a sustainable land management.
In combination, Jatropha curcas can also be used to stabilize traditional stone structuress (terraces, dams). These physical structures are not consideret very stable and need a lot of work to establish and maintain. How can they be sustained / enhanced? Further research to improve physical structures, Jatropha curcas structures as well as their combination.
The roots bind the soil and holding it together and help collecting additional soil that otherwise would be washed out. The root and the plant also help to slow down flowing water. How can they be sustained / enhanced? Research on how tolerant is the plant on flooding etc.
Jatropha curcas is also a very good life fence that animals do not browse through because the leaves are poisonous. How can they be sustained / enhanced? Create awareness in the society that the plant is poisonous and should not be eaten.
The seeds can be sold. How can they be sustained / enhanced? Creating and improving markets, infrastructures and technologies that need Jatropca curcas oil or biofuel.

Сильные стороны/ преимущества/ возможности по мнению составителя или других ключевых специалистов
Very low labor and money input for establishment and maintenance. How can they be sustained / enhanced? Keep the technology as simple as it is today.
Easy to atopt in a wide range of environments (Jatroha curcas is a rather tolerant plant). How can they be sustained / enhanced? Additional research to improve knowledge of Jatropha curcas.
Selling of the seeds is an additional income. If the seeds are crushed to oil it can substitute for example lamp oil that has to be bought. How can they be sustained / enhanced? Improve market situation and find technologies suitable to use Jatropha curcas oil or biofuel.
The plant can be used in a wide range of rehabilitation purposes (gully rehabilitation, hill stabilization, improvment of micro climate etc.) How can they be sustained / enhanced? Create and maintain awareness of the farmers.
If plantet on bare land only, the plant does not compete with food production. How can they be sustained / enhanced? Sensitize the farmers that food is more important than gaining an extra income so they do not give up their fields for Jatropha seed production.

6.8 Слабые стороны/ недостатки/ риски Технологии и пути их преодоления

Слабые стороны/ недостатки/ риски по мнению землепользователей	Возможные пути их преодоления/снижения?
If children eat the seeds they get sick.	Rise awareness that the plant is poisonous.
Plant competes for soil moisture.	Find a good compromise betweeen pruning and maximum toleratet shade as well as maximum soil moisture that can be taken by the plant to maximize yield.
Plant competes for sun light.	Find a good compromise betweeen pruning and maximum toleratet shade as well as maximum soil moisture that can be taken by the plant to maximize yield.

Слабые стороны/ недостатки/ риски по мнению составителя или ответственных специалистов	Возможные пути их преодоления/снижения?
Jatropha curcas is an alien plant although it is used for more than 30 years in the region.	Research on the long term effects of Jatropha curcas in specific areas.
If the plant should reach maximum yields inputs have to be increased as well and it has to be planted on fertile soil (food competition).	Make shure people only use it as fence or as a SWC plant on bare land.
To avoid shading the plant is often pruned every year and the yield is therefore very small (economically irrelevant).	Find a good compromise betweeen pruning and maximum toleratet shade to maximize yield.
The plant is poisonous. People have to take care and children have to be sensitized. But acording to the farmers eating the leaves or the seeds leads to stomach ache and is not too dangerous.	Create awareness in the society that the plant is poisonous and should not be eaten.
Farmers plant and use Jatropha curcas quite randomly and without any specific approach.	The role of science: find the best practice.

7.2 Ссылки на опубликованные материалы

Название, автор, год публикации, ISBN:

Bach S. (2012) Potentials and limitations of Jatropha curcas as a multipurpose crop for sustainable energy supply and soil and water conservation - a case study in Bati, Ethiopia, using the WOCAT approach. Unpublished master’s thesis, Centre for Development and Environment, University of Bern.