Photo showing underground water abstraction hole in the ground in Northern Uganda (Issa Aiga)
Underground water abstraction is done by excavating a pit hole in the ground fixed and protected against collapse to reach water underground . A hole measuring 2-6 m deep , 2 m wide and 3 m long is manually dug in the ground/ soil and established far distant from the homes and near the streams to allow water to collect and come up . The hole is shaped in such a way that water does not flow out, and the top is covered to keep the water in the hole protected from contamination. The opening is covered with local materials like poles, bamboo stems (Bamboo aridinarifolia), etc. Water flows into the hole through various methods of groundwater recharge such as open wells, soak pits, and recharge shaft/ trench.
The activities involved in establishing such a underground water hole include (1) identifying suitable site for digging the hole, (2) looking for trainer or expert to advise on how to dig and cover the hole, (3) looking for labor, and tools (e.g. hoes, spades, poles, etc.), (4) digging the hole to a depth of about 2-6 m, de-pending on the level of water table, (5) protect the hole with bamboo or wood to ensure hygiene and from people falling in.
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The returns derived from this technology include: an effective alternative water source during the dry season which is used for crop irrigation (e.g. maize – Zea mays; cabbage - Brassica oleracea) and for livestock production/ watering.
This technology is most preferred because it is cheap, affordable and easy to maintain. The only costs are at the establishment phase. Its main challenge is that it can be contaminated when managed poorly if animals are allowed to close to the hole. To ensure this, the farmer needs to keep in contact with the extension agent to ensure maximum proper management of the hole to minimize contamination.
In terms of impacts, the technology provides an effective alternative water source during the dry season, which is used majorly for livestock and irrigating crops.
Because the technology is promoted as a supplementary water source for the dry season, during the wet season grass may grow on top of the protected hole. Before its use in the dry season the land user removes the grass before abstracting the well water for crop production and 5 heads of livestock kept in distance of 50 m-100 m from the well.
Местоположение: Lamwo, Nothern Region, Уганда
Число исследованных участков, где применяется Технология: отдельный участок
Пространственное распространение Технологии: примененяется точечно/ на небольших участках
На постоянно охраняемой территории?:
Продолжительность применения Технологии: 2016; менее 10 лет назад (недавняя)
Тип внедрения/ применения
| Опишите затраты | Единица | Количество | Затраты на единицу (UGX) | Общая стоимость на единицу (UGX) | % затрат, оплаченных землепользователями |
| Оплата труда | |||||
| Labour for digging the hole | Persons | 5,0 | 5000,0 | 25000,0 | 100,0 |
| Оборудование | |||||
| Hoe | Pieces | 1,0 | 10000,0 | 10000,0 | 100,0 |
| Spade | Pieces | 1,0 | 10000,0 | 10000,0 | 100,0 |
| Poles for protecting the hole | Pieces | 100,0 | 200,0 | 20000,0 | 100,0 |
| Посадочный материал | |||||
| Bamboo for protecting the hole | Pieces | 1,0 | 10000,0 | 10000,0 | 100,0 |
| Общая стоимость запуска Технологии | 75'000.0 | ||||
| Общие затраты на создание Технологии в долларах США | 22.39 | ||||
| Опишите затраты | Единица | Количество | Затраты на единицу (UGX) | Общая стоимость на единицу (UGX) | % затрат, оплаченных землепользователями |
| Оплата труда | |||||
| Labour for slashing of grown plants and grass | Persons | 2,0 | 5000,0 | 10000,0 | 100,0 |
| Labour for transporting water for livestock | Persons | 2,0 | 5000,0 | 10000,0 | 100,0 |
| Labour for Hygiene inspection (monthly) | Persons | 3,0 | 2000,0 | 6000,0 | 100,0 |
| Оборудование | |||||
| Test kit | Pieces | 1,0 | 100000,0 | 100000,0 | 100,0 |
| Другие | |||||
| Pesticides (monthly) | litres | 3,0 | 12000,0 | 36000,0 | 100,0 |
| Общая стоимость поддержания Технологии | 162'000.0 | ||||
| Общие затраты на поддержание Технологии в долларах США | 48.36 | ||||
Due to irrigation water
Количество до применения УЗП : 0
Количество после применения УЗП: None
More milk produced and sold from 0 to 10 litres per day each litre sold at 0.35 USD
water is available for livestock during dry spells
underground water clean. not poluted
water available for irrigating crops in the dry season
underground water is not poluted
extented crop cultivation and increased production during dry seasons
Especially during the dry season for livestock and crop production
Kept to be used in the dry season for livestock and crop prouduction
