| Kiambere site |
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The lake is fed by Kenya’s biggest river, the Tana that originates from the slopes of Mount Kenya. Its tributaries find their way to the lowlands through densely populated areas, carrying plenty of soil from erosion. TARDA has a catchment protection programme, but the waters of the river are very brown every rainy season. The situation is compounded by intense erosion around the lake, where literally thousands of tonnes of soil are washed into the lake after every major downpour. This fills up the dam, decreasing its lifespan, and hence reducing the capacity for provision of affordable electricity. BGF has demonstrated that it can stop erosion on the lakesides completely, by planting trees and blocking erosion gullies with thousands of check dams. The tree species planted on this 100ha pilot site are mukau (Melia volkensii), neem (Azadirachta indica), Jatropha curcas and, shortly, Acacia senegal. Mukau, the principal species for BGF, is planted for its superior mahogany-type timber. BGF’s trials have shown that it can be planted year-round, provided it receives adequate care and irrigation. Growth is excellent, with seedlings reaching 3 metres in height, after barely in one and a half years. BGF has planted neem for its oil, which is used in biological pesticides, and has medicinal properties. Jatropha curcas, a shrub originally from Latin America, produces fruits with a high oil content suitable for diesel. It is hence a bio fuel plant, and BGF has engaged in piloting activities regarding management techniques, and trials for different silvicultural treatments. BGF is now in the process of acquiring selected seeds from Acacia senegal, to establish a trial plantation of different provenances of this species. It produces the valuable gum arabic, a stabilizing agent that has many industrial applications in the food, beverage and printing industries. All these species are adapted to the local environment, that is, hot and semi-arid, which irregular rainfall. In particular, Melia volkensii and Acacia senegal are extremely drought resistant. BGF employs between 20 and 80 people in the pilot plantation, depending on the work, which in turn depends on the season. There is overall supervision by BGF staff, security by guards to avoid theft from the store, and intrusions by goats and other livestock that would damage the trees, the nursery and various works in the plantations. These works include the whole cycle of land preparation, tree planting and plantation maintenance. BGF is the biggest employer in the area, with payment of salaries signifying an important injection of cash into the local economy. |
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| NB: Remember to copy the coordinates as they are or type observing all the spaces between the numbers, to Google Earths Fly in section |
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| 1. Kiambere Site: -0.689822, 37.91 | |
| 2. Nyangoro Site: 02 19.782'S, 040 19.416'E | |
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