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  1. Topics
  2. Regional Development
  3. Water for Life
  • Water for Life
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  • Lake Tana Biosphere Reserve
Read

Lake under threat

The Lake Tana region faces imminent danger of destruction

Lake Tana and its surrounding wetlands are of immense ecological value and provide the means of existence for millions of people, however increasing human activity is causing the destruction of this unique area. Ecosystems are being degraded through the high pressure on natural resources.


  • The local people have been using the resources for centuries – but a growing population is threatening the ecological balance - Photo: Bruno D’Amicis

  • Lake Tana Shore - Photo: Bruno D'Amicis

  • Photo: Michael Succow


Unsustainable human activity is having its tragic effect on the environment in the Lake Tana region, undermining the very services and resources that the vast majority of the population heavily depends on. Failing to address these driving factors will lead to further deterioration of the environment and the loss of people's livelihoods.


Disappearing forests

Almost all of the forests in the catchment area of Lake Tana have been converted into farmland. Only small patches of original forest remain around churches and monasteries.


Disappearing forests

Trees are important for the survival of the Lake - but only few remain - Photo: Ronja Krebs

Trees are important for the survival of the Lake - but only few remain - Photo: Ronja Krebs

In the last 50 years there has been a reduction in forest cover from 40 percent to just 1 percent. The original forest has been lost in the search for new fertile land, for example being replaced with plantations of Eucalyptus trees, a species that is not native to Ethiopia and although it is fast growing and versatile, it also requires great quantities of water to grow. Traditional “coffee forests” where coffee plants are grown under the forest canopy are decreasing. Deforestation and forest degradation have had serious consequences: Water and wind erosion have increased on the steep slopes and valleys of the Lake Tana catchment area. Soil erosion and the level of sedimentation and siltation in the lake and rivers have also increased and there has been a significant loss and fragmentation of habitat for plants and animals.


Expanding agriculture

An intensification of agriculture, the overgrazing of pastures and expansion of farmland has contributed to the problem of land degradation and soil erosion. Nutrients are being washed into the lake, upsetting the ecosystem's natural balance. Valuable wetlands are being drained and converted into farmland. As a result, the lake's characteristic reed and papyrus vegetation along its shores is being destroyed. Plants and trees are being harvested on a massive scale to meet the demand for food, fodder and fuel.


Drastic reduction in water quality

Waste and effluent from some of the homes, factories and hotels in urban settlements including the capital city of the Amhara National Regional State, Bahir-Dar, are released into the lake untreated. In addition to this, fertilisers and pesticides used in agriculture are washed into the lake. This pollution is leading to a reduction in the water quality, causing a decrease in the number of fish species and an increase in algal blooms and alien species such as water hyacinths. This change in quality will have consequences for crops that are irrigated using the water as well as a decrease in the income of local fishermen.

There is a real danger that the lake will be permanently damaged by these human activities and the services it provides will be lost forever. The onset of climate change will naturally have drastic consequences and exacerbate the situation further. The Lake Tana Biosphere Reserve will help towards addressing these problems and provide a sustainable future for the area's environment and its local inhabitants.


project overview

Hippos! The Lake Tana Watershed has a diverse wildlife - photo: Bruno D/'Amicis
Water for Life

The largest lake in Ethiopia, Lake Tana, is a source of life for 4 million people in the region. Over the course of the last decade, however, the consequences of increased industrialization and development have been posing a threat to this vital water supply. more →

related topics

hands gently touching crops
Regional Development

NABU promotes sustainable regional development worldwide. Our international projects always include income-generating activities, which comprehensively address all three dimensions of sustainability - balancing economy, ecology and social equality. more →

Lake Tana Tisisat falls along the Blue Nile - photo: Bruno D'Amicis
Protected Areas

NABU supports the creation, establishment and effective management of protected areas as part of our international activities, not exclusively but with special emphasis to UNESCO biosphere reserves, which are characterised by integrative and segregative approaches. more →

German premier league soccer club VfB Stuttgart supports NABU's engagement for environmental protection and sustainability | photo: VfB Stuttgart
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Make Peatlands wet again! - photo: Adobe Stock / Countrypixel
Ecosystems

An ecosystem is a complex of living organisms. NABU focuses on restoring ecosystems to their original state and important regulatory functions such as carbon sequestration. Ideally that's done by creating conditions in which the ecosystem can recover on its own. more →

Downloads

Project flyer Lake Tana PDF (10.7 MB) Feasibilty Study PDF (5.8 MB)

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