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The future of tropical water resources: using palaeolimnology to inform sustainable management

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posted on 2021-07-09, 15:26 authored by Laura Hunt, Angela Nankabirwa, Tessa Driessen, Keely Mills, Julius B Lejju, David RyvesDavid Ryves, Matthew D Jones
Lakes are an important resource. They provide vital ecosystem services and employment for many communities worldwide. Maintaining lakes as ecosystem providers without damaging the lake ecosystems themselves, against a background of increasing human use of landscapes and climate change, requires careful and informed management. Key to such management is an understanding of how lakes will respond to ongoing and future changes in their catchments. Long-term monitoring, through regular measurements of lake chemistry for example, can help provide this understanding but such data are rare, particularly for tropical lakes. Using a palaeolimnological approach can provide an alternative to long term monitoring. This paper compares the information that monitoring data and lake sediment records can bring to an understanding of lake change in western Uganda. Water chemistry data show a general pattern to lakes with higher Chlorophyll-a and TP values over the last 15 years, although not all lakes follow this pattern. Sediment cores from Lakes Kamunzuka and Nyungu both show changes in diatom flora through the latter half of the twentieth century and increases in dry mass accumulation rate between c. 1980 and 2000. This study highlights the importance of a co-ordinated monitoring approach to provide the data needed to benchmark management decisions. The importance of understanding each lake on its own merits, from a monitoring or palaeolimnological perspective is also highlighted. Combined, these approaches provide an approach to inform management decisions to sustain lake ecosystems in a healthy state, for the benefit of all users.


Calibrating lake sediment records as proxies of environmental change in East Africa: integrating lacustrine, climatic and epidemiological archives

Natural Environment Research Council

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British Ecological Society (SR16/1371)

ENVISION: Developing next generation leaders in environmental science

Natural Environment Research Council

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British Geological Survey University Funding Initiative stipend

Geoscience for Sustainable Futures

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  • Social Sciences and Humanities


  • Geography and Environment

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Youth and Water Security in Africa


220 - 246


United Nations Educational, Scientific and Cultural Organization (UNESCO)


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This is an Open Access Publication. It is published by United Nations Educational, Scientific and Cultural Organization (UNESCO) under the Creative Commons Attribution-ShareAlike 3.0 IGO Licence (CC BY-SA IGO). Full details of this licence are available at: https://creativecommons.org/licenses/by-sa/3.0/igo/. By using the content of this publication, the users accept to be bound by the terms of use of the UNESCO Open Access Repository (http://www.unesco.org/open-access/terms-useccbysa-en).

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Hilary I. Inyang


Prof Dave Ryves. Deposit date: 22 April 2021

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