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Professor Penny Johnes

Professor Penny Johnes

Professor Penny Johnes
BSc, D.Phil (Oxon.)

Professor of Biogeochemistry

Area of research

Biogeochemistry of inland and coastal waters

Office 1.8nA
University Road,
Clifton, Bristol BS8 1SS
(See a map)

Tel. +44 (0) 117 928 8273

Research summary

Penny is an environmental scientist by background who has worked on the biogeochemistry of aquatic systems, and the impacts of food production and environmental change on the quality of inland and coastal waters for the past 25 years. She has provided advice to a range of UK Government and international agencies on the nature and scale of nutrient enrichment in waters, the consequences of this enrichment for ecosystem health, and the most effective strategies for the control of nutrient flux from land basd sources to waters.  She is currently a member of the UNECE Task Force for Reactive Nitrogen and ...

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Penny obtained a BSc in Environmental Science in 1986 at the University of Plymouth, and a D.Phil from the University of Oxford (School of Geography) in 1990 where she worked with Professor Tim Burt.  Her D.Phil research, funded by the UK Natural Environment Research Council (NERC) analysed the impact of agricultural practices on water quality in lowland catchments, identifying for the first time the quantitative significance of dissolved organic and particulate nutrient fractions as part of the total nutrient load delivered to waters in lowland catchments, and the importance of extreme high-flow events in the delivery of ...

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Selected publications

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View complete publications list in the University of Bristol publications system

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