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The University of Southampton
Institute for Life Sciences

Crop Systems Seminar: Phosphorus – a critical element in wetland conservation and restoration Event

Justin la Berge, Creative Commons
Time:
13:00 - 14:00
Date:
22 July 2016
Venue:
University of Southampton, Highfield Campus, Building 85, Room 2209.

For more information regarding this event, please email Dr Keith Daly at krd103@soton.ac.uk .

Event details

Dr Steve Robinson's teaching and research address the role and behaviour of soils in both the man-made and natural environments, seeking to ask and answer questions that are pertinent to national and international laws on agricultural land use and environmental quality.

 

Abstract: The restoration of wetlands often involves the maintenance of a fluctuating water regime by controlling the water levels in localised field drainage ditches. However, evidence suggests that alternate flood / drainage cycles can accelerate phosphorus (P) cycling and transport within the wetland soil, resulting in accumulation of P in the bottom sediment of the ditches; this poses a serious threat to the ecology both of the ditch water and downstream water courses. The presentation will explain how P is cycled through the major wetland compartments: soil, water and vegetation, and then describe a case study that quantifies the accumulation and release of P in the drainage ditch network of a recently restored wetland.

Image credit: Justin la Berge, under Creative Commons licence 2.0

Speaker information

Dr Steve Robinson,University of Reading,Current research: The role of agriculture in the degradation of water quality; Reducing the transfer of nutrients from agricultural land to surface waters; The effect of organic amendments on soil nutrient dynamics and water quality; Biogeochemical processes in soil that regulate phosphorus dynamics in periodically flooded soils; The use of remote sensing and Earth observation to identify and model critical source areas and pathways of pollution in agricultural catchments; and Nutrient cycling in organic farming systems.

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