Rainfall research

Crop growth, drinking water and recreational watersports could all be adversely affected if predicted changes in rainfall patterns over the coming years prove true.

Scientists from Biotechnology and Biological Sciences Research Council (BBSRC)-funded North Wyke Research have found for the first time that the rate at which a dried soil is rewetted impacts on the amount of phosphorus lost from the soil into surface water and subsequently into the surrounding environment.

Dr Martin Blackwell, who is one of the project leaders, said: 'Our preliminary results show that despite best efforts, the changing climate may limit our ability to mitigate phosphorus losses at certain times of the year, especially summer.

'This is really worrying because high phosphorus concentrations in surface waters can lead to harmful algal blooms, which can be toxic, cause lack of oxygen during their decay and disrupt food webs. This can also affect the quality of water for drinking and result in the closure of recreational watersport facilities.'

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