'Extreme' erosion events require practical solutions

摘要

Grassed waterways and mulches in combination with shallow cultivations could help mitigate the increased risk of gulley erosion in some cropped fields, according to a three-year on-farm investigation. It is generally accepted that climate change has already resulted in significant changes in the amount, frequency, type, intensity and energy of rainfall experienced in the UK, with an increasing frequency of "extreme" rainfall events. In turn, this intense rainfall generates high volumes of surface flow, increasing the occurrence of "extreme" erosion events, often marked by deep gullies in fields.