A new research study published by Forest Research finds Great Britain’s trees and woodlands contribute over £400 million annually in terms of flood defence benefits.

Trees and woodlands have long been known to play a vital role in flood resilience, but scientists are now able to establish the financial contribution they make in protecting communities from flooding.

Forests reduce and slow down the rapid run-off that causes flooding following heavy rain – the findings highlight the importance of woodland expansion to protect at-risk communities.

The flood regulation service of Great Britain’s trees, forests and woodlands as an annualised central estimate gave annual values of £843 million and £420 million compared to bare soil and grass, respectively.

The valuation is based on the role trees, woodlands and forests play in intercepting rainfall, storing water and reducing the potentially devastating surface runoff that causes flooding.

Given the increased likelihood and frequency of extreme weather events as a result of climate change, the report highlights how woodland expansion can be a natural, cost-effective method of protecting homes and businesses – now and for the future.

Download the report here.