Wind turbines can create wakes, which are areas of slower, more turbulent air behind the turbines. This is similar to the way a boat leaves a wake in the water. Under certain weather conditions, these wake effects can extend downwind from the turbines. The behaviour of turbine wakes is well understood and is considered by wind engineers when designing and assessing wind farms.
However, there is no scientific consensus that wind turbines dry out farmland. Some studies have observed small, localised changes in soil moisture and microclimate within or immediately around wind farms.
Importantly, these findings vary depending on climate, season, soil type, vegetation and local weather conditions. Researchers note that results are not universal and should not be applied broadly to all wind farms or farming regions.
Learn more: Localized Eco-Climatic Impacts of Onshore Wind Farms: A Review
