IFSAC Wildland Pro Board Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

North-facing slopes typically receive less direct sunlight compared to south-facing slopes, especially in the Northern Hemisphere. This lack of direct sunlight contributes to cooler temperatures and allows for increased moisture retention in the soil. As a result, these slopes tend to be wetter, fostering the growth of lush vegetation and maintaining a higher relative humidity.

The cooler temperatures can prevent rapid evaporation, which contributes to the overall humidity levels. This environment is conducive to supporting different types of plant species that thrive in moist conditions, often leading to denser forest cover compared to drier, sunlit slopes.

This phenomenon is particularly noticeable in temperate regions, where the differences between north and south slopes can significantly affect the type and amount of vegetation present. Thus, the association of north-facing slopes with higher moisture levels and increased vegetation density is well-documented in ecological studies.