Wladimir Koppen based his Climate Classification system primarily on what aspect?

Wladimir Koppen's Climate Classification system is primarily based on the vegetation types found in different regions, which directly reflects the climate of those areas. By examining the distribution of plants and their adaptations to various climatic conditions, Koppen established a method for classifying climates according to the types of vegetation that thrive in each climate zone. This approach provides insight into the relationship between climate and biological communities, allowing for a more intuitive understanding of how flora is influenced by temperature, precipitation, and seasonal patterns.

While other aspects such as temperature averages, geological features, and weather patterns do play roles in understanding climate, Koppen’s criteria specifically emphasize the significance of vegetation and its response to climatic conditions as fundamental for delineating climate types. This makes the link between vegetation and climate a central component of his classification system.