climate and natural features
Refers to the combination of climate, topography, and natural environment of a region. Often used in geographical or ecological contexts.
The climate and natural features of this region are suitable for agriculture.
風土 refers specifically to the natural features and climate of a region, often with cultural connotations. 風土気候 is a more explicit compound emphasizing both climate and natural features.
気候 means climate alone. 風土気候 adds the dimension of natural features (topography, soil, etc.) to the climatic aspect.
Compound of 風土 (ふうど, 'natural features, climate') and 気候 (きこう, 'climate'). The exact historical derivation is uncertain, but the word is conventionally associated with the combined concept of regional climate and natural environment.