The environmental factors influencing biomes include latitude, the general climate and topography of the region, and soil. Soil is the foundation of every terrestrial ecosystem. Each biome has soils with characteristics unique to it.
"Soil moisture, soil nutrients, and length of growing season also affect what kinds of plants can grow in a place and what kinds of organisms the biome can sustain. Along with temperature and precipitation, these are factors that distinguish one biome from another and influence the dominant types of vegetation and animals that have adapted to a biome's unique characteristics. "
