Why do more plants grow on the floor of deciduous forest than on the floor of a coniferous forest?

More plants grow on the floor of deciduous forests than in coniferous forests primarily due to the differences in sunlight availability and soil nutrient content. Deciduous trees shed their leaves annually, allowing more light to reach the forest floor during the growing season, which benefits understory plants. In contrast, coniferous forests tend to have denser canopies that block sunlight and produce acidic litter, which can inhibit plant growth. Additionally, the richer, more diverse soil in deciduous forests supports a wider variety of plant species.