Deciduous and evergreen broadleaf trees coexist in this area.
落葉 (leaf-shedding) + 広葉樹 (broadleaf tree): a broadleaf tree that drops all its leaves seasonally, unlike an evergreen broadleaf tree. Most Japanese trees famous for autumn color, such as maples and zelkova, belong to this category.
Similar words
常緑広葉樹: evergreen broadleaf tree — keeps its leaves year-round instead of shedding them
広葉樹: the broader category covering both deciduous and evergreen broadleaf trees