How is diversity related to changes in ecosystems?

Diversity means the presence of human habitation and environment in general. changes in ecosystems may include deforestation, habitat destruction and many more so cutting down trees may leave the soil exposed and can lead to washing away of soil into river which may damage fish and plants growing. Also habitat destruction may include the same as destroying natural habitats which may lead to animal extinction and all of this may reduce the diversity of the whole ecosystem. Thank u hope it helps