- 6 indirect value of biodiversity

1. Biogeochemical cycles (We depend on the cycles for freshwater, the removal of carbon dioxide from the atmosphere, and the uptake of nitrogen in the soil and the provision of phosphates) 2. Water recycling (the decomposition of dead organic material and waste products, aids humans) 3. Provision of freshwater (humans need fresh water for drinking and irrigating crops, such as rivers and lakes provide large diversity of species we also use as food resources) 4. Prevention of soil erosion (tact ecosystems naturally retain soil and prevent soil erosion, the importance of this ecosystem attributes is especially observed following deforestation. 5. Regulation of climate (trees provide shade and reduce the need for fans and air conditioners during the summer, trees also use carbon dioxide when photosynthesizing, the bodies of the tree store carbon and oxygen is released as a byproduct, CO2 affect the amount of solar radiation retained on the earth surface 6. Ecotourism, (millions of people enjoy vacations in natural settings, tourism leads to the burning of trees for hotels and hiking .