Deforestation leads to desertification
Gini 23 (Martina Gini has MA in International Development from the University of Vienna and researches about sustainability and the role of public policy in environmental protection, Earth Org, 4/6/23, “How Does Deforestation Affect the Environment?,” https://earth.org/how-does-deforestation-affect-the-environment/)//ghs-nehahha
In addition to their role as carbon sinks, forests are a crucial component of the water cycle and have the all important function of preventing desertification. Cutting down trees can disrupt the cycle by decreasing precipitation and affecting river flow and water volume. In the case of the Amazon rainforest, research shows that at least 80% of its trees would be needed in order to keep the hydrological cycle going. With nearly 17% of the forest lost already, the Amazon is currently at its tipping point. Statistics show that deforestation in the tropics reduces precipitation over the Amazon by around 10%, or 138 millimeter, every year. In the South Asian Monsoon region, the reduction in rainfall is even higher, with around 18% less rain recorded in India in a single year. Aside from their contribution to the water flow, trees help the land retain water and sustain forest life by supplying the soil with rich nutrients. Deforestation deprives the land of its cover, leaving the soil exposed to wind and rain. This makes soil vulnerable to being washed away, and prone to erosion. According to the World Wildlife Fund (WWF), as much as half of the world’s topsoil has been lost as a consequence of the nearly 4 million square miles of forest that have been lost since the beginning of the 20th century.