For information on user permissions, please read our Terms of Service. Deserts grow as water is evaporated. Any interactives on this page can only be played while you are visiting our website. Desertification means that the land is increasingly dry, losing much of its plant life and water. Human Environmental Interaction: Because dry lands take up 40 percent of the worlds land area, desertification is a global issue that affects almost all continents, especially Africa. The roadrunner, native to the deserts of North America, obtains water from its food.Some xerocoles have bodies that help them handle the heat. These windbreaks anchor the soil and prevent sand from invading populated areas.In Chinas Tengger Desert, researchers have developed another way to control wandering dunes. Without access to these foods it can do harm to ones health. This method relies on cutting and burning forests to create fields for crops. Shrubs are known to divert nutrients from grass. One of the positive human impacts to the desert biome is the building of parks and preserves like the Mojave National Preserve. They anchor the drifting sand with a gridlike network of straw fences. The re-introduction of wolves into the ecosystem completely shifted this dynamic and forests regenerated within several years. Biological materials and/or minerals could be deposited on aerated soil to expedite the crust formation processes. A desert tortoises thick shell insulates the animal and reduces water loss. Agreements that were made in the early 20th century failed to account for Native American water rights. Advantage: Habitat for Specialized Flora and Fauna One of the advantages of deserts is that they are home to a diverse group of plants and animals. Between 1958 and 1971, the government of Egypt constructed a massive dam on the Upper Nile (the southern part of the river, near Egypts border with Sudan). Saguaro cactuses, which live in the Sonoran Desert of Arizona and northern Mexico, expand like accordions to store water in the cells of their trunks and branches. In contrast, water used for irrigation is the result of runoff from precipitation.
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