Soil Conservation When deforestation occurs, the soil is removed. Another reason why there is a loss in the soil aspect of farming is because other smaller animals eat away the grass and remove the topsoil with their hooves. Enrichment and hyper-fertilizing of soil through planting will help the desert regain its usable land. Laws or acts enforced or ignored Reforestation and tree regeneration, water management, protection of the soil with sand fences and windbreakers etc. % OF USE ABLE LAND Approximately 42% of the land is use-able and has been protected from the CO2 and soil degradation. %OF CONTAMINATED LAND 52% of the land used for agricultural purposes is moderately or severely affected by soil degradation. The native vegetation has been very sensitive to the CO2 effect in the desert biome. %OF FOOD PRODUCTION FROM BIOME Each year approx. 12 million hectares are lost where 20 million tons of grain could have been grown. Food production is decreasing along with the percentage of usable land.