2 Results found
Drought is the most crucial constraint to crop productivity. Most of Earth’s surface area is not suitable for crop production due to severe water limitations, and the scenario is likely to get worse especially in the southern Midwest and southeastern United States. Recent climate models suggest an increase in aridity in many areas of the world. More than 35 percent of the world’s land is considered arid or semiarid. Even in areas of high rainfall, crops experience water stress due to uneven rainfall distribution. Drought can cause significant crop yield loss and under severe conditions up to 100 percent crop loss is experienced.