Because the region is so dry , one or two inadequate rainy season are enough to decrease the water supples , with crops , kill livestocks and cause other devastation .

由于此处非常干旱，只要有一个或两个不足量的雨季就会减少此地区的供水量，使庄稼枯萎，家畜死亡以及其它的灾难。