Pimentel, David; Burgess, Michael - In: Agriculture 3 (2013) 3, pp. 443-463
Since humans worldwide obtain more than 99.7% of their food (calories) from the land and less than 0.3% from the oceans … welfare. Soil erosion is one of the most serious threats facing world food production. Each year about 10 million ha of … cropland are lost due to soil erosion, thus reducing the cropland available for world food production. The loss of cropland is …