title: Environmental and economic costs of soil erosion and conservation benefits.
abstract: Soil erosion is a major environmental threat to the sustainability and productive capacity of agriculture. During the last 40 years, nearly one-third of the world's arable land has been lost by erosion and continues to be lost at a rate of more than 10 million hectares per year. With the addition of a quarter of a million people each day, the world population's food demand is increasing at a time when per capita food productivity is beginning to decline.
authors.forename: D
authors.initials: D
authors.lastname: Pimentel
authors.forename: C
authors.initials: C
authors.lastname: Harvey
authors.forename: P
authors.initials: P
authors.lastname: Resosudarmo
authors.forename: K
authors.initials: K
authors.lastname: Sinclair
authors.forename: D
authors.initials: D
authors.lastname: Kurz
authors.forename: M
authors.initials: M
authors.lastname: McNair
authors.forename: S
authors.initials: S
authors.lastname: Crist
authors.forename: L
authors.initials: L
authors.lastname: Shpritz
authors.forename: L
authors.initials: L
authors.lastname: Fitton
authors.forename: R
authors.initials: R
authors.lastname: Saffouri
authors.forename: R
authors.initials: R
authors.lastname: Blair