Soil degradation in the United States: extent, severity, and trends

SECTION I: BASIC PROCESSES: Soil degradation

Global extent of soil degradation and desertification

Land use in the U.S.

Soil degradation category indicators: methodology

SECTION II: WATER AND WIND EROSION: Soil erosion by water from croplands

Soil erosion by water from grazing, CRP, and minor lands

Wind erosion on private lands in the U.S.

Water and wind erosion on U.S. croplands

Total erosion, wind erosion, and erosion on pasture and CRP lands

SECTION III: OTHER FORMS OF DEGRADATION: Desertification

Salinization

Soil degradation by mining and other disturbance

Wetland degradation

SECTION IV: POLICY AND CONSERVATION PROGRAMS: Policy options

Appendices.