Agriculture ; Amérique latine ; Culture en terrasse ; Géographie historique ; Lutte contre l'érosion ; Mexique ; Système de culture ; Venezuela ; Versant
Erosion control ; Farming system ; Farming;Agriculture ; Historical geography ; Latin America ; Mexico ; Slope ; Terrace cultivation;Terrace cropping ; Venezuela
Field work in Venezuela and Mexico suggested to the A. that very wide terraces incrementally developed in pre-Columbian times as a result of controlled erosion from hillside cultivation more than by purposeful human design. - (DWG)