A Downslope Tillage System with Limited Slopelength on Sloping Farmlands in the Three Gorges Area and Its Erosion Reduction Effects
Abstract：The slopelength of each field varied with slope gradient and could be decided by the critical rill erosion slopelength. Slopelengths for different slope gradients on the basis of field surveys and experiments were recommends. The results indicated that compared to the bare slope farmland, the erosion reductions by horizontal ditches, terrace ridge and bank, terrace hedgerows were 63 %, 77%and 94 %, respectively, showing significant soil conservation effects. In addition, the limited downslope tillage was characterized by low cost, efficient, practical and simple operation, farmers readily acceptable, and it was suitable for promotion in the Three Gorges reservoir area.
Keywords：limited-slopelength downslope tillagehorizontal ditchterrace ridge or bankterrace hedgerowerosion control
Publication Date：2012-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 45-48 )