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Land use | Soil conserved | Moisture conservation | Soil fertility | Erosion reduction |
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Cultivated | Terraces filled by soil ranging from 0.2 to 0.90 | Yield increased by 25% while rainfall is similar to that before | Yield increment of 25% with some fertilizer input | Formation of rills and inter-rills decreased by 60% |
Natural forest | Soil deposition increased by 0.3–0.9 m after implementation of SWC measures | Greenness increased from time to time by 50% compared to before SWC implementation | Regeneration rate of plant species increased by 5–58% depending on soil conditions | Expansion of gullies decreased by 95% compared to before SWC implementation |
Reforestation | Erosion decreased but soil deposition increased by 0.3–0.9 m depth | Survival rate of seedling increased by 55% | High survival rate of seedlings (increase of more than 55%) | Rainfall droplets dissipated by soil cover increased |
Grazing | Extent of soil erosion decreased by soil deposit of 0.2–0.6 m | Growth and species diversity of grass increased by >30% | Biomass of grass species increased by 65% | Infiltration increased due to water stored in SWC measures |
Area closure | Extent of soil erosion decreased as evidenced by 0.3–1.2 m soil depth deposition | Grass, trees, and brush biomass and diversity increased by 18–87% depending on slope | Grass, trees, and brush biomass and diversity increase by 18–87% | No further new erosion channels were created or expanded |
Marginal land | Terraces were poorly maintained but contributed to soil accumulation of 0.1 to 0.4 m in depth | Plant diversity and regeneration increased by 10% | Plant diversity increased by 10% compared to before the program | Low runoff amount decreased the number of erosion channels |
Gully | Checked dam accumulated soil with depth range of 0.4–1.5 m | Plants spread for most of gully by 5–90% | Plant growth rate was fast with highly diversified species | Little gully expansion and development were observed |
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