Stabilizing steep slopes with soil conditioners and plants

作者: M. Agassi , M. Ben-Hur

DOI: 10.1016/0933-3630(92)90025-V

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摘要: Abstract The approach in this study of runoff and erosion control on steep slopes was to combine soil stabilizers with the planting drought-resistant, perennial plants. effect 10 t ha−1 phosphogypsum (PG) + 70 kg polysaccharide (PS), PG 20 polyacrylamide (PAM), 200 PS (30–60%) studied plots 2 m width different lengths (12–20 m), at three sites Israel (semiarid conditions), under natural rainfall conditions. Likewise, observations establishment development nonirrigated, plants (40–60%), combined PS, were conducted two Israel. PAM treatments very efficient a wide range types, ESP, CaCO3 level, weather These reduced six- eleven-fold comparison control. No significant difference found between treatments. However, application problematic due its low dissulution rate high viscosity water. Two-hundred without only one experimental site calcic haploxeralf 300 mm average annual rainfall. combination PG, sucessful. developed well irrigation throughout long, dry summer. Only year later, creeper plant canopy covered an area 0.75–1.5 m, bushes 0.8–1.2 height.

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