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Ben-Hur, M., Univ of California, United States
Letey, J., Univ of California, United States
Effects of clay dispersion, impact energy of water drops, and chemical amendments on crust formation and infiltration rate (IR) of Haplic Durixeralf soil were studied using a sprinkler infiltrometer. The soil was subjected to two impact energies and three waters. Crust formation by the impact energy was found as a dominant factor in the IR reduction. Conversely, clay dispersion in the soil surface reduced the total soil infiltration capacity by 24%. Likewise, it was found that clay dispersion in the soil surface decreased the hydraulic conductivity of the crust and sharply increased its hydraulic resistance. The polymers had an amendatory effect on the IR. The polymers apparently adsorbed on the particle surfaces and acted as a cementing material holding primary particles together against the destructive forces of the water drops. Additional study results are discussed.
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Effect of polysaccharides, clay dispersion, and impact energy on water infiltration
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Ben-Hur, M., Univ of California, United States
Letey, J., Univ of California, United States
Effect of polysaccharides, clay dispersion, and impact energy on water infiltration
Effects of clay dispersion, impact energy of water drops, and chemical amendments on crust formation and infiltration rate (IR) of Haplic Durixeralf soil were studied using a sprinkler infiltrometer. The soil was subjected to two impact energies and three waters. Crust formation by the impact energy was found as a dominant factor in the IR reduction. Conversely, clay dispersion in the soil surface reduced the total soil infiltration capacity by 24%. Likewise, it was found that clay dispersion in the soil surface decreased the hydraulic conductivity of the crust and sharply increased its hydraulic resistance. The polymers had an amendatory effect on the IR. The polymers apparently adsorbed on the particle surfaces and acted as a cementing material holding primary particles together against the destructive forces of the water drops. Additional study results are discussed.
Scientific Publication
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