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水土保持英文课件2 Factors of Soil Erosion

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rosion((22))?These factors influence both water and wind erosion, although in somewhat different ways. Factors of Soil ErosionFactors of Soil Erosion((22))?Soil erosion by water is the dominant geomorphic process for much of Earth’s land surface. 1. Climate1. Climate?Climate refers to weather and the variability of weather conditions through time. Precipitation varies throughout the world. ClimateClimate((22))?Erosion by rainfall occurs from raindrops striking soil, and water flowing over the soil. Several variables could be used to describe the erosivity of rainfall. ClimateClimate((33))?These variables include rainfall amount, ic energy, momentum, and intensity.ClimateClimate((44))?Two important rainfall variables that determine storm erosivity are rainfall amount and rainfall intensity.

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