Other Soil Disturbances
Although world agriculture accounts for about three-quarters of the soil erosion worldwide, erosion
occurs whenever humans remove the vegetative cover [1,32]. The construction of roads, parking lots,
and buildings are examples of this problem. Although the rate of soil erosion from construction sites may
be exceedingly high, the erosion occurs for a relatively brief period. Once the land surface is seeded to
grass or covered with other vegetation, the erosion declines [33–35].
Natural ecosystems also suffer erosion losses. This is especially evident along stream banks, where
erosion occurs naturally due to the powerful action of the adjacent moving water. Increased soil losses
occur on steep surfaces (30% or more) when a stream cuts through adjacent land. Even on relatively flat
land with only a 2% slope, stream banks are eroded during heavy rains and flooding.
Other Soil DisturbancesAlthough world agriculture accounts for about three-quarters of the soil erosion worldwide, erosionoccurs whenever humans remove the vegetative cover [1,32]. The construction of roads, parking lots,and buildings are examples of this problem. Although the rate of soil erosion from construction sites maybe exceedingly high, the erosion occurs for a relatively brief period. Once the land surface is seeded tograss or covered with other vegetation, the erosion declines [33–35].Natural ecosystems also suffer erosion losses. This is especially evident along stream banks, whereerosion occurs naturally due to the powerful action of the adjacent moving water. Increased soil lossesoccur on steep surfaces (30% or more) when a stream cuts through adjacent land. Even on relatively flatland with only a 2% slope, stream banks are eroded during heavy rains and flooding.
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