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Chapter 19

Chapter 19. Urban Soils. Objectives. List characteristics of many urban soils Describe ways of dealing with urban soils Describe modified and structural soils Describe erosion control on urban sites Discuss zero-runoff concepts. Terms to Know. Bioswales Bioremediation Brown fields

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Chapter 19

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  1. Chapter 19 Urban Soils Soil Science and Management, 4E

  2. Objectives • List characteristics of many urban soils • Describe ways of dealing with urban soils • Describe modified and structural soils • Describe erosion control on urban sites • Discuss zero-runoff concepts Soil Science and Management, 4E

  3. Terms to Know • Bioswales • Bioremediation • Brown fields • Debris basins • Hydroseeding • Retention ponds • Recharge basins • Rip-rap • Silt fences Soil Science and Management, 4E

  4. Characteristics of Urban Soils • Soil variability and classification • Buried debris • Compaction • Soil contamination • Deicing salts • Heavy-metal contamination • Brown fields Soil Science and Management, 4E

  5. Urban Erosion • Controlling erosion • Keeping disturbed areas small • Protect disturbed areas • Keep runoff velocities low • Divert runoff away from disturbed areas • Retain sediment on-site • Establishing vegetation • Calculating soil loss Soil Science and Management, 4E

  6. Summary • Urban soils exhibit: • Great variation • Poor soil • Buried debris • Compaction • Contamination • Difficult to classify • Modified and structured soils can improve growth of trees and plants • Keep disturbed areas small • Establish vegetative cover • Divert runoff Soil Science and Management, 4E

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