Chapter+15

=Soil and Land: Formation, use, and Abuse = = = =media type="youtube" key="mJWM8xc-3i4" width="420" height="315" = =Vocabulary:= 1. Organization of land 2.Drainage nets and watersheds 3. Uplands and lowlands 4. Land units 5. Topography and land use 6. Hillslope limitations 7. Slope failure 8. Environmental impacts 9. Soil mantle 10. Solum 11. Soil skeleton 12. Weathering 13. Parent material 14. Residual material 15. Transported material 16. alluvium 17. Glacial drift 18. Loess 19. Soil properties 20. Composition 21. Texture 22. Moisture 23. Topsequence 24. Topsoil 25. Organic energy system 26. Soil hydrology 27. Infiltration 28. Capillary water 29. Gravity water 30. Evapotranspiration 31. Field capacity 32. Soil moisture budget 33. Soil chemical system 34. Mineral sources 35. Nitrogen fixation 36. Ions 37. Adsorption 38. Nutrient retention capacity 39. Contaminant sink 40. Soil forming processes 41. Leaching 42. Eluviation and illuviation 43. Moisture budget relations 44. Laterite 45. Salinization 46. Soil profile and horizons 47.Soil forming regimes 48. Models of soil formation 49. Wet tropical 50. Desert and grassland 51. Midlatitude forest 52. Tundra 53. Wetland 54. Floodplain 55. Cropland 56. Soil erosion 57. Process and factors 58. Universal soil loss and equation 59. Sediment yield rates 60. Land use relations 61. Environmental effects 62. Marginal and submarginal lands 63. Threshold of soil stability 64. Risk of natural events = =