| 11. | They belong to the Alfisol soil order.
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| 12. | Many subgroups intergrade to other soil orders.
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| 13. | The remaining soil orders have suborder categories that reflect unique characteristics of the given order.
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| 14. | Outside of ice ages, oxisols have generally been the dominant soil order in the paleopedological record.
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| 15. | The character of the soil orders reflects the arid, strongly-weathered nature of the Australian continent.
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| 16. | Four soil orders are found in the upstream river basin viz . ultisols, alfisols, inceptisols and entisols.
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| 17. | At the top, most general, level of the Australian Soil Classification, there are fourteen soil orders.
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| 18. | Because of their productivity and abundance, the Alfisols represent one of the more important soil orders for food and fiber production.
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| 19. | The term originally referred to the region's rich, black topsoil, much of it in the soil order Vertisols.
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| 20. | Spodosols are also found in warm, moist environments such as Florida and in fact are the most prominent soil order of the state.
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