| 21. | As the plants grow, stolons are produced around the soil surface from the nodes.
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| 22. | Soil surface water runoff and therefore to more frequent streams.
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| 23. | Plants form a blanket of runners on the soil surface.
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| 24. | Is there something I can do to keep these roots below the soil surface?
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| 25. | They spin silken tubes near the soil surface for protection.
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| 26. | Also, evaporation tends to concentrate salts at the soil surface.
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| 27. | Harvesting is usually with scissors cutting just above the soil surface, excluding any roots.
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| 28. | In areas where the mean annual soil surface temperature is below, continuous permafrost forms.
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| 29. | It is good for cultivation, water table is quite deep below the soil surface.
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| 30. | The permafrost layer is typically within of the soil surface.
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