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  2. Canopy soils - Wikipedia

    en.wikipedia.org/wiki/Canopy_soils

    In contrast, canopy soils that form lower in the canopy are more likely to be sheltered from more extreme swings in light exposure and moisture content. Additionally, lower canopy soils also have a greater chance of accumulating organic matter that falls from higher neighboring trees, or from the higher regions of the tree housing the canopy soil.

  3. USDA soil taxonomy - Wikipedia

    en.wikipedia.org/wiki/USDA_soil_taxonomy

    An example would be Merrimac for the Merrimack River in New Hampshire. More than 14,000 soil series are recognised in the United States. This permits very specific descriptions of soils. [8] A soil phase of series, originally called 'soil type' describes the soil surface texture, slope, stoniness, saltiness, erosion, and other conditions. [8]

  4. Waffle slab foundation - Wikipedia

    en.wikipedia.org/wiki/Waffle_slab_foundation

    Waffle slab foundations adhere to International Building Code requirements. By 2008, most states put into effect the changes adopted in the 2006 IBC and, in regards to foundations, the on-grade mat foundation has become a more attractive design because, as an engineered system, it already accommodates the 2008 design recommendations, and required no major modifications to bring it into compliance.

  5. Soil structure - Wikipedia

    en.wikipedia.org/wiki/Soil_structure

    For example, the NSW Department of Land and Water Conservation advocates: increasing organic content by incorporating pasture phases into cropping rotations; reducing or eliminating tillage and cultivation in cropping and pasture activities; avoiding soil disturbance during periods of excessive dry or wet when soils may accordingly tend to ...

  6. Soil classification - Wikipedia

    en.wikipedia.org/wiki/Soil_classification

    Soil texture triangle showing the USDA classification system based on grain size Map of global soil regions from the USDA. For soil resources, experience has shown that a natural system approach to classification, i.e. grouping soils by their intrinsic property (soil morphology), behaviour, or genesis, results in classes that can be interpreted for many diverse uses.

  7. Colluvium - Wikipedia

    en.wikipedia.org/wiki/Colluvium

    This talus accumulation is an example of colluvium. Colluviation refers to the buildup of colluvium at the base of a hillslope. [1] [2] Colluvium is typically loosely consolidated angular material located at the base of a steep hill slope or cliff. Colluvium accumulates as gently sloping aprons or fans, either at the base of or within gullies ...

  8. Temperate broadleaf and mixed forests - Wikipedia

    en.wikipedia.org/wiki/Temperate_broadleaf_and...

    Extent of temperate broadleaf and mixed forests An example of temperate broadleaf and mixed forest in La Mauricie National Park, Quebec.. Temperate broadleaf and mixed forest is a temperate climate terrestrial habitat type defined by the World Wide Fund for Nature, with broadleaf tree ecoregions, and with conifer and broadleaf tree mixed coniferous forest ecoregions.

  9. Structural Soil - Wikipedia

    en.wikipedia.org/wiki/Structural_Soil

    In 1999, AMEREQ signed a licensing agreement with Cornell University and currently holds the patent rights to Cornell’s CU-Structural Soil Urban Tree Planting Mix. It is marketed as CU-Structural Soil for quality control and is produced by a network of qualified AMEREQ-licensed companies. CU-Structural Soil on average costs $35–$42 per ton ...

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