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Aridisols (or desert soils) are a soil order in USDA soil taxonomy. [1] Aridisols (from the Latin aridus , for "dry", and solum ) form in an arid or semi-arid climate. Aridisols dominate the deserts and xeric shrublands , which occupy about one-third of the Earth's land surface.
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Direct methods can be easily applied on deciduous species by collecting leaves during leaf fall in traps of certain area distributed below the canopy. The area of the collected leaves can be measured using a leaf area meter or an image scanner and image analysis software (ImageJ) and mobile applications (Leafscan, Petiole Pro, Easy Leaf Area ...
Soil bulk density, when determined at standardized moisture conditions, is an estimate of soil compaction. [3] Soil porosity consists of the void part of the soil volume and is occupied by gases or water. Soil consistency is the ability of soil materials to stick together. Soil temperature and colour are self-defining.
The springs can be represented by the following equation: p = k y {\displaystyle p=ky} where k {\displaystyle k} is the non-linear spring stiffness defined by the p–y curve, y {\displaystyle y} is the deflection of the spring, and p {\displaystyle p} is the force applied to the spring.
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A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, [1] usually borne laterally above ground and specialized for photosynthesis.Leaves are collectively called foliage, as in "autumn foliage", [2] [3] while the leaves, stem, flower, and fruit collectively form the shoot system. [4]