WHY FOREST SOIL TEXTURE IS NOT SAME IN ALL PLACES,?
Answers
Answer:Soil texture is a major control on the distribution of pore sizes in a volume of soil, which, in turn, largely determines both the water holding capacity and the soil water potential (Ψ, MPa) for a given volumetric water content (θ, m3 water m−3 soil)
Explanation:Soil texture is one of the most fundamental properties of a soil. Qualitatively, the term describes the “feel” of the soil material, whether coarse and gritty or fine and smooth. Quantitatively, however, this term represents the measured distribution of particle sizes, and the relative proportions of the various size ranges of particles in a given soil. Several soil particle size classifications exist. The most widely used one, developed by the U.S. Department of Agriculture (USDA), is presented in Table 12.1 and graphically in Figure 12.1. Based on the USDA system, soil particle sizes are separated into four groups: gravel, sand, silt, and clay. Soil textural class names are determined by the relative mass percentages of sand, silt, and clay-sized particles in the soil.