Читать книгу Soil Health Analysis, Set - Группа авторов - Страница 51

Soil characterization includes providing a taxonomic description of the typical or most common soil(s) within the experimental site. Inclusion of the taxonomic system is needed for international comparisons. Soil type (e.g., Barnes clay loam), soil texture (sand, silt, and clay contents), typical pH, and bulk density are common soil characteristics, preferably by depth increments. Soil chemistry data include soil C (total, organic, and/or inorganic), soil N (total, NO₃, and NH₄), and other plant‐essential nutrients (e.g., P and K). Topographic information can be at a broad‐scale site level but can also have much finer granularity related to sampling for response variables. When appropriate, the hillslope position should be noted.