Soil testing should distinguish among the physical environment, chemical environment, nutrient reserves, available nutrients, and nutrient transformation processes. Different indicators have different measurement targets and scopes of application, and the results must be interpreted together ...
Evaluation of soil organic matter decomposition should simultaneously consider the organic matter pool, microbial decomposition processes, and nutrient release outcomes. SOC/SOM is used to assess organic matter storage, soil enzyme activity is used to locate carbon, nitrogen, and phosphorus ...