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Soil Organisms and the Soil Food Web – Introduction to the ISA Certified Arborist Exam
Description
This episode explains soil organisms and the soil food web for the ISA Arborist Certification Exam. Soil biology plays a major role in nutrient cycling, soil structure, and long-term tree health.You’ll learn how bacteria, fungi, protozoa, nematodes, and larger organisms interact, how organic matter fuels soil systems, and why biologically active soils support healthier trees. This episode connects soil biology to earlier discussions on structure and water.This episode is part of a larger ISA Arborist Certification study podcast series focused on soil function and root health.
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