What are indicators of poor soil health?

Indicators of poor soil health primarily include low organic matter content, poor drainage, and a lack of microbial activity. Low organic matter content suggests that the soil is not able to retain moisture or nutrients effectively, which are essential for healthy plant growth. Organic matter contributes to the structure and fertility of the soil, and its absence can lead to a decline in soil quality.

Poor drainage is another critical indicator as it can lead to waterlogging, which adversely affects root health and oxygen availability for plants. When soil does not drain well, it can become saturated, creating an unhealthy environment for plants and soil organisms.

Additionally, a lack of microbial activity signifies a compromised ecosystem within the soil. Microorganisms are crucial for nutrient cycling, decomposition, and maintaining soil structure. Their absence can further degrade soil health, leading to difficulties in supporting plant life.

In contrast, the other provided options describe conditions associated with good soil health or do not align with recognized indicators of soil health degradation, reinforcing the correctness of identifying low organic matter, poor drainage, and lack of microbial activity as signs of poor soil health.