Seeing Beyond the Surface: The role of Moles in Soil Health and Nutrient Cycling

UncategorizedBy Jun 09, 2023

Moles play an important ecological role in soil health and nutrient cycling, despite many viewing them as pests. Moles burrow deep into soil, improving soil health by creating tunnels that enhance water and air movement, increase soil porosity, and stimulate microbial activity. The tunnels also reduce surface runoff and increase water infiltration, leading to improved water holding capacity and resilience during droughts. Additionally, moles contribute to nutrient cycling by providing an ideal environment for soil microorganisms and distributing important nutrients throughout the soil. Supporting mole populations in gardens can foster healthy soil and allow moles to continue their essential ecological role.

Seeing Beyond the Surface: The Role of Moles in Soil Health and Nutrient Cycling

While many of us often view moles as mere pests that damage our lawns and gardens, they actually have an important ecological role in maintaining soil health and nutrient cycling. Moles are active burrowing animals that shape and aerate the soil, create pathways for water and air movement, and contribute to increased microbial activity. Thus, to understand the importance of moles in soil ecology, it is necessary to look beyond their surface.

The Role of Moles in Soil Health

Moles play a significant role in improving soil health. Their burrowing activities create tunnels and galleries deep into the soil, which provide numerous benefits. By burrowing, moles loosen compacted soil, enhance water movement, create better air infiltration and improve soil porosity. This moisture-rich environment stimulates microbial activity, resulting in increased nutrient cycling and improved plant growth. Additionally, the tunnels created by moles serve as safe harbors for beneficial insects such as earthworms which further contribute to soil health.

Moles’ burrowing activities also help to mitigate soil erosion. The tunnels created by moles significantly reduce surface runoff and greatly increase water infiltration. During heavy rainfall, the soil pores created by moles reduce the chance of soil compaction, facilitating the movement of water into the soil. This leads to an increase in water holding capacity within the soil profile, making it more resilient during periods of drought.

The Role of Moles in Nutrient Cycling

Moles also significantly contribute to nutrient cycling in soil. The tunnels created by these animals provide a perfect environment for soil microorganisms such as bacteria and fungi to reside. The decomposition of organic matter such as leaves or dead plants is accelerated in soil containing microorganisms, thereby providing important nutrients to surrounding vegetation. The extensive tunnel network created by moles helps distribute these nutrients throughout the soil profile, thus enriching the soil’s fertility.

FAQs Section:

Q: Do moles only benefit soil health and nutrient cycling, or do they also contribute to the larger ecosystem?
A: Yes, moles contribute to the larger ecosystem as an important food source for many predators, including foxes, birds of prey, and snakes.

Q: Do moles cause damage to plants and roots?
A: Moles do not typically feed on plant roots. However, they can accidentally damage roots while burrowing. This damage is generally not significant and can even promote root branching and thus plant growth.

Q: How can gardeners support mole populations in their gardens?
A: Gardeners can support mole populations by leaving patches of lawn unsprayed to encourage the abundance of earthworms and other nematodes, complementary groups of organisms vital to soil health. Additionally, considering the availability of prey in the surrounding area, providing sanctuary areas set aside for moles to burrow and move will sustain and facilitate mole populations growth.


Despite its often-unseen activities, mole presence in gardens and lawns positively impacts soil health and nutrient cycling. With their excavation activity, moles provide burrowing pathways that encourage aeration, water infiltration, and greater microbial activity, resulting in healthy soil. Through supporting mole populations in gardens, homeowners can foster the growth of healthy gardens while allowing moles to continue their essential ecological role.