Participants were really into learning about soil at a walk through the Reykjavík Botanical Gardens

The educational walk was led by two experts from Land and Forest, Ms. Brynja Hrafnkelsdóttir and Mr. Bjarki Þór Kjartansson, accompanied by Ms. Björk Þorleifsdóttir, the educational representative of the Botanical Garden. Considering the cold temperatures and rain at the event, the participation in the walk was considered quite good.

The primary objective of the excursion was to emphasise the multifaceted nature of soil, extending beyond its mere classification as soil. Soil exhibits significant variations, largely attributed to the diverse organisms inhabiting it. It is imperative to foster awareness and appreciation for the remarkable life forms that reside beneath the surface, playing a pivotal role in maintaining ecological balance.

The participants were given a chance to experience different types of soil, dry soil under large spruce trees, fertile soil with plants, dense soil under grass cover and very fertile soil which benefits from added organic fertiliser every year.

During the discourse, the oft-overlooked subject of carbon sequestration in soil was delved into, a crucial component of discussions on binding. The guides emphasised the significance of plant roots and provided a visual demonstration of the extensive and substantial root systems of trees. Furthermore, they explored the intricate relationship between fungal roots and the symbiotic association they form with higher plants. This symbiosis involves a vital exchange of resources, with fungi facilitating the acquisition of essential materials like water, minerals, and particularly nitrogen and phosphorus for the plants. In return, the fungi receive sugars produced by the plants through photosynthesis.

In addition to the fungi, the soil contains bacteria, mites, springtails, and earthworms. The soil animals and microorganisms in the soil mix the soil and aid in the decomposition of organic matter, ensuring the nutrient cycle's continuity. During the walk, Ms. Brynja, an entomologist, discussed, among other things, insects that spend their entire lives or a portion of their life cycle in the soil.

Ms. Björk then introduced two methodologies that individuals can employ to compost organic waste. The first methodology involves the utilisation of earthworms for soil creation. These worms serve as domesticated animals that break down organic waste generated within the household. The second methodology, known as the Bokashi method, entails the use of a specialised container that houses microbes capable of composting organic raw materials through fermentation under oxygen-deprived conditions. Both methodologies are relatively straightforward and convenient for home implementation, and the resulting compost can be utilised for indoor, balcony, or garden cultivation.

participants showed great interest in all the aspects that were touched on during the walk. This is the second event of this summer organised by . The first one was called Life in the Forest. She says that both parties are keen on continuing this successful collaboration.

According to Ms. Brynja, participants demonstrated a keen interest in the various elements discussed during the walk. This marks the second event of the summer organised by Land and Forest Iceland in cooperation with Reykjavík Botanical Garden in Laugardalur. The inaugural event was titled "Life in the Forest." Both parties have expressed a mutual desire to continue this fruitful collaboration.

For the additional interest of our esteemed readers, we would like to draw your attention to a brief video produced by the Deggendorf University of Applied Sciences for the Bavarian Forest National Park. This video effectively illustrates the mutually beneficial symbiotic relationship between fungi and higher plants.

Thanks to Ms. Brynja Hrafnkelsdóttir for the information and Mr. Bjarki Þór Kjartansson for the photos.