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Turning Challenges into Opportunities at Soul Forest

Harini Shanker
Biodiverse Fruit Forest Area in 2023
Biodiverse Fruit Forest Area in 2024

When Soul Forest was just an idea, we explored countless designs and approaches. Our goal was clear: create a project to transform a degraded land into a biodiverse ecosystem that's scientifically sound, easy to implement, visually inspiring, and ultimately fosters harmony between people and nature. One guiding principle emerged early on: every part of Soul Forest would be a food forest, supporting both humans and local wildlife—birds, small animals, and beyond.

So, how do we do it right? Where is the best location? One choice was certain from the start: we wanted to plant fruit trees. Research shows that fruit trees significantly boost biodiversity over time, supporting a rich ecosystem. But these trees need deep, nutrient-rich soil for strong root growth, especially in the critical first year. The soil has to be just right, balancing organic matter and water-holding capacity to give these trees the foundation they need to thrive.

Assessing the Land

As we prepared to plant, we conducted soil tests to understand the land's condition. Given its history of neglect, we expected some challenges—sparse growth in certain areas and a lifeless look in others. We were ready to intervene and enrich the soil before planting fruit trees. However, the results revealed an even more daunting reality: the soil contained only 0.2% organic carbon, a stark contrast to the healthy benchmark of 2-3%. We knew this was bad, but we soon realized we were dealing with soil that was nearly "dead"—a consequence of human impact.

Just as haemoglobin is essential for carrying oxygen in our blood, organic carbon is crucial for soil health and its ability to support life. On top of that, the soil had barely any other nutrients, and its sandy texture meant it held little water, increasing the risk of erosion.

This issue reflects the larger reality of degraded lands across India. By 2019, 30.51 million hectares of India's land were considered degraded, increasing from 4.42% in 2015 to 9.45%. To put this in perspective, that's equivalent to the entire state of Tamil Nadu or filling an area the size of Mumbai 50 times over with barren, lifeless soil. The scale of recovery needed for such vast lands is immense.

Initial arcs made for fruit trees

Rethinking Soil Health

These findings indicated that a core part of our plan should be to rejuvenate the soil, gradually increasing organic carbon to the 2-3% range and enhancing its nutrient profile.

We can't assume this ecosystem will recover on its own. The soil has reached a point of 'almost no return'—a state where natural recovery is unlikely without a dramatic change. But we don't need to wait; we can give it a gentle nudge. Human intervention is essential, but it must work in harmony with nature, aligning with the local ecosystem to reduce shock, cut unnecessary costs, and maximise restoration.

Our first task was to create nutrient-rich planting pits for the fruit trees. Typically, this would mean bringing in different types of soil (like black or red soil) and mixing them with manure and nutrients. However, transporting large volumes of soil from other areas is costly and risky, potentially introducing pests and diseases.

Drawing from permaculture principles, we looked for a solution that relied on locally available resources rather than external inputs. Permaculture teaches us to value renewable resources and minimise waste—guiding us to work with nature to breathe life back into this ecosystem.

A Natural Solution Emerges

Just as we were exploring our options, we learned that the government initiated a project to restore a neglected lake near our site and build a bund to prevent further soil erosion and ease of commuting. Over the years, the topsoil from the surrounding land had washed into the lake bed, accumulating a layer of nutrient-rich, black silty soil. This soil not only contained the organic material we needed but also had excellent moisture retention properties.

As part of the restoration effort, the lake needed to be desilted to clear the aquifers and rejuvenate its ecosystem. This desilting provided us with a ready source of the very soil needed for our planting pits. It was a win-win: the lake was revived, our trees had a better chance of thriving, and we avoided the costs and risks associated with imported soil.

Black soil sourced from the lake

Working Within Nature's Systems and Using Local Materials

This experience reminded us of a key permaculture lesson: working within nature's systems often reveals the best solutions. By using local, renewable resources, we saved costs, reduced environmental impact, and strengthened our bond with the ecosystem. It's more than practical—it honors nature's wisdom, showing that its cycles often meet our needs when we listen and adapt.

At Soul Forest, our ecological restoration is rooted in harmony and regeneration. By prioritizing local resources and reducing waste, we create spaces of natural beauty and renewal. It's our way of repaying nature, honoring its cycles, and nurturing a sustainable relationship with the land.

Black soil sourcing