When it comes to food, soil is where it’s at. There’s the adage: healthy soil=healthy plants=healthy people. It’s true! That’s why nutrient dense foods are as important to identify as organic or local foods. Growing your own in an active soil food web is key.
We focused on what goes into healthy soil in a blog from May this year…and there’s more. Many of us live in urban or rural areas that have damaged and contaminated soils: oil spills, herbicides, asphalt and concrete bases in the soil, etc. In fact, it might be safe to say that most of us have something to consider in our environment. This blog isn’t meant to be a “doomer downer” entry, but to introduce to you some techniques to heal our soils:
- Microbial remediation uses the bacteria and other microbes present in a healthy soil food web. Composting and applying compost as well as increasing the variety of plant species present are two of the keys.
- Phytoremediation uses plants as the primary processors of toxins. Plants can extract the toxin (and then be removed themselves) or break the contaminant down, or bind it up.
- Mycoremediation uses fungi to process contaminants. These are especially good at long-chain carbon substances (such as those made from oil).
These three techniques alone, or in combination, can do much to work with natural processes to break down or bind up toxins. Remediated landscapes are then much healthier for people, plants and animals to be in.
Don’t go it alone! More research and working with specialists in the subject can help you to assess and formulate a plan for how to address an area safely. Healing a damaged landscape can take years to fully realize.
Community groups together with municipalities are more appropriate to make decisions for larger common spaces. Many municipalities and states mandate capping the damaged soil with clean soil brought in from outside. Just like throwing a rug over your dirty floor, capping is not a complete solution. While, it is an understandable approach given financial and time constraints, it might be worth suggesting alternative test plots using remediation and proceeding carefully from there.
If you want two sources to inspire you, please do check out Earth Repair: A grassroots guide to healing toxic and damaged landscapes by Leila Darwish (2013) and the work of Paul Steamiest of Fungi Perfecti. Both are cautious, optimistic, and passionate about transforming our landscapes into healthier places for future generations.