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Will Roots Save the World?

June 24, 2021

Humanity faces major challenges. Could roots hold the answers?

https://p.dw.com/p/3vWFX
Kwanza Dokumentation l Weltretter Wurzeln – Das Wunder unter der Erde
Image: Kwanza Filmproduktion

 It’s possible: Research shows that roots have the potential to provide food for the world's population, stop climate change and help extract resources in an environmentally friendly way.

Plants must withstand periods of drought and heat, as well as flooding, and they use their roots to do this. Roots also help them actively search for nutrients in the soil, while warding off dangers such as pathogens and toxins.

Kwanza Dokumentation l Weltretter Wurzeln – Das Wunder unter der Erde
Image: Kwanza Filmproduktion

Now, scientists at the research institute Forschungszentrum Jülich are investigating root growth using high-tech methods. The goal is to breed stress-resistant seeds for plants with robust roots. They are not alone: In Sweden, Professor Linda Maria Mårtensson is conducting research on a perennial wheat variety that will ensure higher yields while protecting the soil.

Radfahrer und Schafe auf Deich bei der Hamburger Hallig, Nordfriesland
Image: picture-alliance


Along the world's coasts, too, roots are a lifesaver. Coastal ecologist Professor Tjeerd Bouma has discovered that if special grasses are planted in front of dikes, they create a salt marsh that acts as a natural breakwater.
 

Infografik Phytomining ENG


Meanwhile, geochemist Dr. Oliver Wiche of the Technical University of Freiberg is researching something known as "phytomining." He wants to know which plants are best suited for mining metals from the soil. Could this root research give rise to a new, environmentally friendly branch of industry?



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