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https://theconversation.com/only-10-of-native-plants-can-be-bought-as-seed-a-big-problem-for-nature-repair-heres-how-we-can-make-plantings-more-diverse-228899>
"More than 52 million hectares of land across Australia is degraded. Degraded
land lacks biodiversity and the natural balance of healthy ecosystems, making
it unfit for wildlife or cultivation. This means we are losing the benefits
that healthy ecosystems provide for nature and people.
To counter this threat, Australia signed the Global Biodiversity Framework in
2022, pledging to ensure 30% of degraded ecosystems are “under effective
restoration” by 2030. That’s roughly 15.6 million hectares of land across the
nation.
To kick-start ecosystem recovery, governments, environmental managers and
landholders often plant a diverse mix of native species on degraded land. The
crucial word here is diverse. Planting a wide variety of species makes
ecosystems more resilent, laying the foundation of a healthy environment for
wildlife.
But effective biodiverse plantings require large quantities of diverse native
seed. Amounts range from 600 to 20,000 seeds per square metre.
The problem is we don’t have enough seeds from Australia’s endemic plants –
species found only in this country (often with very limited distributions). Our
new research shows both the quantity and diversity of native seed available for
restoration are limited across the country. Only 10% of our native species are
readily available for sale as seed.
Multiply this supply-and-demand issue on the scale needed to meet Australia’s
ambitious goals for nature repair, and the seed shortages, are clearly
critical.
Our research identifies gaps in the seed supply chain. We have developed a new
method to optimise the biodiversity of plantings from these limited supplies.
We also recommend ways to strengthen the seed supply chain."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics